H. Okamoto

发表

Outdoor performance of amorphous silicon and polycrystalline silicon PV modules

Kholid Akhmad, A. Kitamura, F. Yamamoto, 1997 .

Influence of Surface Morphology of Textured Substrate against Poly-Si Thin Film Solar Cells Performance

H. Okamoto, R. Muhida, T. Toyama, 2013 .

Hydrogenated amorphous silicon carbide as a window material for high efficiency a-Si solar cells

H. Okamoto, Y. Hamakawa, M. Kondo, 1982 .

Amorphous Si/Polycrystalline Si Stacked Solar Cell Having More Than 12% Conversion Efficiency

H. Okamoto, Y. Hamakawa, K. Okuda, 1983 .

Properties and structure of a‐SiC:H for high‐efficiency a‐Si solar cell

H. Okamoto, Y. Hamakawa, M. Kondo, 1982 .

Microstructures of high-growth-rate (up to 8.3 nm/s) microcrystalline silicon photovoltaic layers and their influence on the photovoltaic performance of thin-film solar cells

H. Okamoto, S. Nakano, T. Toyama, 2008 .

Structural and electrical studies of plasma-deposited polycrystalline silicon thin-films for photovoltaic application

H. Okamoto, T. Toyama, 2006 .

Long-Term Performance Modelling of Amorphous Silicon Photovoltaic Module

Akio Kitamura, Hiroaki Okamoto, Kholid Akhmad, 1997 .

PHYSICO-CHEMICAL PROPERTIES OF NEW GELATORS HAVING A CHROMEN-2-ONE SKELETON

H. Okamoto, H. Kita, Fusheng Zhang, 2006 .

A new type of high efficiency with a low‐cost solar cell having the structure of a μc‐SiC/polycrystalline silicon heterojunction

H. Okamoto, H. Takakura, Y. Hamakawa, 1990 .

Optoelectronics and Photovoltaic Applications of Microcrystalline Sic

H. Okamoto, Y. Hamakawa, G. Hirata, 1989 .

Amorphous-Silicon Photovoltaic X-Ray Sensor

H. Okamoto, Y. Hamakawa, Wei Guang-pu, 1985 .

Burst Reaction of Thin Films Excited by High-Flux Soft X-Rays

T. Kanashima, M. Okuyama, H. Okamoto, 2002 .

Carrier transport property in the amorphous silicon/amorphous silicon carbide multilayer studied by the transient grating technique

H. Okamoto, Y. Hamakawa, K. Hattori, 1987 .

Optical Absorption in Noble Metals

H. Okamoto, E. Haga, 1965 .

Influence of CdS window layer on 2-μm thick CdS/CdTe thin film solar cells

H. Okamoto, T. Toyama, M. Gotoh, 2003 .

Interfacial mixed-crystal layer in heterostructure elucidated by electroreflectance spectroscopy

H. Okamoto, T. Toyama, T. Yamamoto, 1997 .

New types of high efficiency solar cells based on a‐Si

H. Okamoto, Y. Hamakawa, S. Nonomura, 1983 .

X-ray diffraction study of CdS/CdTe heterostructure for thin-film solar cell: influence of CdS grain size on subsequent growth of (111)-oriented CdTe film

H. Okamoto, M. Ohta, T. Toyama, 2006 .

15% Efficiency CdS/CdTe thin film solar cells using CdS layers doped with metal organic compounds

H. Okamoto, R. Asomoza, T. Toyama, 2006 .

CdS Window Layer for Large Open Circuit Voltages of Low Environmental-Load CdS/CdTe Solar Cells

H. Okamoto, T. Toyama, K. Nakamura, 2003 .

Variable minority carrier transport model for amorphous silicon solar cells

H. Okamoto, Y. Hamakawa, S. Nonomura, 1983 .

Photomodulated electron-spin resonance in amorphous silicon

H. Okamoto, Kazuhisa Sato, K. Hattori, 1998 .

Picosecond carrier dynamics in optically illuminated glow discharge hydrogenated amorphous silicon

H. Okamoto, Y. Hamakawa, S. Namba, 1983 .

A Novel Polymer — Liquid Crystal System for Display Applications

V. F. Petrov, H. Okamoto, L. Blinov, 1999 .

Grain Growth in Cu2ZnSnS4 Thin Films Using Sn Vapor Transport for Photovoltaic Applications

H. Okamoto, T. Toyama, Y. Seo, 2013 .

Crystallographic study on CdS/CdTe heterostructure for 15% efficiency thin film solar cells

H. Okamoto, M. Ohta, T. Toyama, 2005, Conference Record of the Thirty-first IEEE Photovoltaic Specialists Conference, 2005..

Frequency-resolved drift mobility in a-Si:H

H. Okamoto, T. Hirao, K. Hattori, 2000 .

Modulated photoconductivity study of electron drift mobility in amorphous silicon

H. Okamoto, T. Hirao, K. Hattori, 2000 .

Recent Progress in Amorphous Silicon Solar Cells and Their Technologies

H. Okamoto, Y. Hamakawa, W. Ma, 1993 .

Localized surface plasmon enhanced microcrystalline–silicon solar cells

H. Okamoto, A. Matsuda, Jakapan Chantana, 2012 .

Synthesis and characterization of organic/inorganic heterostructure films for hybrid light emitting diode

H. Okamoto, T. Toyama, D. Yamaguchi, 2007 .

Investigation of amorphous Si superlattices by electroabsorption: a review

H. Okamoto, Y. Hamakawa, K. Hattori, 1992 .

Electroabsorption spectroscopy of amorphous Si/SiC quantum well structures

H. Okamoto, Y. Hamakawa, K. Hattori, 1989 .

Facile Synthesis of Semifluoroalkyl Triazole Derivatives for the Separation of Oil and Water

H. Okamoto, Q. Xiao, Ban-Peng Cao, 2022, Journal of Nanomaterials.

Mobility-lifetime product and interface property in amorphous silicon solar cells

H. Okamoto, Y. Hamakawa, S. Nonomura, 1983 .

Importance of Starting Procedure for Film Growth in Substrate-Type Microcrystalline-Silicon Solar Cells

H. Okamoto, A. Matsuda, Jakapan Chantana, 2011 .

Functionalized Cyclohexyl methacrylate based Copolymers for Negative Resist

H. Okamoto, S. Yagai, T. Karatsu, 2011 .

Control of Materials and Interfaces in μc-Si:H-based Solar Cells Grown at High Rate

H. Okamoto, A. Matsuda, Y. Sobajima, 2011 .

Photoinduced structural change and defect creation in hydrogenated amorphous silicon

H. Okamoto, K. Shimizu, M. Iida, 1998 .

Gap states in undoped amorphous silicon studied by below-gap modulated photocurrent spectroscopy

H. Okamoto, Y. Hamakawa, K. Hattori, 1988 .

Amorphous Silicon Solar Cells

H. Okamoto, Y. Hamakawa, 1989 .

Resonant Third-Order Optical Nonlinearities of Chloroform Solution and Neat Film of Poly(9,9-dioctylfluorenyl-2,7-yleneethynylene)

H. Okamoto, Zhongyu Li, K. Kasatani, 2006 .

Investigation on a Novel Adiabatic Absorber

H. Okamoto, C. Dang, E. Hihara, 2012 .

Fundamental gap of luminescent nanocrystalline silicon thin film

H. Okamoto, T. Toyama, Y. Kotani, 2000 .

Optical Transitions in Light-Emitting Nanocrystalline Silicon Thin Films

H. Okamoto, T. Toyama, S. Abo, 1999 .

Liquid Crystalline Properties of Dissymmetric Molecules Part 5: the Effects of Alkyl Chain Length and Linkages on Thermal Properties of Smectic A and C Phases in Three Aromatic Ring Systems

V. F. Petrov, H. Okamoto, Takeyasu Tasaka, 2001 .

Liquid crystalline properties of asymmetric molecules: II. Smectic properties of 4-alkoxyphenyl 4-(4-trifluoromethylbenzoyloxy)benzoates

V. F. Petrov, H. Okamoto, S. Takenaka, 1999 .

Hydrogen Content in a-SiC:H Films Prepared by Plasma Decomposition of Silane and Methane or Ethylene

H. Okamoto, Y. Hamakawa, Y. Tawada, 1984 .

A study of interface properties in a-Si solar cells with μc-Si(C)

H. Okamoto, Y. Hamakawa, Wen Ma, 1996 .

Universal frequency-dependent electronic conductivity near the mobility edge

H. Okamoto, T. Toyama, K. Hattori, 2002 .

Glow discharge produced amorphous silicon solar cells

H. Okamoto, Y. Hamakawa, Y. Nitta, 1979 .

Spectroscopic characterization of material and junction in amorphous silicon solar cells

H. Okamoto, Y. Hamakawa, H. Kida, 1985 .

Fast Optical Switching Using Oriented Cyanine Dye-Doped Nematic Liquid Crystal

H. Okamoto, Li Zhong-Yu, K. Kasatani, 2006 .

Laplace Meyer–Neldel relation

H. Okamoto, A. Matsuda, T. Toyama, 2010 .

Stretched exponential relaxation in disordered system

H. Okamoto, T. Toyama, Y. Sobajima, 2008 .

A study of built-in potential ina-Si solar cells by means of back-surface reflected electroabsorption

H. Okamoto, Y. Hamakawa, S. Nonomura, 1983 .

Amorphous Si: H Heteroface Photovoltaic Cells Based Upon p-i-n Junction Structure

H. Okamoto, Y. Hamakawa, Nobuhiko Fujita, 1980 .

Device physics and design of a-Si ITO/p-i-n heteroface solar cells

H. Okamoto, Y. Hamakawa, Takashi Yamaguchi, 1980 .

Effect of DC electric field on the basic properties of RF plasma deposited a-Si

H. Okamoto, Y. Hamakawa, Takuya Yamaguchi, 1980 .

A study of visible-light injection-electroluminescence in a-SiC/p-i-n diode

H. Okamoto, Y. Hamakawa, S. Nonomura, 1985 .

Detailed studies of optical edge and below gap absorption in a-Si1−xCx:H system

H. Okamoto, Y. Hamakawa, S. Nonomura, 1985 .

Characterization of a-SiC: H as a Window Material for p-i-n a-Si Solar Cells

H. Okamoto, Y. Hamakawa, M. Kondo, 1982 .

8% Efficiency a-SiC:H/a-Si:H Heterojunction Solar Cells

H. Okamoto, Y. Hamakawa, M. Kondo, 1982 .

Window Effects of Hydrogenated Amorphous Silicon Carbide in a p-i-n a-Si Solar Cell

H. Okamoto, Y. Hamakawa, M. Kondo, 1982 .

Optimizations of the Film Deposition Parameters for the Hydrogenated Amorphous Silicon Solar Cell

H. Okamoto, Y. Hamakawa, S. Nonomura, 1981 .

Carrier injection mechanism in an a-SiC p-i-n junction thin-film LED

H. Okamoto, Y. Hamakawa, T. Toyama, 1988 .

Electrical and Optical Properties of Amorphous Silicon and Its Alloys

H. Okamoto, 2004 .

a‐SiC:H/a‐Si:H heterojunction solar cell having more than 7.1% conversion efficiency

Yoshihiro Hamakawa, Hiroaki Okamoto, H. Okamoto, 1981 .

Amorphous-Silicon-Based Devices

H. Okamoto, Y. Hamakawa, Wen Ma, 1995 .

Modeling of Wide Bandgap Microcrystalline Silicon Carbide/Crystalline Silicon Heterojunctions

H. Okamoto, Y. Hamakawa, M. Han, 1992 .

Improvement in the efficiency of amorphous silicon solar cells utilizing the optical confinement effect by means of a TiO2/Ag/SUS back-surface reflector

H. Okamoto, Y. Hamakawa, K. Fujimoto, 1984 .

Analysis of photo-induced changes in the performance of amorphous silicon solar cells☆

H. Okamoto, Y. Hamakawa, S. Nonomura, 1983 .

Diffusion of carbon atoms in hydrogenated amorphous silicon carbide into hydrogenated amorphous silicon through the interface

H. Okamoto, Y. Hamakawa, S. Namba, 1984 .

Measurement of gap states in undoped a-SiGe: H alloys by modulated photocurrent spectroscopy

H. Okamoto, Y. Hamakawa, Y. Tsutsumi, 1989 .

Study of optically induced degradation of conductivity in hydrogenated amorphous silicon by transient grating method

H. Okamoto, Y. Hamakawa, S. Namba, 1983 .

High electric field electroluminescence in hydrogenated amorphous silicon carbide alloys

H. Okamoto, Y. Hamakawa, T. Toyama, 1997 .

P- and N-Type Microcrystalline SiC Fabricated by rf Plasma CVD with Ethane Gas

H. Okamoto, A. Asano, T. Toyama, 2003 .

Surface and interface effects in a-Si:H observed by transient grating spectroscopy

H. Okamoto, Y. Hamakawa, S. Namba, 1983 .

Back surface reflected electroabsorption as a new characterization method of internal potential in a-Si homo- and heterojunction

H. Okamoto, Y. Hamakawa, S. Nonomura, 1983 .

Characterization of mobility-lifetime products and interface property in amorphous silicon p-i-n junctions

H. Okamoto, Y. Hamakawa, S. Nonomura, 1983 .

Carrier dynamics at surface and interface in hydrogenated amorphous silicon observed by the transient grating method

H. Okamoto, Y. Hamakawa, S. Namba, 1983 .

Study of gap states in a-SiGe:H alloy system by below-gap modulated photocurrent spectroscopy

H. Okamoto, Y. Hamakawa, S. Sakata, 1987 .

Carrier Transport in Polycrystalline Silicon Thin Film Solar Cells Grown on a Highly Textured Structure

H. Okamoto, H. Takakura, Y. Hamakawa, 2004 .

Carrier Transport in Polycrystalline Silicon Photovoltaic Layer on Highly Textured Substrate

H. Okamoto, H. Takakura, Y. Hamakawa, 2003 .

Effects of ZnS:Mn/AlN multilayer structure on luminescent properties of nanostructured thin-film EL device

H. Okamoto, D. Adachi, T. Toyama, 2007 .

Structural and luminescence properties of nanostructured ZnS:Mn

H. Okamoto, D. Adachi, T. Toyama, 2000 .

Influence of CdCl2 Treatment on Structural and Electrical Properties of Highly Efficient 2-µm-Thick CdS/CdTe Thin Film Solar Cells

H. Okamoto, T. Toyama, Kyotaro Nakamura, 2002 .

Fundamental Properties of Titanium-Doped Indium Oxide and Its Application to Thin-Film Silicon Solar Cells

H. Okamoto, A. Matsuda, H. Muto, 2012 .

Ultraviolet-light-emitting AlN:Gd thin-film electroluminescence device using an energy transfer from Gd3+ ions to N2 molecules

H. Okamoto, D. Adachi, Dong-hun Lee, 2009 .

The relationship between $I_{{\rm H}_{\rm \alpha } } /(I_{{\rm SiH}}^* )^2$ and crystalline volume fraction in microcrystalline silicon growth

H. Okamoto, T. Higuchi, A. Matsuda, 2010 .

Highly conductive p-type microcrystalline SiC:H prepared by ECR plasma CVD

H. Okamoto, Y. Hamakawa, Y. Hattori, 1988 .

Amorphous and Microcrystalline SiC as New Synthetic Wide Gap Semiconductors

H. Okamoto, Y. Hamakawa, 1992 .

Toward 20% Efficiency With a-Si // poly-Si Tandem Solar Cell

C. Lim, H. Okamoto, Y. Hamakawa, 1992 .

Analysis of light and current induced effects in hydrogenated amorphous silicon

H. Okamoto, Y. Hamakawa, T. Kamada, 1985 .

Visible Light Emitting Diode Employing Electrochemically Anodized Nanocrystalline Silicon Thin Film

H. Okamoto, T. Toyama, Takashi Yamamoto, 1996 .

Light emission from nanocrystalline Si thin-film light emitting diodes due to tunneling carrier injection

H. Okamoto, T. Toyama, H. Kida, 1998 .

Pressure Effects on Electrical and Optical Properties of Si–As–Te Chalcogenide Glasses Fabricated in the Gravity Environment and in a Microgravity Environment

H. Okamoto, Y. Hamakawa, Yuki Kobayashi, 1996 .

Modulated photoconductivity study of charged and neutral defects in undoped amorphous silicon

H. Okamoto, Y. Hamakawa, Y. Adachi, 1994 .

Fluorescence spectra and fluorescence lifetime of colloidal solution of an organic dye, bis-MSB, and third-order optical nonlinearities of its excitons

H. Okamoto, H. Miyata, S. Takenaka, 2001 .

Stereoselective Construction of Functionalized Fusicoccane Framework

H. Okamoto, N. Kato, H. Takeshita, 1994 .

Quaternary Ammonium (Hypo)iodite Catalysis for Enantioselective Oxidative Cycloetherification

H. Okamoto, K. Ishihara, M. Uyanik, 2010, Science.

Regioselective Michael addition of thiols to tertiary fumaric amide esters

H. Okamoto, A. Kamimura, M. Shirai, 2002 .

On the regioselectivity for the Michael addition of thiols to unsymmetrical fumaric derivatives

H. Okamoto, A. Kakehi,, A. Kamimura, 2003 .

Novel insights into photoisomerization of olefins

H. Okamoto, H. Zeng, H. Misawa, 1988 .

Synthetic Modification of Cotylenol. Synthesis of 3α-Cotylenyl Methyl Dithiocarbonates with Four Diastereomeric Glycol Moieties and Their Plant Growth Regulating Activity

H. Okamoto, N. Kato, H. Takeshita, 1995 .

Stereoselective Construction of Functionalized Fusicoccane Framework.

H. Okamoto, N. Kato, H. Takeshita, 1994 .

Effects of solvents and substituents controlling the adiabatic or diabatic modes of the cis → trans isomerization of styrylpyrenes in the excited singlet state

H. Okamoto, K. Tokumaru, Yoshihiko Kikuchi, 1994 .

Potential energy surfaces of a one-way photoisomerizing olefin studied by photoacoustic calorimetry and X-ray crystallography

H. Okamoto, T. Arai, K. Tokumaru, 1993 .

Effect of Acetonitrile Completely Suppressing Trans-to-cis Photoisomerization of Styrylpyrene Substituted with a Nitro Group

H. Okamoto, T. Arai, K. Tokumaru, 1993 .

Effect of Substituents on the Equilibrium between Trans and Perpendicular Conformers in the Triplet Excited State of Substituted Styrylpyrenes

H. Okamoto, T. Arai, K. Tokumaru, 1993 .

Behavior of the excited cis singlet state of a one-way isomerizing olefin. Further insight into potential energy surfaces of 1-(3,3-dimethyl-1-butenyl)pyrene.

H. Okamoto, T. Arai, H. Sakuragi, 1991 .

Highly Selective Cis-Trans Photoisomerization of 1-Pyrenylethylenes: Relations between the Modes of Isomerization and Potential Energy Surfaces

H. Okamoto, T. Arai, H. Sakuragi, 1990 .

One-way isomerization of a [26]orthoparacyclophene: Spectroscopic evidence for adiabatic sixfold Z/E-photoisomerization

H. Okamoto, O. Wennerström, T. Arai, 1990 .

Mechanism for photoisomerization of 1-styrylpyrene: finding of a novel type of triplet energy surface with two decay funnels

H. Okamoto, T. Arai, H. Sakuragi, 1989 .

Total synthesis of optically active cotylenol, a fungal metabolite having a leaf growth activity. Intramolecular ene reaction for an eight-membered ring formation

H. Okamoto, N. Kato, H. Takeshita, 1996 .

Liquid crystalline properties of dissymmetric molecules IV. The substituent effect on thermal properties of nematic and smectic A phases in three aromatic ring systems with ester linkages

V. F. Petrov, H. Okamoto, Takeyasu Tasaka, 2000 .

Monolayer and multilayer of a liquid crystal copolysiloxane at the air–water interface

H. Okamoto, S. Takenaka, Xu-Sheng Feng, 2000 .

Synthesis, liquid crystalline and gelation properties of 4-semifluoroalkoxybiphenyl derivatives

H. Okamoto, Q. Xiao, Y. Morita, 2019, Journal of Fluorine Chemistry.

4-Perfluoroalkylbutoxybenzene derivatives as liquid crystalline organogelators based on phase-selective gelators

H. Okamoto, Y. Matsue, Y. Morita, 2016 .

Gelation Properties of Aprotic Low-Molecular-Mass Organic Gelators Based on a Gemini 4-[2-(Perfluoroalkyl)ethylsulfanyl]phenoxy Derivative Unit

H. Okamoto, Y. Morita, Tomohiro Yoshida, 2015 .

X-ray and SEM Observations of Smectic A Phase and Dried Gel Fibers Formed in a Fine Capillary

H. Okamoto, H. Kita, Fusheng Zhang, 2005 .

Synthesis and monolayer formation of liquid crystal polysiloxanes having a lateral side chain with a perfluoroalkyl chain

H. Okamoto, S. Takenaka, Xu-Sheng Feng, 2001 .

Gelation by Novel Aprotic Low-molecular-mass Organic Gelators Based on a Gemini 4-[2-(Perfluorobutyl)ethylthio]phenoxy Unit

H. Okamoto, Y. Morita, Tomohiro Yoshida, 2015 .

Gap-states and their capture-cross-section distribution in a-Si:H studied by frequency-resolved photocurrent spectroscopy

H. Okamoto, Y. Hamakawa, K. Hattori, 1991 .

X-ray pole figure analysis on columnar-structured microcrystalline silicon: Growth-induced crystallographic axial alignment in solid phase

H. Okamoto, H. Takakura, Y. Hamakawa, 2007 .

Angular Distribution with Respect to Growth Direction of Microcrystalline Silicon Grown in Hybrid Phase

H. Okamoto, H. Takakura, Y. Hamakawa, 2006, 2006 IEEE 4th World Conference on Photovoltaic Energy Conference.

Energetic distribution of dangling bond states in undoped amorphous silicon

H. Okamoto, Y. Hamakawa, K. Hattori, 1987 .

Fractal study of surface nanostructures of microcrystalline silicon films: From growth kinetics to electronic transport

H. Okamoto, T. Toyama, Y. Sobajima, 2009 .

Halogenation in achiral liquid crystals: terminal and linking substitutions

V. F. Petrov, H. Okamoto, Y. Shimizu, 2001 .

Liquid crystalline properties of 4-alkoxyphenyl 3-fluoro- and 3-methyl-4-thiocyanatophenyl terephthalates

V. F. Petrov, H. Okamoto, S. Takenaka, 1999 .

Liquid Crystalline Properties of 4-Alkoxyphenyl 4-Thiocyanatophenyl Terephthalates

H. Okamoto, M. Hayashi, S. Takenaka, 1996 .

Novel liquid crystals having a thiocyano group at the terminal position

H. Okamoto, S. Takenaka, M. Hayashi, 1996 .

X-ray diffraction study of some liquid crystalline 2,5-disubstituted 1, 3, 2-dioxaborinane derivatives

V. F. Petrov, H. Okamoto, Takeyasu Tasaka, 2000 .

A New Mesomorphism of the Alkyl 4-(2-Perfluoroalkyl)ethoxybenzoate Derivatives

V. F. Petrov, H. Okamoto, S. Takenaka, 1998 .

LIQUID CRYSTALLINE PROPERTIES OF SOME COMPOUNDS HAVING A PERFLUOROALKYL GROUP

H. Okamoto, S. Takenaka, Naonobu Yamada, 1998 .

Liquid-Crystalline Properties of Alkyl 4-[2-(Perfluorooctyl)ethoxy]benzoates

H. Okamoto, S. Takenaka, H. Murai, 1997 .

Synthesis and Physico-Chemical Properties for 2-Oxochromen-6-yl 4-(4-Alkoxyphenylazo)benzoates

H. Okamoto, Y. Morita, K. Kasatani, 2009 .

Synthesis of 4-Alkoxy-2-substituted-benzenethiols and Their Application to Thermotropic Liquid Crystals

H. Okamoto, Y. Morita, S. Takenaka, 2002 .

The Influence of Lateral Substitution of Liquid Crystals on the Structure of their Smectic Ad Phases

V. F. Petrov, H. Okamoto, Acknowledgements, 2000 .

Physico-Chemical Properties of New Liquid Crystals Incorporating a Benzofuran-2-one Skeleton

H. Okamoto, Fusheng Zhang, Y. Morita, 2006 .

Physico-Chemical Properties of New Liquid Crystals Incorporating a Lactone Ring

H. Okamoto, Y. Morita, Takeyasu Tasaka, 2005 .

LIQUID CRYSTALLINE PROPERTIES OF DISSYMMETRIC MOLECULES, PART XI: THE EFFECT OF ESTER AND LATERAL NITRO GROUPS ON THE MOLECULAR ARRANGEMENT IN SMECTIC PHASES IN THREE AROMATIC-RING SYSTEMS CONNECTED BY TWO ESTER GROUPS

H. Okamoto, Y. Morita, S. Takenaka, 2003 .

Liquid-Crystalline Properties of Dissymmetric Molecules Part 3: Smectic Properties of 4-[2-(Perfluoroalkyl)ethoxy]-Substituted Nitrobenzenes and Benzonitriles

V. F. Petrov, H. Okamoto, S. Takenaka, 1999 .

Liquid crystalline properties of dissymmetric molecules part X: The effect of a terminal nitro group on molecular arrangement in smectic phases in three aromatic ring systems with two ester groups

H. Okamoto, Y. Morita, Takeyasu Tasaka, 2003 .

The Effect of Trifluoromethyl and Difluoromethoxy Groups on Mesomorphic Properties

V. F. Petrov, H. Okamoto, S. Takenaka, 2001 .

Solar cell of 6.3% efficiency employing high deposition rate (8 nm/s) microcrystalline silicon photovoltaic layer

H. Okamoto, T. Higuchi, M. Kurihara, 2009 .

Electrical Properties of Laser-Annealed Glow-Discharge Amorphous Silicon Layers

H. Okamoto, S. Namba, K. Gamo, 1980 .

Physicochemical Properties of New Gelators Based on a Chromen-2-one Core

H. Okamoto, H. Kita, Fusheng Zhang, 2005 .

Spin separation and spin Hall effect in quantum wires due to lateral-confinement-induced spin-orbit-coupling

H. Okamoto, K. Hattori, 2006 .

Synthesis and Physico-Chemical Properties of Polar Liquid Crystal Materials Incorporating a Coumarin Skeleton at the Terminal Position

H. Okamoto, Y. Morita, K. Kasatani, 2008 .

On the Large Threshold Voltage Shifts of Nano-structured Thin Film Electroluminescent Devices

H. Okamoto, D. Adachi, T. Toyama, 2009 .

Liquid-Crystalline Properties of Dissymmetric Molecules Part 8: The Effect of Conformation on the Mesomorphic Properties for Liquid–Crystal Compounds Having a Lateral Long Alkoxy Group

H. Okamoto, Y. Morita, S. Takenaka, 2001 .

Phase Diagrams of Dilute Binary Alloys

H. Okamoto, 2002 .

Visible light thin film LED made of a-SiC p-i-n junction

H. Okamoto, Y. Hamakawa, Y. Hattori, 1988 .

Selective absorber using glow-discharge amorphous silicon for solar photothermal conversion

Toshio Adachi, Masanori Okuyama, Yoshihiro Hamakawa, 1980 .

Surface Area Variation of Evaporated Barium Film by Oxidation

H. Okamoto, Y. Tuzi, 1958 .

Solution-processed ZnO nanocrystals in thin-film light-emitting diodes for printed electronics

H. Okamoto, T. Toyama, H. Kawasaki, 2010 .

An electroluminescence device for printable electronics using coprecipitated ZnS:Mn nanocrystal ink

H. Okamoto, D. Adachi, T. Toyama, 2009, Nanotechnology.

Electroluminescent properties of chemically synthesized zinc sulfide nanocrystals doped with manganese

H. Okamoto, D. Adachi, T. Toyama, 2009 .

Orange electroluminescence from chemically synthesized zinc sulfide nanocrystals doped with manganese

H. Okamoto, D. Adachi, T. Toyama, 2008 .

Electroreflectance study of silicon nanocrystals

H. Okamoto, T. Toyama, 2007 .

Optical transitions in silicon nanocrystals near structural transition region to amorphous silicon

H. Okamoto, A. Asano, T. Toyama, 2002 .

Novel green thin-film electroluminescent devices utilizing ZnS nanocrystals doped with Tb compounds

H. Okamoto, T. Toyama, K. Yoshimura, 2005 .

Measurement of the energy band discontinuities in a-SiC p-i-n junctions by internal photoemission

H. Okamoto, Y. Hamakawa, Wei Guang-pu, 1989 .

Characterization of boron doped μc-SiC/c-Si heterojunction solar cells

H. Okamoto, Y. Hamakawa, M. Han, 1989 .

Structural and Optical Properties of Highly Efficient 2- μm Thick CdS/CdTe Thin Film Solar Cells

H. Okamoto, T. Toyama, M. Gotoh, 2001 .

Ion-induced Auger electron spectroscopy—A new detection method for compositional homogeneities of alloyed atoms in silicon

H. Okamoto, A. Hiraki, T. Imura, 1979 .

Physical Properties of p-Type Tin Monoxide Films Deposited at Low Temperature by Radio Frequency Magnetron Sputtering

H. Okamoto, T. Toyama, Y. Seo, 2011 .

Polarization Anisotropy in Electroreflectance Spectrum of Porous Silicon

H. Okamoto, T. Toyama, Y. Nakai, 2002 .

Electronic behaviors of the gap states in amorphous semiconductors

H. Okamoto, Y. Hamakawa, 1977 .

Below-gap primary photocurrent associated with correlated defects in hydrogenated amorphous silicon

H. Okamoto, Y. Hamakawa, T. Kamada, 1985 .

Electroreflectance Study of Light-Emitting Porous Silicon

H. Okamoto, T. Toyama, Akihito Shimode, 2000 .

Microcrystalline silicon carbide — New useful material for improvement of solar cell performance

C. Lim, H. Okamoto, Y. Hamakawa, 1994 .

Electroluminescent Devices with Nanostructured ZnS:Mn Emission Layer Operated at 20 V 0-p

H. Okamoto, D. Adachi, T. Toyama, 2000 .

Electroreflectance Study of Porous Silicon made from Substrates with Different Resistivities

H. Okamoto, T. Toyama, Y. Nakai, 2000 .

Electroluminescence and Avalanche Multiplication at Electric Field Strength Exceeding 1 MV/cm in Hydrogenated Amorphous SiC Alloy

H. Okamoto, Y. Hamakawa, T. Toyama, 1996 .

Amorphous-SiC thin-film p-i-n light-emitting diode using amorphous-SiN hot-carrier tunneling injection layers

H. Okamoto, Y. Hamakawa, T. Toyama, 1989 .

Interpretation of CPM measurements in amorphous semiconductors

H. Okamoto, Y. Hamakawa, S. Fukuda, 1993 .

Carrier dynamics in optically illuminated a-Si:H

H. Okamoto, Y. Hamakawa, S. Namba, 1983 .

Green electroluminescence from AlN:Tb thin film devices on glass

H. Okamoto, D. Adachi, T. Toyama, 2007 .

Transient photocurrent study of the dangling bond centre in undoped amorphous silicon

H. Okamoto, Y. Hamakawa, K. Hattori, 1988 .

Hot‐electron‐induced electroluminescence and avalanche multiplication in hydrogenated amorphous silicon

H. Okamoto, Y. Hamakawa, T. Toyama, 1995 .

Measurement of deep states in undoped amorphous silicon by current transient spectroscopy

H. Okamoto, Y. Hamakawa, K. Hattori, 1986 .

Adsorption of Water Vapour on Lead Borosilicate Glass in Vacuum

H. Okamoto, Y. Tuzi, 1958 .

Adsorption of Water Vapour on Glass and Other Materials in Vacuum

H. Okamoto, Y. Tuzi, 1958 .

Photocurrent multiplication in a hydrogenated amorphous silicon-based p-i-n junction with an a-SiN:H layer

H. Okamoto, Y. Hamakawa, M. Yoshimi, 1992 .

An extended model for the mobility edge carrier transport

H. Okamoto, T. Toyama, K. Hattori, 2004 .

Photocurrent multiplication in amorphous Si/crystalline Si heterojunction

H. Okamoto, Y. Hamakawa, T. Toyama, 1997 .

Analysis of junction and film properties in high efficiency amorphous silicon solar cells

H. Okamoto, Y. Hamakawa, S. Nonomura, 1984 .

Tunneling Assisted Photocurrent Multiplication in a-Si Based p-i/Sin x /i-n Structure Junction

H. Okamoto, Y. Hamakawa, M. Yoshimi, 1990 .

Optimization of GD a-Si: H Film Property for Photovoltaic Device by Means of the Cross Field Plasma Deposition Technique

H. Okamoto, Y. Hamakawa, Y. Tawada, 1981 .

Lateral Grain Sizes of μc-Si Photovoltaic Layers Derived from Self-Similarity of Growth-Induced Surface Roughness

H. Okamoto, T. Toyama, Y. Sobajima, 2006, 2006 IEEE 4th World Conference on Photovoltaic Energy Conference.

Nonequilibrium Occupancy of Dangling Bond Defects in Undoped Amorphous Silicon Studied by Subgap-Light-Induced Electron Spin Resonance

H. Okamoto, K. Hattori, S. Abe, 2004 .

Photocarrier transport in undoped microcrystalline silicon studied by the modulated photocurrent technique

H. Okamoto, N. Murakami, K. Hattori, 2003 .

Relation between pin a-Si:H solar-cell performances and intrinsic-layer properties prepared by Cat-CVD

H. Okamoto, A. Masuda, T. Itoh, 2006 .

Microstructural dependence of electron and hole transport in low-temperature-grown polycrystalline-silicon thin-film solar cells

H. Okamoto, H. Takakura, Y. Hamakawa, 2002 .

Correlation between Microstructure and Photovoltaic Performance of Polycrystalline Silicon Thin Film Solar Cells

H. Okamoto, T. Matsui, T. Toyama, 2002 .

Solid Phase Crystallization in Initial Growth Region of Polycrystalline Silicon Layer During Deposition at 180°C by Plasma Chemical Vapor Deposition

H. Okamoto, R. Muhida, T. Sugano, 2003 .

Amorphous Silicon-Carbide Multilayered Visible-Light Emitting Diode

H. Okamoto, Y. Hamakawa, Y. Hattori, 1987 .

Determination of the Built-in Potential in a-Si Solar Cells by Means of Electroabsorption Method

Shuichi Nonomura, Yoshihiro Hamakawa, Hiroaki Okamoto, 1982 .

Large and Fast Resonant Third-Order Optical Nonlinearities of Silicon 2,3-Naphthalocyanine Bis(trihexylsilyloxide)

H. Okamoto, S. Takenaka, Fu Gang, 2005 .

RESONANT THIRD-ORDER OPTICAL NONLINEARITIES OF HIGHLY-SUBSTITUTED PHTHALOCYANINE DERIVATIVES

H. Okamoto, K. Kasatani, G. Fu, 2006 .

Third-order optical nonlinearities of naphthalocyanine derivatives measured by resonant femtosecond degenerate four-wave mixing technique

Kazuo Kasatani, Hiroaki Okamoto, Gang Fu, 2005 .

Resonant Third-Order Optical Nonlinearities of Silicon 2,3-Naphthalocyanine Dioctyloxide Measured by Femtosecond Degenerate Four-Wave Mixing Technique

H. Okamoto, S. Takenaka, K. Kasatani, 2005 .

Third-Order Optical Nonlinearities of Naphthalocyanine-Derivative-Doped Polymer Films Measured by Resonant Femtosecond Degenerate Four-Wave Mixing

H. Okamoto, S. Takenaka, K. Kasatani, 2005 .

OPTICAL OBSERVATION OF QUANTUM-SIZE EFFECT IN THE AMORPHOUS SILICON/AMORPHOUS SILICON CARBIDE MULTILAYER

H. Okamoto, Y. Hamakawa, K. Hattori, 1988 .

Photoinduced Structural Changes in Hydrogenated Amorphous Silicon

H. Okamoto, K. Shimizu, K. Hattori, 1998 .

Resonant third-order optical nonlinearities of 1,3-bis[(3,3-dimethylindolin-2-ylidene)methyl]croconine

H. Okamoto, Zhongyu Li, K. Kasatani, 2006 .

Development of Biocompatible Resins for 3D Printing of Direct Aligners

H. Okamoto, K. Maki, H. Nakano, 2019, Journal of Photopolymer Science and Technology.

Electroreflectance Spectrum of CdTe 1-xSx Mixed Crystal Layer in CdS/CdTe Thin-Film Solar Cell

H. Okamoto, T. Toyama, Teruaki Yamamoto, 1998 .

Research and Development of an Efficient Synthesis of a Key Building Block for Anti-AIDS Drugs by Diphenylprolinol-Catalyzed Enantio- and Diastereoselective Direct Cross Aldol Reaction

Hiroaki Okamoto, H. Okamoto, Yumi Hayashi, 2016 .

The effect of fluorination: a crystallographic and computational study of mesogenic alkyl 4-[2-(perfluorooctyl)ethoxy]benzoates.

H. Okamoto, T. Taketsugu, S. Takenaka, 2004, Chemistry.

Amorphous and heterogeneous silicon thin films: Fundamentals to devices -- 1999. Materials Research Society symposium proceedings: Volume 557

H. Okamoto, S. Guha, R. Schropp, 1999 .

Influence of substrate texture on microstructure and photovoltaic performances of thin film polycrystalline silicon solar cells

Hiroaki Okamoto, Takuya Matsui, H. Okamoto, 2002 .

Direct transition at the fundamental gap in light-emitting nanocrystalline Si thin films

H. Okamoto, T. Toyama, Y. Kotani, 1999 .

Excitation Mechanism of Luminescence Centers in Nanostructured ZnS:Tb,F Thin-Film Electroluminescent Devices

H. Okamoto, D. Adachi, T. Toyama, 2008 .

Total Synthesis of (-)-Cotylenol, a Fungal Metabolite Having a Leaf Growth Activity

H. Okamoto, N. Kato, H. Takeshita, 1994 .

Improvement of carrier injection efficiency in a-SiC p-i-n LED using highly-conductive wide-gap p, n type a-SiC prepared by ECR CVD

H. Okamoto, Y. Hamakawa, Y. Hattori, 1987 .

Lifetime and Diffusion Coefficient of Carriers in X-Ray Irradiated a-Si:H

H. Okamoto, Y. Hamakawa, S. Namba, 1983 .

p- and n-type microcrystalline Si1-xCx fabricated by plasma CVD with 40.68-MHz excitation source

H. Okamoto, T. Toyama, T. Ichihara, 2004 .

Valency control of P-type a-SiC:H having the optical band gap more than 2.5 eV by electron-cyclotron resonance CVD (ECR CVD)

H. Okamoto, Y. Hamakawa, Y. Hattori, 1987 .

Hybrid-phase growth in microcrystalline silicon thin films deposited by plasma enhanced chemical vapor deposition at low temperatures

H. Okamoto, T. Sugano, T. Toyama, 2005 .

Thin-film electroluminescence device utilizing ZnS:Mn nanocrystals as emission layer

H. Okamoto, D. Adachi, T. Toyama, 2002 .

Synthesis and Gelation Ability of 1-(Perfluoroalkylethylthio)-4-alkoxybenzene Derivatives as Rod-shaped Organic Gelators without a Hydrogen-bonding Group

H. Okamoto, Y. Morita, A. Ohashi, 2018, Chemistry Letters.

4-Perfluoroalkylbutoxybenzene derivatives as liquid crystalline organogelators based on phase-selective gelators

H. Okamoto, Y. Matsue, Y. Morita, 2016 .

Full‐color nanostructured thin‐film electroluminescent device utilizing ZnS nanocrystals doped with activator‐ions

H. Okamoto, D. Adachi, T. Toyama, 2008 .

Phenomenological scaling of optical absorption in amorphous semiconductors

H. Okamoto, Y. Hamakawa, K. Hattori, 1996 .

Polarized electroabsorption effect in hydrogenated amorphous silicon alloys and its implication for band edge mobility

H. Okamoto, Y. Hamakawa, K. Hattori, 1994 .

Implications of electroabsorption spectra for band edge parameters in amorphous silicon

H. Okamoto, 1993 .

Resonant enhancement of third‐order nonlinear optical property in J‐like aggregates of a cyanine dye

Kazuo Kasatani, Hiroaki Okamoto, Zhongyu Li, 2005 .

Langmuir and Langmuir–Blodgett films of fluorine-containing side chain liquid crystal copolysiloxanes

H. Okamoto, S. Takenaka, J. Mu, 2000 .

Quaternary Ammonium (Hypo)iodite Catalysis for Enantioselective Oxidative Cycloetherification

H. Okamoto, K. Ishihara, M. Uyanik, 2010, Science.

Top-Emission Ultraviolet-Light-Emitting Diodes Containing Solution-Processed ZnO Nanocrystals

H. Okamoto, T. Toyama, H. Kawasaki, 2011 .

Blue light emission from a-C:H by thin film electroluminescence structure cell

H. Okamoto, Y. Hamakawa, T. Toyama, 1989 .

Optimum design and its experimental approach of a-Si//poly-Si tandem solar cell

C. Lim, H. Okamoto, Y. Hamakawa, 1994 .

Phase shift analysis of below-gap primary photocurrent in hydrogenated amorphous silicon

H. Okamoto, Y. Hamakawa, T. Kamada, 1986 .

Steady-state photoconductivity in amorphous semiconductors containing correlated defects

H. Okamoto, Y. Hamakawa, H. Kida, 1984 .

Novel light-trapping structure having smooth surface for silicon thin-film solar cell

H. Okamoto, T. Higuchi, T. Toyama, 2008, 2008 33rd IEEE Photovoltaic Specialists Conference.