G. Ramakrishna

发表

Beads on a Chain Fluorescent Oligomeric Materials: Interactions of Conjugated Organic Cross-Linkers with Silsesquioxane Cages.

S. Mahbub, Sukanya Saha, G. Ramakrishna, 2021, The journal of physical chemistry. B.

Unusual Solvent Effects on Optical Properties of Bi-Icosahedral Au25 Clusters

G. Wiederrecht, G. Ramakrishna, V. D. Thanthirige, 2017 .

Novel fully screen printed flexible electrochemical sensor for the investigation of electron transfer between thiol functionalized viologen and gold clusters

B. B. Narakathu, Binu B. Narakathu, Massood Z. Atashbar, 2013 .

Critical size for the observation of quantum confinement in optically excited gold clusters.

T. Goodson, Dongil Lee, G. Ramakrishna, 2010, Journal of the American Chemical Society.

Enhanced luminescence of Au22(SG)18 nanoclusters via rational surface engineering.

Dongil Lee, Kyunglim Pyo, G. Ramakrishna, 2016, Nanoscale.

Theoretical investigation of size, shape, and aspect ratio effect on the LSPR sensitivity of hollow-gold nanoshells.

G. Ramakrishna, M. Shabaninezhad, 2019, The Journal of chemical physics.

Two-Photon Enhancement in Organic Nanorods

R. Twieg, T. Goodson, G. Ramakrishna, 2008 .

Ultrabright Luminescence from Gold Nanoclusters: Rigidifying the Au(I)-Thiolate Shell.

Dongil Lee, Kyunglim Pyo, G. Ramakrishna, 2015, Journal of the American Chemical Society.

Interparticle electromagnetic coupling in assembled gold-necklace nanoparticles.

J. Zou, T. Goodson, G. Ramakrishna, 2007, Journal of the American Chemical Society.

Optically excited acoustic vibrations in quantum-sized monolayer-protected gold clusters.

T. Goodson, Dongil Lee, G. Ramakrishna, 2010, ACS nano.

Size‐Dependent Light Harvesting from Nonthermalized Excited States of Gold Clusters

Dongil Lee, Kyunglim Pyo, Sukanya Saha, 2021 .

Dynamics of Interfacial Charge Transfer Emission in Small Molecule Sensitized TiO2 Nanoparticles: Is It Localized or Delocalized?

G. Ramakrishna, Shankar Varaganti, 2010 .

Interfacial electron transfer between the photoexcited porphyrin molecule and TiO2 nanoparticles: effect of catecholate binding.

Amitava Das, H. Ghosh, S. Verma, 2006, The journal of physical chemistry. B.

Directional electron transfer in chromophore-labeled quantum-sized Au 25 clusters: Au25 as an electron donor

Dongil Lee, G. Ramakrishna, C. Jun, 2010 .

Temperature-Dependent Optical Absorption Properties of Monolayer-Protected Au25 and Au38 Clusters

R. Jin, Huifeng Qian, G. Ramakrishna, 2011 .

Optical and Photochemical Properties of Sodium Dodecylbenzenesulfonate (DBS)-Capped TiO2 Nanoparticles Dispersed in Nonaqueous Solvents

H. Ghosh, G. Ramakrishna, 2003 .

Crystal Structure of Au36-xAgx(SPh-tBu)24 Nanoalloy and the Role of Ag Doping in Excited State Coupling

A. Oliver, A. Fortunelli, M. Stener, 2019 .

Effect of surface modification on back electron transfer dynamics of dibromo fluorescein sensitized TiO2 nanoparticles.

A. Das, H. Ghosh, G. Ramakrishna, 2004, Langmuir : the ACS journal of surfaces and colloids.

Temperature-Dependent Absorption and Ultrafast Exciton Relaxation Dynamics in MAu24(SR)18 Clusters (M = Pt, Hg): Role of the Central Metal Atom

Dongil Lee, G. Ramakrishna, V. D. Thanthirige, 2016 .

Temperature-Dependent Absorption and Ultrafast Luminescence Dynamics of Bi-Icosahedral Au25 Clusters

G. Ramakrishna, V. D. Thanthirige, E. Sinn, 2013 .

Effect of Particle Size on the Reactivity of Quantum Size ZnO Nanoparticles and Charge-Transfer Dynamics with Adsorbed Catechols

H. Ghosh, G. Ramakrishna, 2003 .

Dynamics of Interfacial Electron Transfer from Photoexcited Quinizarin (Qz) into the Conduction Band of TiO2 and Surface States of ZrO2 Nanoparticles

H. Ghosh, G. Ramakrishna, Ajay Singh, 2004 .

Ultrafast Optical Study of Small Gold Monolayer Protected Clusters: A Closer Look at Emission†

B. D. Chandler, T. Goodson, G. Ramakrishna, 2010 .

Intrinsically fluorescent gold nanoclusters stabilized within a copper storage protein that follow the Irving-Williams trend in metal ion sensing.

K. Artyushkova, G. Ramakrishna, S. Chakraborty, 2019, The Analyst.

Theoretical investigation of optical properties of embedded plasmonic nanoparticles

A. Kayani, G. Ramakrishna, M. Shabaninezhad, 2021, Chemical Physics.

Ultrafast optical excitations in supramolecular metallacycles with charge transfer properties.

Daniel C. Flynn, P. Stang, T. Goodson, 2010, Journal of the American Chemical Society.

Bulky t-Butyl Thiolated Gold Nanomolecular Series: Synthesis, Characterization, Optical Properties, and Electrocatalysis

G. Ramakrishna, S. Chakraborty, Tanya C. Jones, 2018, The Journal of Physical Chemistry C.

Ultrafast Intersystem Crossing: Excited State Dynamics of Platinum Acetylide Complexes

Augustine Urbas, Theodore Goodson, Thomas M. Cooper, 2009 .

Single-color pseudorotaxane-based temperature sensing

G. Ramakrishna, Isurika R. Fernando, Gellert Mezei, 2010 .

Unique Energy Transfer in Fluorescein-Conjugated Au22 Nanoclusters Leading to 160-Fold pH-Contrasting Photoluminescence.

G. Wiederrecht, N. Ly, S. Joo, 2018, The journal of physical chemistry letters.

Oligothiophene dendrimers as new building blocks for optical applications.

T. Goodson, G. Ramakrishna, A. Bhaskar, 2008, The journal of physical chemistry. A.

Giant thienylene-acetylene-ethylene macrocycles with large two-photon absorption cross section and semishape-persistence.

M. Iyoda, T. Goodson, M. Imamura, 2008, Journal of the American Chemical Society.

A ‘turn-on’ fluorescent sensor for the selective detection of cobalt and nickel ions in aqueous media

G. Ramakrishna, E. Sinn, Carla S. Eribal, 2011 .

Single- and multiphoton turn-on fluorescent Fe(3+) sensors based on bis(rhodamine).

Guda Ramakrishna, Ekkehard Sinn, Shankar Varaganti, 2010, The journal of physical chemistry. B.

Quantum-sized gold clusters as efficient two-photon absorbers.

T. Goodson, Dongil Lee, G. Ramakrishna, 2008, Journal of the American Chemical Society.

Photophysics and Ultrafast Relaxation Dynamics of the Excited States of Dimethylaminobenzophenone

H. Ghosh, G. Ramakrishna, Ajay Singh, 2004 .

Pyrene-Functionalized Fluorescent Nanojars: Synthesis, Mass Spectrometric, and Photophysical Studies

G. Ramakrishna, Gellert Mezei, Vageesha W Liyana Gunawardana, 2021, ACS omega.

Two-photon absorption properties of chromophores in micelles: electrostatic interactions.

G. Ramakrishna, S. Bairu, 2013, The journal of physical chemistry. B.

Ultrafast Interfacial Charge-Transfer Dynamics in a Donor-π-Acceptor Chromophore Sensitized TiO2 Nanocomposite

Jameel A. Hasan, G. Wiederrecht, L. Giribabu, 2013 .

Energy Gap Law for Exciton Dynamics in Gold Cluster Molecules.

Dongil Lee, Kyunglim Pyo, G. Ramakrishna, 2017, The journal of physical chemistry letters.

Investigation of two-photon absorption properties in branched alkene and alkyne chromophores.

Theodore Goodson, Eric Van Stryland, Zhikuan Lu, 2006, Journal of the American Chemical Society.

Ultrafast Intramolecular Electronic Energy-Transfer Dynamics in a Bichromophoric Molecule†

H. Ghosh, T. Mukherjee, G. Ramakrishna, 2004 .

Unique Ultrafast Visible Luminescence in Monolayer-Protected Au25 Clusters

T. Goodson, Dongil Lee, G. Ramakrishna, 2010 .

The Missing Link: Au191(SPh-tBu)66 Janus Nanoparticle with Molecular and Bulk-Metal-like Properties.

U. Landman, R. Whetten, A. Fortunelli, 2020, Journal of the American Chemical Society.

Ultrafast Electron Dynamics in Thiolate-Protected Plasmonic Gold Clusters: Size and Ligand Effect

Dongil Lee, Kyunglim Pyo, G. Ramakrishna, 2019, The Journal of Physical Chemistry C.

Information on quantum states pervades the visible spectrum of the ubiquitous Au144(SR)60 gold nanocluster

R. Whetten, X. López-Lozano, G. Ramakrishna, 2014, Nature Communications.

Ultrafast dynamics and excited state deactivation of [Ru(bpy)2Sq]+ and its derivatives.

Amitava Das, H. Ghosh, G. Ramakrishna, 2006, The journal of physical chemistry. B.

Nonlinear optical properties of quantum sized gold clusters

Junhyung Kim, Theodore G. Goodson, Oleg Varnavski, 2008, Organic Photonics + Electronics.

Ultrafast excited state relaxation dynamics of branched donor-pi-acceptor chromophore: evidence of a charge-delocalized state.

T. Goodson, G. Ramakrishna, A. Bhaskar, 2006, The journal of physical chemistry. B.

Excited-state deactivation of branched two-photon absorbing chromophores: a femtosecond transient absorption investigation.

Theodore Goodson, Guda Ramakrishna, T. Goodson, 2007, The journal of physical chemistry. A.

Electron injection into the surface states of ZrO2 nanoparticles from photoexcited quinizarin and its derivatives: effect of surface modification.

H. Ghosh, T. Mukherjee, G. Ramakrishna, 2005, The journal of physical chemistry. B.

Slow Back Electron Transfer in Surface-Modified TiO2 Nanoparticles Sensitized by Alizarin

H. Ghosh, G. Ramakrishna, Ajay Singh, 2004 .

Interfacial charge transfer dynamics in small molecule-modified TiO2 nanoparticles

Guda Ramakrishna, Shankar Varaganti, Edwin Mghangha, 2010, NanoScience + Engineering.

Au21S(SAdm)15: Crystal Structure, Mass Spectrometry, Optical Spectroscopy, and First-Principles Theoretical Analysis

Kevin J. Gagnon, A. Fortunelli, M. Stener, 2017 .

Ultrafast intermolecular hydrogen bond dynamics in the excited state of fluorenone.

Tapan K. Ghanty, Guda Ramakrishna, H. Ghosh, 2005, The journal of physical chemistry. A.

MATLAB package for discrete dipole approximation by graphics processing unit: Fast Fourier Transform and Biconjugate Gradient

G. Ramakrishna, M. Awan, M. Shabaninezhad, 2021 .

Photoluminescence enhancement of perovskites nanocomposites using ion implanted silver nanoparticles

A. Kayani, S. Iqbal, G. Ramakrishna, 2020 .

Theoretical Investigation of Plasmonic Properties of Quantum-Sized Silver Nanoparticles

G. Ramakrishna, M. Shabaninezhad, 2019, Plasmonics.

Au279(SR)84: The Smallest Gold Thiolate Nanocrystal That Is Metallic and the Birth of Plasmon.

A. Fortunelli, M. Stener, G. Ramakrishna, 2018, The journal of physical chemistry letters.

Au21S(SAdm)15: An Anisotropic Gold Nanomolecule. Optical and Photoluminescence Spectroscopy and First-Principles Theoretical Analysis.

Kevin J. Gagnon, A. Fortunelli, M. Stener, 2017, The journal of physical chemistry letters.

Enhancement of two-photon absorption cross-section in macrocyclic thiophenes with cavities in the nanometer regime.

P. Bäuerle, T. Goodson, E. Mena‐Osteritz, 2007, The journal of physical chemistry. B.

Efficient electron injection from twisted intramolecular charge transfer (TICT) state of 7-diethyl amino coumarin 3-carboxylic acid (D-1421) dye to TiO2 nanoparticle

H. Ghosh, G. Ramakrishna, 2002 .

Dynamics of Back-Electron Transfer Processes of Strongly Coupled Triphenyl Methane Dyes Adsorbed on TiO2 Nanoparticle Surface as Studied by Fast and Ultrafast Visible Spectroscopy

H. Ghosh, J. Mittal, G. Ramakrishna, 2001 .

Zinc Sensing via Enhancement of Two-Photon Excited Fluorescence

Robert J. Twieg, Theodore Goodson, Guda Ramakrishna, 2007 .

Information on quantum states pervades the visible spectrum of the ubiquitous Au144(SR)60 gold nanocluster

R. Whetten, G. Ramakrishna, H.-Ch. Weissker, 2014, Nature Communications.

Strongly coupled ruthenium-polypyridyl complexes for efficient electron injection in dye-sensitized semiconductor nanoparticles.

Amitava Das, G Ramakrishna, Amitava Das, 2005, The journal of physical chemistry. B.

Effect of molecular structure on interfacial electron transfer dynamics of 7-N,N-dimethyl coumarin 4-acetic acid (DMACA) and 7-hydroxy coumarin 4-acetic acid (HCA) sensitized TiO2 and ZrO2 nanoparticles

H. Ghosh, G. Ramakrishna, Ajay Singh, 2004 .

Synthesis and Photophysical Properties of Light-Harvesting Gold Nanoclusters Fully Functionalized with Antenna Chromophores.

G. Wiederrecht, Dongil Lee, Kyunglim Pyo, 2021, Small.

Dynamics and two-photon absorption properties of chromophore functionalized semiconductor nanoparticles

Guda Ramakrishna, Shankar Varaganti, Mathias Gessesse, 2009, Organic Photonics + Electronics.

Determination of back electron transfer rate from the surface states of quinizarin-sensitized ZrO2 nanoparticles by monitoring charge transfer emission.

H. Ghosh, G. Ramakrishna, 2004, Langmuir.