Electrodynamic properties of aqueous spray-deposited SnO2:F films for infrared plasmonics

Abstract. Electrodynamic properties of fluorine-doped tin oxide films grown by aqueous-spray-based heterogeneous reaction on heated hydrophilic substrates were investigated with emphasis on applications to infrared plasmonics. These properties were correlated with physical ones such as crystallinity, dopant and electron concentrations, conductivity, and mobility. The degree of crystallinity for the nanocrystalline films increases with F concentration and growth temperature. The F concentration in the films is proportional to that in the starting solution. Electron concentration and Hall mobility rise more slowly with F concentration. At their highest, both F and electron concentrations are ∼2% of the Sn concentration. In more lightly doped films, the electron concentration significantly exceeds the F concentration. The achieved resistivity of the doped films is lower than for undoped SnO2 film by 20 to 750 times. The infrared complex permittivity spectrum shows a shift in plasma wavelength from 15 to 2  μm with more than two orders increase in F concentration.

[1]  Qing Shen,et al.  Optical absorption, photosensitization, and ultrafast carrier dynamic investigations of CdSe quantum dots grafted onto nanostructured SnO2 electrode and fluorine-doped tin oxide (FTO) glass , 2007 .

[2]  C. H. Bhosale,et al.  Properties of highly oriented spray-deposited fluorine-doped tin oxide thin films on glass substrates of different thickness , 2007 .

[3]  Jeffery Boardman,et al.  Electrical and Optical Properties of Fluorine Doped Tin Oxide Thin Films Prepared by Magnetron Sputtering , 2014 .

[4]  J. Teuscher,et al.  Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites , 2012, Science.

[5]  Ram S. Katiyar,et al.  Dynamics of the rutile structure. III. Lattice dynamics, infrared and Raman spectra of SnO2 , 1971 .

[6]  N. N. Greenwood,et al.  Chemistry of the elements , 1984 .

[7]  Daniel Wasserman,et al.  Towards nano-scale photonics with micro-scale photons: the opportunities and challenges of mid-infrared plasmonics , 2013 .

[8]  K. L. Chopra,et al.  Dopant effects in sprayed tin oxide films , 1982 .

[9]  Junhao Chu,et al.  Far-Infrared−Ultraviolet Dielectric Function, Lattice Vibration, and Photoluminescence Properties of Diluted Magnetic Semiconductor Sn1−xMnxO2/c-Sapphire Nanocrystalline Films , 2010 .

[10]  G. L. Sharma,et al.  High ethanol sensitivity in sol–gel derived SnO2 thin films , 1999 .

[11]  Suresh Sagadevan,et al.  Optical and Electrical Properties of Nanocrystalline SnO2 Thin Films Synthesized by Chemical Bath Deposition Method , 2015 .

[12]  A. L. Patterson.  The Scherrer Formula for X-Ray Particle Size Determination , 1939 .

[13]  A. Boltasseva,et al.  Epsilon-Near-Zero Al-Doped ZnO for Ultrafast Switching at Telecom Wavelengths: Outpacing the Traditional Amplitude-Bandwidth Trade-Off , 2015 .

[14]  P. F. Robusto,et al.  Optical Measurements of the Surface Plasmon of Indium-Tin Oxide , 1990 .

[15]  David C. Look,et al.  Investigation of plasmon resonance tunneling through subwavelength hole arrays in highly doped conductive ZnO films , 2015 .

[16]  Kevin D. Leedy,et al.  Plasmon resonance and perfect light absorption in subwavelength trench arrays etched in gallium-doped zinc oxide film , 2015 .

[17]  A. Lavrinenko,et al.  Ultra-thin films for plasmonics: a technology overview , 2015 .

[18]  N. Park,et al.  Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9% , 2012, Scientific Reports.

[19]  Hirata,et al.  Concentration dependence of optical phonons in the TiO2-SnO2 system. , 1996, Physical review. B, Condensed matter.

[20]  A. Muraviev,et al.  Planar integrated plasmonic mid-IR spectrometer , 2011, Optical Engineering + Applications.

[21]  V. Shalaev,et al.  Alternative Plasmonic Materials: Beyond Gold and Silver , 2013, Advanced materials.

[22]  Robert E. Peale,et al.  Infrared surface polaritons on bismuth , 2015 .

[23]  S. Major,et al.  Effect of heavy doping in SnO2:F films , 1996, Journal of Materials Science.

[24]  David C. Look,et al.  Application of highly conductive ZnO to the excitation of long-range plasmons in symmetric hybrid waveguides , 2013 .

[25]  Robert E. Peale,et al.  Optical and electrical properties of tin oxide-based thin films prepared by streaming process for electrodeless electrochemical deposition , 2015 .

[26]  Robert E. Peale,et al.  Organic and inorganic correlations for Northwest Africa 852 by synchrotron‐based Fourier transform infrared microspectroscopy , 2015 .

[27]  Andrew G. Glen,et al.  APPL , 2001 .

[28]  Lucimara S. Roman,et al.  Strong inter-conduction-band absorption in heavily fluorine doped tin oxide , 2008 .

[29]  Alex Zunger,et al.  Origins of coexistence of conductivity and transparency in SnO(2). , 2002, Physical review letters.

[30]  K. Ramamurthi,et al.  Studies on micro-structural and electrical properties of spray-deposited fluorine-doped tin oxide thin films from low-cost precursor , 2005 .

[31]  Robert E. Peale,et al.  Fluorine-doped tin oxides for mid-infrared plasmonics , 2015 .

[32]  H. Lezec,et al.  Extraordinary optical transmission through sub-wavelength hole arrays , 1998, Nature.

[33]  Francesco Michelotti,et al.  Plasmon polaritons in the near infrared on fluorine doped tin oxide films. , 2009, Optics express.

[34]  C. H. Bhosale,et al.  Effect of solvent ratio on the properties of highly oriented sprayed fluorine-doped tin oxide thin films , 2007 .

[35]  Guanghou Wang,et al.  Far-infrared absorption spectra and properties of SnO2 nanorods , 2003 .

[36]  Yongling Wu,et al.  Solvothermal synthesis of Sb:SnO2 nanoparticles and IR shielding coating for smart window , 2015 .

[37]  Alberto Piqué,et al.  Transparent conducting F-doped SnO2 thin films grown by pulsed laser deposition , 2008 .

[38]  Richard A. Soref,et al.  Tunable short- to mid-infrared perfectly absorbing thin films utilizing conductive zinc oxide on metal , 2015 .