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Optical and electrical properties of tin oxide-based thin films prepared by streaming process for electrodeless electrochemical deposition

  • Farnood Khalilzadeh-Rezaie (a1), Isaiah O. Oladeji (a2), Gbadebo. T. Yusuf (a3), Janardan Nath (a1), Nima Nader (a4) (a5), Shiva Vangala (a4) (a5), Justin W. Cleary (a4), Winston V. Schoenfeld (a6) and Robert E. Peale (a1)...


Transparent conducting thin-films of SnO2: F were grown on preheated glass, Al2O3 coated glass, and quartz substrates by Streaming Process for Electrodeless Electrochemical Deposition (SPEED). Stannic chloride (SnCl4) and ammonium fluoride (NH4F) dissolved in a mixture of deionized water and organic solvents were used as precursors. The preheated substrate temperature was varied between 440 and 500 °C. High quality SnO2:F films were grown at all the substrate temperatures studied. The resulting typical film thickness was 250 nm. X-ray diffraction shows that the grown films are polycrystalline SnO2 with a tetragonal crystal structure. The average optical transmission of the films was around 93% throughout the wavelength range 400 to 1000 nm. The lowest electrical resistivity achieved was 6 × 10-4 Ω-cm. The Hall measurements showed that the film is an n-type semiconductor, with carrier mobility of 8.3 cm2/V-s, and carrier concentration of 1 × 1021 cm-3. The direct bandgap was determined to be 4.0 eV from the transmittance spectrum.



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[1] Ginley, D.S., Bright, C., Transparent Conducting Oxides, MRS Bulletin, 25 (2000) 1518.
[2] Coutts, T.J., Mason, T.O., Perkins, J., Ginley, D.S., Transparent conducting oxides: status and opportunities in basic research, Proc. Electrochem. Soc, 99 (1999) 274288.
[3] Stadler, A., Transparent conducting oxides—An up-to-date overview, Materials, 5 (2012) 661683.
[4] Liu, H., Avrutin, V., Izyumskaya, N., Özgür, Ü., Morkoç, H., Transparent conducting oxides for electrode applications in light emitting and absorbing devices, Superlattices and Microstructures, 48 (2010) 458484.
[5] Wang, Y., Wu, X., Li, Y., Zhou, Z., Mesostructured SnO2 as sensing material for gas sensors, Solid-State Electronics, 48 (2004) 627632.
[6] Rakhshani, A., Makdisi, Y., Ramazaniyan, H., Electronic and optical properties of fluorine-doped tin oxide films, Journal of Applied Physics, 83 (1998) 10491057.
[7] Elangovan, E., Ramamurthi, K., Studies on micro-structural and electrical properties of spray-deposited fluorine-doped tin oxide thin films from low-cost precursor, Thin solid films, 476 (2005) 231236.
[8] Oladeji, I.O., Film growth system and method, US Patent 7,793,611 (2010).
[9] Oladeji, I.O., Chow, L., Optimization of chemical bath deposited cadmium sulfide thin films, Journal of the Electrochemical Society, 144 (1997) 23422346.
[10] Oladeji, I.O., Method for fabricating copper-containing ternary and quaternary chalcogenide thin films, in, US Patent 7,972,899 (2011).
[11] Rezaie, F.K., Panjwani, D., Nath, J., Fredricksen, C.J., Oladeji, I.O., Peale, R.E., Junctionless thin-film ferroelectric oxides for photovoltaic energy production, in: SPIE Sensing Technology+ Applications, International Society for Optics and Photonics, 2014, pp. 91150Q-91150Q-91157.
[12] Huaman, J.L.C., Sato, K., Kurita, S., Matsumoto, T., Jeyadevan, B., Copper nanoparticles synthesized by hydroxyl ion assisted alcohol reduction for conducting ink, Journal of Materials Chemistry, 21 (2011) 70627069.
[13] Varghese, O.K., Malhotra, L., Sharma, G., High ethanol sensitivity in sol–gel derived SnO2 thin films, Sensors and Actuators B: Chemical, 55 (1999) 161165.
[14] Miao, D., Zhao, Q., Wu, S., Wang, Z., Zhang, X., Zhao, X., Effect of substrate temperature on the crystal growth orientation of SnO2: F thin films spray-deposited on glass substrates, Journal of Non-Crystalline Solids, 356 (2010) 25572561.
[15] Sujatha, C., Rao, G.M., Uthanna, S., Characteristics of indium tin oxide films deposited by bias magnetron sputtering, Materials Science and Engineering: B, 94 (2002) 106110.
[16] Agashe, C., Mahamuni, S., Competitive effects of film thickness and growth rate in spray pyrolytically deposited fluorine-doped tin dioxide films, Thin Solid Films, 518 (2010) 48684873.
[17] Moss, T.S., Optical properties of semi-conductors, Butterworths, London, 1959.



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