Relevance of Microstructure on Optical Properties of Thermally Evaporated Indium Oxide Thin Films

DOI: 10.4236/oalib.1101200   PDF   HTML   XML   664 Downloads   999 Views  

Abstract

Nanocrystalline indium oxide thin films of thickness about 100 nm have been deposited using thermal vacuum evaporation technique at room temperature on glass and quartz substrates and subsequently annealed at different temperatures (150℃, 200℃, 250℃, 300℃, 350℃, 500℃ and 700℃) for 2 hr and 4 hr in the oxygen atmosphere. Structural and optical properties of these films have been investigated by using XRD, SEM, HRTEM, AFM, UV-Visible, and photoluminescence spectroscopy. Response of gas towards the thin films is obtained. X-ray diffraction studies of deposited and annealed films show the transformation of indium into indium oxide thin films at 300℃. UV-visible and PL studies reveal the band gap of 3.7 eV. The transparency of thin films is about 83%. Gas response is obtained 3.55 for ethanol vapours. Structural features associated with the indium oxide thin films have been correlated with optical parameters.

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Jain, P. , Singh, S. , Srivastava, A. , Pundir, S. and Siddiqui, A. (2015) Relevance of Microstructure on Optical Properties of Thermally Evaporated Indium Oxide Thin Films. Open Access Library Journal, 2, 1-15. doi: 10.4236/oalib.1101200.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Beena, D., Lethy, K.J., Vinodkumar, R., Detty A.P., Mahadevanpillai, V.P. and Ganesan, V. (2011) Photoluminescence in Laser Ablated Nanostructured Indium Oxide Thin Films. Journal of Optoelectronics and Advanced Materials, 5, 1-11.
[2] Wang, C.Y., Cimalla, V., Kups, T., Rohlig, C.C., Stauden, T., Ambacher, O., Kunzer, M., Passow, T., Schirmacher, W., Pletschen W. and Kohler, K. (2007) Integration of In2O3 Nanoparticle Based Ozone Sensors with GaInN/GaN Light Emitting Diodes. Applied Physics Letters, 91, Article ID: 103509. http://dx.doi.org/10.1063/1.2779971
[3] Harvey, S.P., Mason, T.O., Gassenbauer, Y., Schafranek, R. and Klein, A. (2006) Surface versus Bulk Electronic/Defect Structures of Transparent Conducting Oxides: I. Indium Oxide and ITO. Journal of Physics D: Applied Physics, 39, 3959-3968.
http://dx.doi.org/10.1088/0022-3727/39/18/006
[4] Hotovy, I., Kups, T., Hotovy, J., Liday, J., Buc, D. and Caplovicova, M. (2010) Structural Evolution of Sputtered Indium Oxide Thin Films. Journal of Electrical Engineering, 61, 382-385.
[5] Huang, M.H., Wu, Y., Feick, H., Tran, N., Weber, E. and Yang, P.(2001) Catalytic Growth of Zinc Oxide Nanowires by Vapor Transport. Advanced Materials, 13, 113-116.
http://dx.doi.org/10.1002/1521-4095(200101)13:2<113::AID-ADMA113>3.0.CO;2-H
[6] Gu, F., Wang, S.F., Lu, M.K., Cheng, X.F., Liu, S.W., Zhou, G.J., Xu, D. and Yuan, D.R. (2004) Luminescence of SnO2 Thin Films Prepared by Spin-Coating Method. Journal of Crystal Growth, 262, 182-185.
http://dx.doi.org/10.1016/j.jcrysgro.2003.10.028
[7] Pramod, N.G., Pandey, S.N. and Sahay, P.P. (2012) Structural, Optical and Methanol Sensing Properties of Sprayed In2O3 Nanoparticle Thin Films. Ceramics International, 38, 4151-4158.
http://dx.doi.org/10.1016/j.ceramint.2012.01.075
[8] Guha, P., Kar, S. and Chaudhuri, S. (2004) Direct Synthesis of Single Crystalline In2O3 Nanopyramids and Nanocolumns and Their Photoluminescence Properties. Applied Physics Letters, 85, 3851-3853.
http://dx.doi.org/10.1063/1.1808886
[9] Jia, H.B., Zhang, Y., Chen, X.H., Shu, J., Luo, X.H., Zhang, Z.S. and Yu, D.P. (2003) Efficient Field Emission from Single Crystalline Indium Oxide Pyramids. Applied Physics Letters, 82, 4146-4148.
http://dx.doi.org/10.1063/1.1582354
[10] Li, S.Q., Liang, Y.X. and Wang, T.H. (2005) Electric-Field-Aligned Vertical Growth and Field Emission Properties of In2O3 Nanowires. Applied Physics Letters, 87, Article ID: 143104.
http://dx.doi.org/10.1063/1.2076438
[11] Jeong, J.S., Lee, J.Y., Lee, C.J., An, S.J. and Yi, G.C. (2004) Synthesis and Characterization of High-Quality In2O3 Nanobelts via Catalyst-Free Growth Using a Simple Physical Vapor Deposition at Low Temperature. Chemical Physics Letters, 384, 246-250.
http://dx.doi.org/10.1016/j.cplett.2003.12.027
[12] Wu, X.C., Hong, J.M., Han, Z.J. and Tao, Y.R. (2003) Fabrication and Photoluminescence Characteristics of Single Crystalline In2O3 Nanowires. Chemical Physics Letters, 373, 28-32.
http://dx.doi.org/10.1016/S0009-2614(03)00582-7

  
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