Preparation of Tin Oxide Nanometer Thin Films by Hydrothermal Method

Abstract:

Given the shortage of energy reserves, new energy sources must be identified. In this regard, improving the efficiency of solar cell conversion and simplifying the solar cell technology have become the focus of research. In this study, tin oxide nanometer thin film was fabricated on FTO conductive glass as photocathode through hydrothermal method. The synthesis condition was regulated, and performance test was also conducted. Results show that the crystallization driving force, crystallization rate, and grain size of tin dioxide crystal increase with increasing alkali ratio, leading to disorganized accumulation of tin oxide. Under prolonged holding time, tin oxide crystal became complete, and the surface area of the crystal increased. The crystallization driving force and rate also increased with increasing salt concentration and accompanied by clutter of tin oxide. The optimized process condition included 1:4 molar ratio of salt to alkali, 0.05 mol/L salt concentration, 200 °C reaction temperature, and 8 days of reaction. The highest specific surface area of the tin oxide nanometer film was obtained under the optimized condition.

• Periodical: Solid State Phenomena (Volume 279)
• Pages: 197-201
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.279.197
• Online since: August 2018
• Authors: Fang Wang, Yang Chao, Min Han Xu, Rui Hua Wang, Ai Xia Chen, Ru Xin Deng, Du Juan Chang, Jie Guang Song, Yue Ning Qin
• Keywords: Hydrothermal Method, Synthetic Conditions, Thin Films, TiN Oxide

References

[1] W. Y. Shi, B. S. Peng, Y. Y. Guo, Synthesis of asymmetric zinc phthalocyanine with bulky diphenylthiophenol substituents and its photovoltaic performance for dye-sensitized solar cells, J. Photochem. Photobiol. A: Chem. 321 (2016) 248-256.

DOI: 10.1016/j.jphotochem.2016.02.009

[2] P. T. Zhang, Z. Q. Hu, Y. Wang, Enhanced photovoltaic properties of dye-sensitized solar cell based on ultrathin 2D TiO2 nanostructures, Appl. Surf. Sci. 368 (2016) 403-408.

DOI: 10.1016/j.apsusc.2016.02.010

[3] J. T. Park, C. S. Lee, J. H. Kim, High performance electrocatalyst consisting of CoS nanoparticles on an organized mesoporous SnO2 film: its use as a counter electrode for Pt-free, dye-sensitized solar cells, Nanoscale 7 (2015) 670-678.

DOI: 10.1039/c4nr05779a

[4] I.Y. Bu, J. Zheng, A new type of counter electrode for dye sensitized solar cells based on solution processed SnO2 and activated carbon, Mater. Sci. Semicond. Process. 39(2015) 223-228.

DOI: 10.1016/j.mssp.2015.04.029

[5] E. M. Jin, J. Y. Park, H. B. Gu, S. M. Jeong, Synthesis of SnO2 hollow fiber using kapok biotemplate for application in dye-sensitized solar cells, Mater. Lett. 159 (2015) 321-324.

DOI: 10.1016/j.matlet.2015.07.023

[6] A. Abdelkrim, S. Rahmane, O. Abdelouahab, Effect of solution concentration on the structural, optical and electrical properties of SnO2 thin films prepared by spray pyrolysis, Int. J. Light Electron Optic. 127 (2016) 2653-2658.

DOI: 10.1016/j.ijleo.2015.11.232

[7] Y. G. Zhang, P. J. Li, SnO2 films: In-situ template-sacrificial growth and photovoltaic property based on SnO2/poly(3-hexyl-thiophene) for hybrid solar cell. Mater. Res. Bull. 70 (2015) 579-583.

DOI: 10.1016/j.materresbull.2015.05.031

[8] W. W. Sun, X. H. Sun, T. Peng, Y. M. Liu, H. W. Zhu, S. S. Guo, X. Z. Zhao, A low cost mesoporous carbon/SnO2/TiO2 nanocomposite counter electrode for dye-sensitized solar cells, J. Power Sources 201 (2012) 402-407.

DOI: 10.1016/j.jpowsour.2011.10.097

[9] R. Li, Y. Zhao, R.E. Hou, Enhancement of power conversion efficiency of dye sensitized solar cells by modifying mesoporous TiO2 photoanode with Al-doped TiO2 layer, J. Photochem. Photobiol. A: Chem. 319 (2016) 62-69.

DOI: 10.1016/j.jphotochem.2016.01.002

[10] J.G. Song, L. Hua, Q. Shen, Effect of pH value on the properties of SnO2 nano-cystalline for dye sensitized solar cells, Key Eng. Mater. 633 (2015) 273-276.

DOI: 10.4028/www.scientific.net/kem.633.273