Characterization of thin-film copper/cuprous oxide photovoltaic cell by thermal oxidation.
Аннотация
Copper-Cuprous Oxide (Cu/Cu₂O) thin film photovoltaic cells were fabricated using the thermal oxidation method for Cu₂O deposition. Copper sheets approximately 1 mm thick were oxidized in air at temperatures ranging from 900°C to 1050°C. Oxide films formed at temperatures between 1000°C and 1050°C consisted entirely of Cu₂O and exhibited p-type semiconductor behavior. In contrast, films grown below 900°C consisted of a mixture including cupric oxide (CuO), which is not strictly considered in this report.
The junctions on Cu₂O were prepared using a graphite carbon paste method, with paste obtained from used dry cells. The current–voltage and capacitance–voltage characteristics of the resulting Schottky diode were measured and presented. The results indicate that cells of practical interest will have an oxide layer approximately one micron thick, grown at relatively high temperatures. It was also concluded that the copper/cuprous oxide system fabricated by thermal oxidation behaves as a metal–semiconductor (Schottky) diode, exhibiting all characteristic diode properties.
Скачивания
Библиографические ссылки
Berezin, A. A., & Weichman, F. I. (1981). Solid state communication, 37, 157.
Boltaks, A. I. (1961). Diffusion in semiconductors (p. 263). Intosearch LTD, London.
Fortin, E., & Masson, D. (1982). Photovoltaic effects in Cu/Cu₂O solar cells grown by anodic oxidation. Solid State Electronics, 25(4), 281–283. ISSN 0036-1191.
Fernando, C. A. N., & Wetthasinghe, S. K. (2000). Investigation of photochemical characteristics of n-type Cu₂O films. Solar Energy Materials & Solar Cells, 63, 299–308.
Ikata, E. S. (1987). Characterization of cuprous oxide by anodic oxidation (Unpublished M.Sc thesis). University of Port Harcourt, Choba.
Jayatissa, A. H., Guo, K., & Jayasuriya, A. C. (2009). Fabrication of cuprous and cupric oxide thin films by heat treatment. Applied Surface Science, 255(23), 9474–9479. ISSN 0169-4332.
Kosugi, T., & Kaneko, S. (1998). Journal of the American Ceramic Society, 81, 3117.
Liang, B. J., Kishi, N., Soga, T., & Jimbo, T. (2010). Applied Surface Science, 257, 62.
Liang, B. J., Kishi, N., Soga, T., & Jimbo, T. (2012). Thin cuprous oxide films prepared by thermal oxidation of copper foil with water. Nagoya Institute of Technology Repository.
Musa, A. O., Akomolafe, T., & Carter, M. J. (1998). Production of cuprous oxide, a solar cell material, by thermal oxidation and a study of its physical and electrical properties. Solar Energy Materials and Solar Cells, 51(3-4), 305–316. ISSN 0927-0248.
Philips, R. J., Shane, M. J., & Switzer, J. A. (1989). Journal of Materials Research, 4, 923.
Pacheco, M. J. G., Morales-Sanchez, J. E., Fernandez, J., & Ruiz, F. (2010). Synthesis of copper nanoparticles using soybeans as a chelant agent. Materials Letters, 64(12), 1361–1364.
Rakhshani, A. E. (1986). Preparation, characteristics and photovoltaic properties of cuprous oxide—a review. Solid-State Electronics, 29, 7.
Smith, M., Golovac, V., Ajimovic, L. J., & Lucic-Lavcevic. (1995). Surface Science, 171.
Switzer, J. A. (1986). Journal of the Electrochemical Society, 133, 722.
