Abstract
Photoconductivity response spectra of polycrystalline Ag0.5InSe2 thin films are reported. The peak and shoulders observed in the photoconductivity spectra are attributed to transitions from valence sub-bands to the conduction band. From the room-temperature spectra, the band-gap energies, spin-orbit and crystal-field parameters are determined. The temperature coefficient of the photoconductivity peak energy is 1.25 × 10-4eVK-1 in the temperature range 60–100 K. The sign of the temperature coefficient reverses around 100 K and the value is -1.23 × 10-4eVK-1 in the temperature range 100–303 K. The variations of photocurrent with applied bias voltage, illumination intensity and temperature are also studied. © 2001 Kluwer Academic Publishers
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References
J. L. Shay and J. H. Wernick, “Ternary Chalcopyrite Semiconductors: Growth, Electronic Properties and Applications” (Pergamon Press, Oxford, 1975).
T. F. Ciszek, J. Cryst. Growth, 79 (1986) 689.
T. F. Ciszek, R. Bacewicz, J. R. Durrant, S. K. Deb and D. Dunlavy, Proceedings of the Nineteenth Photovoltaic Specialists Conference, New Orleans, LA, (IEEE, New York, 1987) p. 1448.
D. G. Kilday, G. Margaritondo, T. F. Ciszek, S. K. Deb, S. H. Wei and A. Zunger, Phys. Rev. B 36 (1987) 9388.
R. Bacewicz, T. F. Ciszek, J. R. Durrant, D. Dunlavy and S. K. Deb, Solar Energy Research Institute [SERI] Proceedings of the Polycrystalline Thin Film Program Meeting, July 20–22, 1987, Lakewood, Colorado, (SERI ICP-211-3171; DE87001169, 1987) p. 149.
V. F. Gremenok, I. V. Bodnar, I. Martil, F. L. Martines, S. L. Sergeev-Nekrasov and I. A. Victorov, Diffusion and Defect Data Part-B (Solid State Phenomena) 67–68 (1999) 361.
Y. Satyanarayana Murthy, Ph.D. Thesis, Sri Venkateswara University, Tirupati, India (1993).
G. Venkata Rao, G. Hema Chandra, O. M. Hussain, S. Uthanna and B. Srinivasulu Naidu, communicated to “Vacuum”.
L. Artus, Y. Bertrand and C. Ance, J. Phys. C. Solid State Phys. 19 (1986) 5937.
B. Tell and P. M. Bridenbaugh, Phys. Rev. B 12 (1975) 3330.
J. E. Jaffe and A. Zunger, ibid. 29 (1984) 1882.
R. H. Bube, “Photoconductivity of Solids” (John Wiley & Sons, Inc., New York, 1960) p. 238.
D. Long, “Energy Bands in Semiconductors” (Interscience, New York, 1968) p. 50.
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Rao, G.V., Chandra, G.H., Hussain, O.M. et al. Photoconductive response of polycrystalline Cu0.5Ag0.5InSe2 thin films. Journal of Materials Science: Materials in Electronics 12, 511–514 (2001). https://doi.org/10.1023/A:1012497308906
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DOI: https://doi.org/10.1023/A:1012497308906