Abstract
Polycrystalline CdSe and CdTe layers were fabricated by putting liquid Cd in contact with Se or Te vapors under constant Ar flow. The crystalline structure, surface properties, and semiconducting properties of these materials have been determined. Both materials were found to be n-type semiconductors. The results show that, under the proper experimental conditions, the liquid metal-vapor reaction enables the synthesis of polycrystalline CdSe photoelectrodes with a 6.9% energy conversion efficiency when used in an electrochemical photovoltaic cell under 80 mW/cm2 of white light illumination. This efficiency rates amongst the highest ones measured under similar conditions using polycrystalline CdSe. These CdSe layers have a majority charge carrier density of ND = 2.6 × 1017 cm−3 and possess a highly textured surface which is assumed to be mainly responsible for the high photovoltaic efficiency. The highly textured CdTe samples obtained by this process, however, show a photovoltaic conversion efficiency of only 0.2%, and this is seen to be mainly due to their high majority charge carrier density of ND = 7.8 × 1019 cm−3.
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M. A. Russak, J. Reichman, H. Witzke, S. K. Deb, and S. N. Chen, J. Electrochem. Soc. 127, 725 (1980).
G. Hodes, Nature 285, 29 (1980).
D. J. Miller and D. Haneman, Solar Energy Mater. 4, 223 (1981).
R. O. Loutfy, T. F. McIntyre, D. K. Murti, and C. K. Hsiao, Solar Energy Mater. 5, 221 (1981).
C.J. Liu and J.H. Wang, J. Electrochem. Soc. 129, 719 (1982).
M. Tomkiewicz, I. Ling, and W. S. Parsons, J. Electrochem. Soc. 129, 2016 (1982).
R.A. Boudreau and R.D. Rauh, J. Electrochem. Soc. 130, 513 (1983).
R. Haak, D. Tench, and M. A. Russak, J. Electrochem. Soc. 131, 2709 (1984).
R. O. Loutfy and D. S. Ng, Solar Energy Mater. 11, 319 (1984).
V. Canevari, N. Romeo, G. Sberveglieri, S. Azzi, A. Tosi, M. Curti, and L. Zanotti, J. Vac. Sci. Technol. A2, 9 (1984).
M. Cocivera, A. Darkowski, and B. Love, J. Electrochem. Soc. 131, 2514 (1984).
M. Cocivera, J. Chem. Soc., Chem. Commun., 938 (1984).
J. P. Szabo and M. Cocivera, J. Electrochem. Soc. 133, 1247 (1986).
J. S. Lee, Y. K. Jun, and H. B. Im, J. Electrochem. Soc. 134, 249 (1987).
M. T. Gutierrez and P. Salvador, Solar Energy Mater. 15, 99 (1987).
D. Iwanov and C. Nanev, Acta Physica Academiae Scientiarum Hungaricae 47, 83 (1979).
J. S. Curran, R. Philippe, M. Roubin, and L. Mosoni, Solar Energy Mater. 9, 329 (1983).
M.F. Lawrence, N. Du, R. Philippe, and J. P. Dodelet, J. Cryst. Growth 84, 133 (1987).
J. S. Curran, R. Philippe, and G. Stremsdoerfer, J. Electroanal. Chem. 187, 121 (1985).
M. F. Lawrence, N. Du, G. Stremsdoerfer, R. Philippe, and J. P. Dodelet, The Electrochemical Society, Extended Abstracts 86-1, 467 (1986).
B. Parkinson, J. Chem. Education 60, 338 (1983).
S. M. Boudreau, R. D. Rauh, and R. A. Boudreau, J. Chem. Education 60, 498 (1983).
Handbook of Chemistry and Physics, edited by R. C. Weast, 53rd ed. (CRC Press, Cleveland, OH, 1972), pp. D-175, D-176.
Thermophysical Properties of Matter: Thermal Expansion, Metallic Elements and Alloys, edited by Y. S. Touloukian (IFI/Plenum, New York, 1975), The TPRC Data Series, Vol. 12, p. 40.
Thermophysical Properties of Matter: Thermal Expansion, Non-metallic Solids, edited by Y. S. Touloukian (IFI/Plenum, New York, 1977), The TPRC Data Series, Vol. 13, pp. 1185, 1186, and 1243.
C. M. Wolfe, N. Holonyak, Jr., and G. E. Stillman, Physical Properties of Semiconductors (Prentice-Hall, Inc., Englewood Cliffs, NJ, 1989), p. 341.
S.M. Sze, Physics of Semiconductor Devices (Wiley, New York, 1969), pp. 371, 372.
J. I. Pankove, Optical Processes in Semiconductors, Solid State Physical Electronics Series, edited by N. Holonyak, Jr. (Prentice-Hall, Inc., Englewood Cliffs, NJ, 1971), pp. 34–36.
M.A. Butler, J. Appl. Phys. 48, 1914 (1977).
K. Colbow, D. J. Harrison, and B. L. Funt, J. Electrochem. Soc. 128, 547 (1981).
G. Hodes, J. Manassen, and D. Cahen, Bull. Isr. Phys. Soc. 22, 100 (1976).
D. Cahen, G. Hodes, and J. Manassen, J. Electrochem. Soc. 125, 1623 (1978).
A. B. Ellis, S. W. Kaiser, and M. S. Wrighton, J. Am. Chem. Soc. 98, 1635 (1976).
A. B. Ellis, S. W. Kaiser, J. M. Bolts, and M. S. Wrighton, J. Am. Chem. Soc. 99, 2839 (1977).
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Deng, Z., Cinquino, M. & Lawrence, M.F. Characterization of electrochemical photovoltaic cells using polycrystalline CdSe and CdTe electrodes grown by a liquid metal-vapor reaction. Journal of Materials Research 6, 1293–1299 (1991). https://doi.org/10.1557/JMR.1991.1293
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DOI: https://doi.org/10.1557/JMR.1991.1293