Near‐edge Optical Properties of CuInSe2 Studied by Photoacoustic Spectroscopy
作者： A. Zegadi , H. Neumann , M. A. Slifkin , R. D. Tomlinson
关键词:
摘要: Optical absorption spectra of n-type CuInSe2 single crystals were evaluated by means photoacoustic spectroscopy in the photon energy range from 0.94 to 1.02 eV. At energies below 0.99 eV exhibit exponential tails that are ascribed presence shallow impurity states. higher coefficients follow relation for direct allowed optical transitions between parabolic bands. The parameters this determined and compared with previous measurements. Optische Absorptionsspecktren n-leitender CuInSe2-Einkristalle wurden mit Hilfe der photoakustischen Spektroskopie im Photonenenergiebereich von bis bestimmt. Bei Photonenergien unterhalb zeigen die Absorptionsspektren exponentielle Auslaufer, dem Vorhandensein flacher Storzellen zugeschrieben werden. hoheren Photonenenergien folgen Absorptions-koeffizienten Beziehung fur direkte erlaubte optische Ubergange zwischen parabolischen Bandern. Die Parameter dieser werden bestimmt und fruheren Messungen verglichen.
sci-hub.se 参考文章(21)
Earnest J. Johnson, Chapter 6 Absorption near the Fundamental Edge Semiconductors and Semimetals. ,vol. 3, pp. 153- 258 ,(1967) , 10.1016/S0080-8784(08)60318-X
David Redfield, Transport properties of electrons in energy band tails Advances in Physics. ,vol. 24, pp. 463- 487 ,(1975) , 10.1080/00018737500101441
Satoshi Yamasaki, Hideyo Okushi, Akihisa Matsuda, Hidetoshi Oheda, Nobuhiro Hata, Kazunobu Tanaka, Determination of the Optical Constants of Thin Films Using Photoacoustic Spectroscopy Japanese Journal of Applied Physics. ,vol. 20, pp. L665- L668 ,(1981) , 10.1143/JJAP.20.L665
Andrew C. Tam, Applications of photoacoustic sensing techniques Reviews of Modern Physics. ,vol. 58, pp. 381- 431 ,(1986) , 10.1103/REVMODPHYS.58.381
A. Zegadi, M. A. Slifkin, M. Djamin, A. E. Hill, R. D. Tomlinson, A Photoacoustic Study of CuInxGa1−xSe2 Alloys Physica Status Solidi (a). ,vol. 133, pp. 533- 540 ,(1992) , 10.1002/PSSA.2211330238
H. Neumann, W. Hörig, R. D. Tomlinson, N. Avgerinos, Optical Properties of CuInSe2 Single Crystals Grown by the Vertical Bridgman Technique Crystal Research and Technology. ,vol. 21, pp. 805- 810 ,(1986) , 10.1002/CRAT.2170210623
H. Neumann, Optical properties and electronic band structure of CuInSe2 Solar Cells. ,vol. 16, pp. 317- 333 ,(1986) , 10.1016/0379-6787(86)90092-X
H. Neumann, R.D. Tomlinson, Relation between electrical properties and composition in CuInSe2 single crystals Solar Cells. ,vol. 28, pp. 301- 313 ,(1990) , 10.1016/0379-6787(90)90065-D
H. Neumann, On Measuring Impurity Absorption Spectra of Semiconductors by Photoacoustic Spectroscopy Crystal Research and Technology. ,vol. 28, pp. 73- 82 ,(1993) , 10.1002/CRAT.2170280112
H. Neumann, R.D. Tomlinson, Band-gap narrowing in n-type CuInSe2 single crystals Solid State Communications. ,vol. 57, pp. 591- 594 ,(1986) , 10.1016/0038-1098(86)90328-5