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PHOTOACOUSTIC MEASUREMENT OF AMORPHOUS SEMICONDUCTOR SUPERLATTICE FILMS |
FENG Xiaomei;LIU Xiangna;WANG Zhichao;QIU Shuye* |
Physics Department and Institute of Solid State Physics, Nanjing University, Nanjing
*Institute of Acoustic, Nanjing University, Nanjing |
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Cite this article: |
FENG Xiaomei, LIU Xiangna, WANG Zhichao et al 1986 Chin. Phys. Lett. 3 481-484 |
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Abstract We present here the first measurement of photoacoustic spectra (PAS) of a-Si:H/a-SiNx:H multilayers. By converting the PAS signal to absorption coefficient, the blue shift and the broadening of Urbach edge are explained as the results of quantum size effect in superlattice structure.
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Published: 01 November 1986
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