Экситонные линии поглощения PbS в композите CdS-PbS
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AbstractThe spectral dependences of transmission, absorption, and reflection in CdS−PbS semiconductor layers, which are promising for the development of photodetectors and emitters in the region of an atmospheric- transparency window, were studied. It has been established that a series of thin lines are observed in the infrared spectrum on an absorption edge of the narrow-gap phase (PbS). A method for identification of exciton series was used, and exciton-binding energy E _ ex , exciton concentration N , and value of valence-band splitting Δ E _ v were determined.
1983 ◽
Vol 119
(2)
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pp. 639-649
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1998 ◽
Vol 336
(1-2)
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pp. 205-207
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1996 ◽
Vol 54
(24)
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pp. 17616-17619
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