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Picosecond and CW photomodulation spectroscopy of polysilane alloys

Authors
Journal
Journal of Non-Crystalline Solids
0022-3093
Publisher
Elsevier
Publication Date
Volume
114
Identifiers
DOI: 10.1016/0022-3093(89)90659-5
Keywords
  • Section 14. Picosecond Spectroscopy

Abstract

Abstract The CW and Picosecond Photomodulation techniques have been applied to thin films of polysilane-alloys. The Cw response shows a single photoinduced absorption band which is due to carriers trapped at DB defects. The picosecond decays are relatively fast exponentials in contrast to the slow power-low decays in regular a-Si:H. This is interpreted as fast geminate recombination in the a-Si:H clusters embedded in the polysilane matrix.

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