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✦   LIBER   ✦

Dynamics of photogenerated carriers in porous silicon probed by microwave absorption

✍ Scribed by Porteanu, H. E.

Book ID
105364202
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
187 KB
Volume
204
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

We report on dynamics of photogenerated carriers in porous silicon using contactless investigation tools. A comparison of two theoretical models: the simple point charge description versus degenerate gas model is presented. The temperature dependence reveals the dominant role of surface states below 70 K. Light intensity dependences evidence Auger processes. The optical and chemical properties can be indirectly improved using the microwave conductivity by studying the surface states of porous materials. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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