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Transport Studies by Steady-State and Transient Photocarrier Grating Methods

Published online by Cambridge University Press:  16 February 2011

R. Schwarz ,
F. Wang  and
D. Schuster
R. Schwarz
Affiliation:
Technical University of Munich, Physics Department, D-85747 Garching, Germany
F. Wang
Affiliation:
Technical University of Munich, Physics Department, D-85747 Garching, Germany
D. Schuster
Affiliation:
Fachhochschule Regensburg, D-93049 Regensburg, Germany
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Abstract

An overview is given on the time and carrier density range covered by steady-state and transient photocarrier grating experiments which are commonly used to determine ambipolar transport parameters. In addition to the optically-detected transient grating method we discuss some details of a new version of the transient grating Method, the electrically-detected transient grating technique (EDTG) applied to hydrogenated Amorphous and microcrystalline silicon films. Numerical simulation shows that the diffusion coefficient is time and intensity dependent as expected for dispersive transport.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 336: Symposium A – Amorphous Silicon Technology - 1994 , 1994 , 359
Copyright
Copyright © Materials Research Society 1994

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