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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.

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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