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Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. Analytical solution for charge carrier transients in a twolayerstructure
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Fulltext urn:nbn:de:0011n2096112 (830 KByte PDF) MD5 Fingerprint: 116521531f50953cac83b50d9be5a4e4 Created on: 9.11.2012 
 Ossenbrink, H.A.: Fourteenth European Photovoltaic Solar Energy Conference 1997. Proceedings. Vol.2 : International conference held at Barcelona, Spain, 30 June4 July 1997 Bedford: Stephens, 1997 ISBN: 1901675035 ISBN: 1901675019 ISBN: 1901675027 pp.24082411 
 European Photovoltaic Solar Energy Conference <14, 1997, Barcelona> 

 English 
 Conference Paper, Electronic Publication 
 Fraunhofer ISE () 
Abstract
The use of photoconductance decay measurements for determining charge carrier lifetimes in a twolayer structure was up to now limited by the lack of an appropriate analytical solution describing the carrier dynamics. We present an exact solution for arbitrary layer parameters. We prove that in the limit that the lifetime in layer 1 is much higher than in layer 2 the exact solution reduces to the standard approximation with an effective recombination velocity for layer 2. Plots for the deviation of the approximate from the exact solution for wide parameter ranges are presented. Furthermore, we describe a sensitive test for contamination in deposition equipment.