Quantifying the drift velocity of carrier ensembles in time-dependent electric fields

authored by: M. Bieler, Jens Hübner, Michael Oestreich, Martin Koch, G. Hein, K. Pierz, U. Siegner
Abstract: If a spatially nonuniform carrier distribution is optically excited in an electrically biased semiconductor, complicated carrier motion can be expected due to temporal and spatial variations of the screened electric field. We present an experimental method that allows one to quantify the drift velocity of carrier ensembles versus time in time-dependent electric fields. The method is based on the analysis of spatially resolved photoluminescence images at different times, recorded with a streak camera. With this technique, we have studied the details of carrier sweep out in photoconductive switches.
External Organisation(s): Physikalisch-Technische Bundesanstalt PTB
Philipps-Universität Marburg
Technische Universität Braunschweig
Type: Article
Journal: Journal of Applied Physics
Volume: 91
Pages: 9869-9873
No. of pages: 5
ISSN: 0021-8979
Publication date: 30.05.2002
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Physics and Astronomy
Electronic version(s): https://doi.org/10.1063/1.1478141 (Access: Unknown)