Share Email Print
cover

Proceedings Paper

Corbino-capacitance technique for contactless measurements on conducting layers: application to persistent photoconductivity
Author(s): Ole Per Hansen; Anders Kristensen; Henrik Bruus; Manijeh Razeghi
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The technique utilizes the capacitive coupling between a pair of Corbino electrodes and a conducting layer placed on top of and insulated from the electrodes. Measurements on heterostructures of GaAs/GaAlAs and GaAs/GaInP are reported. The audiofrequency impedance exhibits ShubnikovdeHaas oscillations. These oscillations are used to investigate persistent photoconductiity at 0. 635 tm and 1. 00 jim illumination. The role played by contacts is discussed.

Paper Details

Date Published: 1 February 1991
PDF: 7 pages
Proc. SPIE 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications, (1 February 1991); doi: 10.1117/12.24502
Show Author Affiliations
Ole Per Hansen, Univ. of Copenhagen (Denmark)
Anders Kristensen, Univ. of Copenhagen (Denmark)
Henrik Bruus, Danish Institute of Fundamental Metrology (Denmark)
Manijeh Razeghi, Thomson-CSF (United States)


Published in SPIE Proceedings Vol. 1362:
Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications

© SPIE. Terms of Use
Back to Top