Characterization of high resistivity CdTe using acoustoelectric methods
| Autor: | Holger Dignus, Ulrich Birkholz, J. Rosenzweig, Manfred Adolf |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Physics
Nuclear and High Energy Physics Condensed matter physics business.industry Field dependence Electron Trapping Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Cadmium telluride photovoltaics Characterization (materials science) Semiconductor Hall effect Electrical resistivity and conductivity business Instrumentation |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 283:255-259 |
| ISSN: | 0168-9002 |
| DOI: | 10.1016/0168-9002(89)91366-1 |
| Popis: | In semiconductors with bipolar photoconduction the measurements of the electrical conductivity and the Hall effect are not sufficient for the determination of the carrier densities and mobilities. In this case the acoustoelectric effect may be used as an independent method to obtain further relations for the analysis. The acoustoelectric Hall effect and the field dependence of the acoustoelectric current were measured in photosensitive CdTe single crystals with high resistivity at a frequency of 23 MHz. The strong influence of traps on the acoustoelectric phenomena could be explained using a theoretical model including the different trapping parameters for electrons and holes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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