Self-consistency and self-sufficiency of the photocarrier grating technique

The recently suggested photocarrier grating technique appears to be the most reliable method available for the determination of the ambipolar diffusion length in hydrogenated amorphous silicon. We show that the technique can be made simpler than originally suggested, and that it is self-sufficient i...

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Bibliographic Details
Published in:Applied physics letters 1988-09, Vol.53 (11), p.992-994
Main Authors: BALBERG, I, DELAHOY, A. E, WEAKLIEM, H. A
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Exact sciences and technology
Natural energy
Solar energy
Solar thermal conversion
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Summary:The recently suggested photocarrier grating technique appears to be the most reliable method available for the determination of the ambipolar diffusion length in hydrogenated amorphous silicon. We show that the technique can be made simpler than originally suggested, and that it is self-sufficient in the sense that all the required parameters can be determined by the same experimental setup. It is demonstrated that the various results obtained by the technique are self-consistent and that extremely accurate values of the ambipolar diffusion length can be determined.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.100051