Abstract

Dember and photo-electromotive-force (PEMF) currents are investigated in silicon photoconductive detectors both theoretically and experimentally. Dember photocurrents were found to dominate the response of high-purity silicon samples with top-surface electrodes to a moving interference pattern. The use of surface electrodes leads to shadowed regions beneath the electrodes, and Dember photocurrents appear under short-circuit conditions. A single-charge-carrier model of the Dember effect is in good qualitative agreement with experimental results. We also show theoretically that the PEMF effect in silicon is weak compared with other semiconductors because of its relatively high intrinsic conductivity.

© 2004 Optical Society of America

Full Article  |  PDF Article
Related Articles
Non-steady-state photoelectromotive force in crystals with long photocarrier lifetimes

I. A. Sokolov and S. I. Stepanov
J. Opt. Soc. Am. B 10(8) 1483-1488 (1993)

Optical spectral analysis using moving space-charge field effects in photoconductive semiconductors

Chen-Chia Wang and Frederic Davidson
J. Opt. Soc. Am. B 13(7) 1376-1383 (1996)

Holographic-current study in laser and photorefractive crystals

N. Noginova, N. Kukhtarev, M. A. Noginov, Bo Su Chen, H. J. Caulfield, and P. Venkateswarlu
J. Opt. Soc. Am. B 13(11) 2622-2629 (1996)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (78)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription