Space charge memory effect in a-Si:H at low temperatures
Conference
·
OSTI ID:20085491
Space charges build up near one or both electrodes of a photoconductor unless the thermoionic current balances the photocurrent. Space charges built up also when a voltage U is applied at low T to a semiconductor containing a nonequilibrium distribution of carriers. The presence of a space charge is observed as a relaxation-current transient when the sample is illuminated at zero bias. If one type of carrier is immobile the steady state photocurrent becomes zero.
- Research Organization:
- Univ. of Chicago, IL (US)
- Sponsoring Organization:
- National Science Foundation
- OSTI ID:
- 20085491
- Country of Publication:
- United States
- Language:
- English
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