Effects of the undoped layer on characteristics of amorphous silicon Schottky diodes
Journal Article
·
· Electron Device Lett.; (United States)
The effects of undoped layer thickness on the dark and illuminated I-V characteristics of hydrogenated amorphous silicon Schottky barrier solar cells are investigated. Schottky barrier (S.B.) metals having different work function (Cr and Pd) were deposited on the 0.22/mu/m - 1.45/mu/m thick a-Si:H films. Photovoltaic performance, J/sub SC/, V/sub OC/, FF and efficiency, are independent of thickness of the undoped layer if film thickness is larger than the depletion region width. J/sub SC/ and V/sub OC/ are controlled by S.B. metal and FF is independent of S.B. metal. Dark I-V characteristics depend on both S.B. metal and device thickness suggesting a barrier controlled space charge limited phenomena. Variation of turn-on (threshold) voltage with undoped layer thickness can be applied to the design of switching and memory devices. 8 refs.
- Research Organization:
- State Univ of NY at Buffalo, Amherst
- OSTI ID:
- 5560429
- Journal Information:
- Electron Device Lett.; (United States), Journal Name: Electron Device Lett.; (United States) Vol. EDL-2:8; ISSN EDLED
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
AMORPHOUS STATE
CHROMIUM
CURRENTS
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
ELEMENTS
EQUIPMENT
FILL FACTORS
MEMORY DEVICES
METALS
PALLADIUM
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PLATINUM METALS
SCHOTTKY BARRIER SOLAR CELLS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SWITCHING CIRCUITS
TRANSITION ELEMENTS
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
AMORPHOUS STATE
CHROMIUM
CURRENTS
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
ELEMENTS
EQUIPMENT
FILL FACTORS
MEMORY DEVICES
METALS
PALLADIUM
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PLATINUM METALS
SCHOTTKY BARRIER SOLAR CELLS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SWITCHING CIRCUITS
TRANSITION ELEMENTS