Hydrogenated amorphous silicon/electrolyte contacts: Band bending and photoresponse dependence on surface reactions
- 1 October 1982
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (10) , 6911-6918
- https://doi.org/10.1063/1.330033
Abstract
Aqueous electrolyte contacts do not form Schottky barriers with amorphous silicon electrodes. In the dark, silicon oxidation and electrolyte reduction at a counter electrode produce a battery voltage in series with the depletion-region potential. Illuminating the cell substantially decreases the amorphous silicon electrode series resistance and increases the hole concentration at the surface. This enhances the battery reaction rate and increases the current through the cell. Interpreting this current as a traditional photocurrent (due solely to a Schottky junction) overestimates the magnitude of the barrier height.This publication has 15 references indexed in Scilit:
- Capture cross-section and density of deep gap states in a−SiHx schottky barrier structuresSolid State Communications, 1982
- Carrier collection efficiency of a-SiHx Schottky-barrier solar cellsApplied Physics Letters, 1981
- Silicon photocathode behavior in acidic vanadium(II)-vanadium(III) solutionsJournal of the American Chemical Society, 1981
- Electron transport in hydrogenated amorphous silicon: drift mobility and junction capacitanceSolar Cells, 1980
- Optical characterization of amorphous silicon hydride filmsSolar Cells, 1980
- Capacitance studies of the depletion region in hydrogenated a-Si Schottky barrier solar cellsJournal of Non-Crystalline Solids, 1980
- Schottky barrier height and reverse current of the n-Si-electrolyte junctionSurface Science, 1979
- Schottky barriers at the interface between amorphous silicon and electrolytesJournal of Applied Physics, 1979
- Surface states and barrier heights of metal-amorphous silicon schottky barriersSolid State Communications, 1977
- Mechanism of the Electrochemical Reduction of Persulfates and Hydrogen PeroxideJournal of the Electrochemical Society, 1969