Polycrystalline Zn3P2 Schottky photodiode: Vacuum surface effects
- 15 August 1995
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 78 (4) , 2808-2810
- https://doi.org/10.1063/1.360079
Abstract
Thin‐film polycrystalline Mg/Zn3P2Schottkyphotodiodes were fabricated. Their optical and electrical properties under 1 atm air and 10−5 Torr vacuum conditions were measured. It was observed that the spectral quantum efficiency improved under vacuum. These changes were a result of surface effects. Surface ionic charge at the bulk‐surface interface and at the grain boundary induces a surface depletion region which is affected by vacuum operation, hence affecting the photodiodeproperties.This publication has 8 references indexed in Scilit:
- Comparisons of vacuum surface effects on commercial photodiodes: spatial response uniformity via a computerized laser scanning systemApplied Optics, 1987
- Surface effects and grain-boundary domination in thin-film Zn3P2 photoconductivityJournal of Applied Physics, 1986
- Significant photodiode quantum efficiency improvement and spectral response alteration through surface effects in vacuumIEEE Transactions on Electron Devices, 1984
- Wavelength tuning of GaAs LED's through surface effectsIEEE Transactions on Electron Devices, 1983
- Determination of the grain boundary recombination velocity in polycrystalline silicon as a function of illumination from photoconductance measurementsSolid-State Electronics, 1982
- Spectral response of ac photoconductivity in Zn3P2Journal of Applied Physics, 1982
- Zinc phosphide-zinc oxide heterojunction solar cellsApplied Physics Letters, 1981
- Ultraviolet photoconductive detectors in Zn 3 P 2Electronics Letters, 1979