Reversible photoswitching behavior in bulk resistance and in color of polycrystalline AgI at room temperature
- Research Institute for Electronic Science, Hokkaido University, 001-0020 Sapporo (Japan) and Graduate School of Environmental Science, Hokkaido University, 060-0810 Sapporo (Japan)
A photoinduced reversible change in bulk resistance of polycrystalline AgI is observed at room temperature. The original yellow color of the sample changes to dark brown with UV (308 nm) photoirradiation, associated with the small decrease in the bulk resistance. A reversible switching of color between dark brown and yellow is observed by alternative UV-visible photoirradiation, associated with a switching between high and low resistance states. The observed reversible photoswitching is interpreted in terms of the photoinduced reversible change in the {beta}-{gamma}-polytype stacking structure of the polycrystalline AgI.
- OSTI ID:
- 21175810
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 23 Vol. 93; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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