Mechanism of photochromic effect in Pb(Zr,Ti)O{sub 3} and (Pb,La)(Zr,Ti)O{sub 3} ceramics under violet/infrared light illumination
Journal Article
·
· Journal of Applied Physics
- Department of Physics, Harbin Institute of Technology, Harbin 150001 (China)
Obvious photochromic effects were observed in Pb(Zr,Ti)O{sub 3} and (Pb,La)(Zr,Ti)O{sub 3} (PLZT) ceramics, along with exponential responses to illumination power in both darkening and bleaching processes. An interesting anomalous dispersion in the transparent PLZT was observed and discussed. A tentative physical picture based on photoinduced electron stimulated processes and on structural change was proposed to explain all the interesting observations. Rate equations were established and solved in verifying the validity of the proposed model. This work may serve as guidance in designing tunable achromatic lenses, UV and IR light detectors and sensors.
- OSTI ID:
- 22412805
- Journal Information:
- Journal of Applied Physics, Vol. 117, Issue 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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