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 · Wed Jan 14 00:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4905718· OSTI ID:22412805

Xu, Caixia; Xu, Long; Zhao, Hua ^[1]; Zhang, Jingwen ^[1]

---

1. 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

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BLEACHING
CERAMICS
ELECTRONS
ILLUMINANCE
INFRARED RADIATION
PHOTOCHROMIC MATERIALS
PLZT
REACTION KINETICS
SENSORS
ULTRAVIOLET RADIATION
VISIBLE RADIATION