Open AccessElectrochromism accompanying ferroelectric domain inversion in congruent RuO2:LiNbO3 crystal
Author(s) -
Ya’nan Zhi,
Dean Liu,
Yu Zhou,
Zhifang Chai,
Liren Liu
Publication year - 2005
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.010172
Subject(s) - electrochromism , ferroelectricity , poling , materials science , electric field , annealing (glass) , optics , inversion (geology) , doping , ion , optoelectronics , electrode , chemistry , physics , paleontology , organic chemistry , quantum mechanics , structural basin , biology , dielectric , composite material
Electrochromic phenomena accompanying the ferroelectric domain inversion in congruent RuO2-doped z-cut LiNbO3 crystals at room temperature are observed in experiments. During the electric poling process, the electrochromism accompanies the ferroelectric domain inversion simultaneously in the same poled area. The electrochromism is completely reversible when the domain is inverted from the reverse direction. The influences of electric field and annealing conditions on domain inversion and electrochromism are also discussed. We propose the reasonable assumption that charge redistribution within the crystal structure caused by domain inversion is the source for electrochemically oxidation and reduction of Ru ion to produce the electrochromic effect.