Open AccessTwo phase transitions in PbZnO3 at high pressure and the theoretical study of plasmons properties of PbZnO3 quantum dots
Author(s) -
Tong Liu,
Hong Zhang,
Xinlu Cheng
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.016586
Subject(s) - plasmon , materials science , polarization (electrochemistry) , perovskite (structure) , photoelectric effect , quantum dot , optics , infrared , phase transition , optoelectronics , dipole , condensed matter physics , physics , chemistry , quantum mechanics , crystallography
Our first principles studies predict that PbZnO 3 will realize the phase transition from LiNbO 3 -type to perovskite-type and finally to post-post-perovskite-type with the gradual increase of pressure. Three types of PbZnO 3 quantum dots are constructed based on such three phases, and their plasmon properties are investigated. It is found that the perovskite-type PbZnO 3 can realize the regulation of optical absorption in near-infrared to ultraviolet regions, and the dipole oscillation mode of post-post-perovskite PbZnO 3 plasmons can change from short range to long range. More accurately, we estimated the electric polarization of LiNbO 3 -type PbZnO 3 to be 116µC/cm 2 . Our investigations confirm the excellent properties and great application prospect of PbZnO 3 materials in different photoelectric fields.