Two phase transitions in PbZnO3 at high pressure and the theoretical study of plasmons properties of PbZnO3 quantum dots | Zendy

Tong Liu | Zendy; Hong Zhang | Zendy; Xinlu Cheng | Zendy

Open Access

Two 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 , perovskite (structure) , polarization (electrochemistry) , materials science , photoelectric effect , quantum dot , optics , infrared , phase transition , optoelectronics , condensed matter physics , physics , chemistry , 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 o be 116µC/cm 2 . Our investigations confirm the excellent properties and great application prospect of PbZnO 3 materials in different photoelectric fields.

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