상세 보기
- Chen, Jingxin;
- Oh, Jin Young;
- Li, Boyu;
- Qiao, Zhihan;
- Zhang, Haiyang;
- ... Choi, Woo Seok;
- 외 11명
WEB OF SCIENCE
0SCOPUS
0초록
Oxygen concentration critically determines the physical properties of transition metal oxides. In this work, we realized a subtle modulation of the oxygen concentration in heterostructures composed of perovskite SrTiO3 (STO) and brownmillerite SrCoO2.5 (BM-SCO) by deliberately promoting oxygen migration from the oxygen reservoir to BM-SCO with the assistance of STO capping. A small increase in the oxygen concentration was demonstrated to exclusively change the interorbital transition that is mostly related to the O 2p states in BM-SCO. The independent tuning of interorbital transition facilitates a wavelength-selective control of visible-light absorption. This results in a rich colorful appearance of the heterostructures, which depends on the thickness of the STO capping layer. The capping-assisted oxygen migration is expected to facilitate the designing and tailoring of emergent phenomena in oxygen-deficient oxides, even in the absence of a full topotactic phase transition.
키워드
- 제목
- Wavelength-Selective Control of Visible Light Absorption through Capping-Assisted Oxygen Migration in Oxide Heterostructures
- 저자
- Chen, Jingxin; Oh, Jin Young; Li, Boyu; Qiao, Zhihan; Zhang, Haiyang; Li, Deyang; Men, Enyang; Wang, Hangtian; Xi, Shibo; Chen, Kai; Zhang, Han; Jeen, Hyoungjeen; Park, Sang-Youn; Song, Dongsheng; Zhu, Hong; Choi, Woo Seok; Hao, Lin
- 발행일
- 2025-05
- 유형
- Article; Early Access
- 저널명
- Nano Letters
- 권
- 25
- 호
- 23
- 페이지
- 9386 ~ 9393