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Yu Z, Cao S, Zhao Y, Guo Y, Dong M, Fu Y, Zhao J, Yang J, Jiang L, Wu Y. Chiral Lead-Free Double Perovskite Single-Crystalline Microwire Arrays for Anisotropic Second-Harmonic Generation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39451-39458. [PMID: 35984310 DOI: 10.1021/acsami.2c06856] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Halide double perovskites present a new branch for versatile optoelectronic devices because of their huge structural compatibility and environmental friendliness, whereas nonlinear optics (NLO) devices remain blank for this fascinating family. Simultaneously, the precise patterning of single-crystalline perovskite microwire arrays remains a challenge for the integration of NLO devices. Herein, we designed lead-free chiral 2D double perovskites with the nonsymmetrical structure presenting second-harmonic generation (SHG). Furthermore, perovskite single-crystalline arrays with regulated geometry, pure orientation, and high crystallinity are prepared using the capillary-bridge confined assembly technique. The efficient SHG originates from the asymmetric crystal structure and high crystallinity of the microwire arrays. Compared with their polycrystalline thin-film counterparts, linearly polarized SHG and a higher SHG conversion efficiency are demonstrated based on microwire arrays. The results not only expand the applications of lead-free double perovskites in the NLO-integrated fields but also provide a viable way for lead-free optoelectronic devices.
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Affiliation(s)
- Ziwei Yu
- Ji Hua Laboratory, Foshan, Guangdong 528000, P.R. China
| | - Shiqi Cao
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100039, P. R. China
| | - Yingjie Zhao
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Yangwu Guo
- Ji Hua Laboratory, Foshan, Guangdong 528000, P.R. China
| | - Meiqiu Dong
- Ji Hua Laboratory, Foshan, Guangdong 528000, P.R. China
| | - Yue Fu
- Ji Hua Laboratory, Foshan, Guangdong 528000, P.R. China
| | - Jinjin Zhao
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jingrun Yang
- Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing 100039, P. R. China
| | - Lei Jiang
- Ji Hua Laboratory, Foshan, Guangdong 528000, P.R. China
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yuchen Wu
- Ji Hua Laboratory, Foshan, Guangdong 528000, P.R. China
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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