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Highly Controlled Zigzag Perovskite Nanocrystals Enabled by Dipole-Induced Self-Assembly of Nanocubes for Low-Threshold Amplified Spontaneous Emission and Lasing

Zhang, Chengxi; Chen, Jiayi; Turyanska, Lyudmila; Wang, Junhui; Wang, Weihua; Wang, Lin; Kong, Lingmei; Wu, Kaifeng; Yao, Jisong; Yao, Hongbin; Yang, Zhiwen; Li, Wanwan; Bekenstein, Yehonadav; Wang, Yue; Jia, Guohua; Yang, Xuyong

Highly Controlled Zigzag Perovskite Nanocrystals Enabled by Dipole-Induced Self-Assembly of Nanocubes for Low-Threshold Amplified Spontaneous Emission and Lasing Thumbnail


Authors

Chengxi Zhang

Jiayi Chen

Junhui Wang

Weihua Wang

Lin Wang

Lingmei Kong

Kaifeng Wu

Jisong Yao

Hongbin Yao

Zhiwen Yang

Wanwan Li

Yehonadav Bekenstein

Yue Wang

Guohua Jia

Xuyong Yang



Abstract

Self-assembly of nanocrystals into controlled structures while uncompromising their properties is one of the key steps in optoelectronic device fabrication. Herein, zigzag CsPbBr3 perovskite nanocrystals are demonstrated with a precise number of components with nanocube morphology, these can be successfully obtained through a dipole-induced self-assembly process. The addition of a trace amount of deionized water facilitates the transfer from CsPbBr3 nanocubes to intermediates of CsPb2Br5 and Cs3In2Br9, which then fastly release reaction monomers leading to further homogenous nucleation of CsPbBr3 nanocubes, followed by the formation of zigzag CsPbBr3 nanocrystals through a dipole-induced self-assembly process. Dipole moment along <110> axis is found to be the driving force for the assembly of nanocubes into zigzag nanocrystals. The zigzag CsPbBr3 nanocrystals exhibit desirable optical properties comparable to their nanocube counterparts and offer advantages for amplified spontaneous emission and lasing applications with low pump thresholds of 3.1 and 6.02 µJ cm−2, respectively. This study not only develops a strategy for producing highly controlled zigzag perovskite nanocrystals and provides insights on the dipole-induced self-assembly mechanisms, but also opens an avenue for their application in lasing.

Citation

Zhang, C., Chen, J., Turyanska, L., Wang, J., Wang, W., Wang, L., …Yang, X. (2023). Highly Controlled Zigzag Perovskite Nanocrystals Enabled by Dipole-Induced Self-Assembly of Nanocubes for Low-Threshold Amplified Spontaneous Emission and Lasing. Advanced Functional Materials, 33(3), Article 2211466. https://doi.org/10.1002/adfm.202211466

Journal Article Type Article
Acceptance Date Oct 17, 2022
Online Publication Date Nov 11, 2022
Publication Date Jan 16, 2023
Deposit Date Nov 15, 2022
Publicly Available Date Mar 29, 2024
Journal Advanced Functional Materials
Print ISSN 1616-301X
Electronic ISSN 1616-3028
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 33
Issue 3
Article Number 2211466
DOI https://doi.org/10.1002/adfm.202211466
Keywords Electrochemistry, Condensed Matter Physics, Biomaterials, Electronic, Optical and Magnetic Materials
Public URL https://nottingham-repository.worktribe.com/output/13744669
Publisher URL https://onlinelibrary.wiley.com/doi/10.1002/adfm.202211466

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