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Self-assembled ultrafine CsPbBr3 perovskite nanowires for polarized light detection

文献类型：期刊论文

作者Peng, Zixing2,3; Yang, Dandan2,3; Yin, Bozhao2,3; Guo, Xin4; Li, Shuang2,3; Zhan, Qiuqiang4; Xiao, Xiudi5; Liu, Xiaofeng6; Xia, Zhiguo2,3; Yang, Zhongmin2,3
刊名SCIENCE CHINA-MATERIALS
出版日期2021-03-25
页码11
ISSN号2095-8226
关键词ultrafine perovskite nanowires self-assembly perovskite nanowire array anisotropy polarization-sensitive detection
DOI10.1007/s40843-020-1619-6
通讯作者Xiao, Xiudi(xiaoxd@ms.giec.ac.cn) ; Dong, Guoping(dgp@scut.edu.cn)
英文摘要One-dimensional (1D) metal halide perovskite nanowire (NW) arrays with high absorption efficiency, emission yield and dielectric constants, as well as anisotropic optoelectronic properties have found applications in energy harvesting, flexible electronics, and biomedical imaging devices. Here, a modified two-step solvothermal method is developed for the synthesis of self-assembled cubic CsPbBr3 NW arrays. This method provides facile access to continuous and uniform ultrafine perovskite NWs and well-aligned pure perovskite NW arrayed architectures. Under excitation at 365 nm, the CsPbBr3 NWs give a strong blue emission observable to the naked eyes. The CsPbBr3 NWs also exhibit strong two-photon excited luminescence under the irradiation with an 800 nm pulse laser. By rotating the polarization angle of the 800 nm laser, strong polarization dependence with a polarization degree up to similar to 0.49 is demonstrated in the self-assembled CsPbBr3 NW array, although the CsPbBr3 NWs have an isotropic cubic structure. Based on density functional theory (DFT) calculations, this polarization-dependent emission is correlated with the anisotropic charge density distribution of the perovskite NWs. These findings suggest that the ultrafine CsPbBr3 NWs with a well-defined self-assembled architecture could be applied as next-generation polarization-sensitive photoelectronic detection materials.
资助项目Key R&D Program of Guangzhou[202007020003] ; National Natural Science Foundation of China[62075063] ; National Natural Science Foundation of China[51772101] ; National Natural Science Foundation of China[51872095] ; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program[2017BT01X137] ; Natural Science Foundation of Guangdong Province[2019B030301003] ; State Key Lab of Luminescent Materials and Devices, South China University of Technology
WOS研究方向Materials Science
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000634651800002
资助机构Key R&D Program of Guangzhou ; National Natural Science Foundation of China ; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program ; Natural Science Foundation of Guangdong Province ; State Key Lab of Luminescent Materials and Devices, South China University of Technology
源URL[http://ir.giec.ac.cn/handle/344007/32835]  
专题中国科学院广州能源研究所
通讯作者Xiao, Xiudi; Dong, Guoping
作者单位1.Zhejiang Univ, Coll Opt Sci & Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
2.South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou 510640, Peoples R China
3.South China Univ Technol, Guangdong Engn Technol Res & Dev Ctr Special Opt, Guangzhou 510640, Peoples R China
4.South China Normal Univ, Ctr Opt & Electromagnet Res, South China Acad Adv Optoelect, Guangzhou 510006, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
6.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
推荐引用方式
GB/T 7714		 Peng, Zixing,Yang, Dandan,Yin, Bozhao,et al. Self-assembled ultrafine CsPbBr3 perovskite nanowires for polarized light detection[J]. SCIENCE CHINA-MATERIALS,2021:11.
APA Peng, Zixing.,Yang, Dandan.,Yin, Bozhao.,Guo, Xin.,Li, Shuang.,...&Dong, Guoping.(2021).Self-assembled ultrafine CsPbBr3 perovskite nanowires for polarized light detection.SCIENCE CHINA-MATERIALS,11.
MLA Peng, Zixing,et al."Self-assembled ultrafine CsPbBr3 perovskite nanowires for polarized light detection".SCIENCE CHINA-MATERIALS (2021):11.

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来源：广州能源研究所

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