Properties of mesoporous hybrid perovskite nanocrystals and its application in light-emitting diodes.
作者信息
Fan Bingfeng, Hu Lei, Chen Guojie, Zhang Jinbao, Zhang Xiaoli
机构信息
Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of physics and Optoelectronic Engineering, Foshan University, Foshan 528225, People's Republic of China.
Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.
出版信息
Nanotechnology. 2021 Sep 7;32(48). doi: 10.1088/1361-6528/ac1a92.
We fabricated mesoporous perovskite nanocrystal for the first time, and investigated its optical properties and application in light-emitting diodes (LEDs). The transformation of mesoporous structure can be ascribed to the decomposition of nanocrystals under dilution condition, which results in the blueshift of luminescence. The mesoporous nanocrystals under proper dilution may achieve improved perovskite LEDs, with maximum luminance and current efficiency of 23370 cd mand 6.7 cd A, respectively. This work provide an avenue to the optical engineering of perovskite nanocrystals, and demonstrate that perovskite concentration is one of key factors for realizing efficient LEDs.
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