journal article·2020-07-01Open access

Ultrasonication-assisted trace amount solvent synthesis of Cs4PbBr6 crystal with ultra-bright green light emission

Jintian Jiang, Daoyuan Wang, Mingfang Wu, Ping Peng, Fang-Fang Li, Faqian Liu, Renwei Jing, Xuedan Ma, Yan Chao, Zhili Xiao, Qinglong Jiang

APL Materials· Volume 8· Issue 7

Abstract

Cs4PbBr6 crystals have been synthesized by an ultrasonication-assisted trace amount polar solvent method. The prepared green Cs4PbBr6 material was found to have high photoluminescence (PL) brightness and 10 ns PL lifetime. The prepared green light emitting device can achieve the maximum brightness of 3.8 × 109 cd/m2, which is nearly 100 times higher than a wick. The white light emitting device based on Cs4PbBr6 crystals has better performance than commercial products, which can cover 32.3% of the color gamut and achieves 107.3% coverage for International Commission on Illumination (CIE)1931 and 84.8% coverage for CIE1976.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Optical properties and cooling technologies in crystalline materials · Solid-state spectroscopy and crystallography

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Jiangsu University of Science and Technology, School of Materials and Science 1 , Zhenjiang, Jiangsu 212003, China

Department of Chemistry and Physics, University of Arkansas 2 , Pine Bluff, Arkansas 71601, USA

State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology 3 , Wuhan 430074, China

School of Chemical Engineering and Technology, Sun Yat-sen University 4 , Zhuhai 519082, China

Center for Nanoscale Materials, Argonne National Lab 5 , Lemont, Illinois 60439, USA

Material Science Division, Argonne National Lab 6 , Lemont, Illinois 60439, USA

Funding

National Natural Science Foundation of China

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