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
Affiliations
Jintian Jiang
Jiangsu University of Science and Technology, School of Materials and Science, Zhenjiang, Jiangsu 212003, China
Daoyuan Wang
Department of Chemistry and Physics, University of Arkansas, Pine Bluff, Arkansas 71601, USA
Mingfang Wu
Jiangsu University of Science and Technology, School of Materials and Science, Zhenjiang, Jiangsu 212003, China
Ping Peng
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Fang-Fang Li
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Faqian Liu
School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
Renwei Jing
Jiangsu University of Science and Technology, School of Materials and Science, Zhenjiang, Jiangsu 212003, China
Xuedan Ma
Center for Nanoscale Materials, Argonne National Lab, Lemont, Illinois 60439, USA
Yan Chao
Jiangsu University of Science and Technology, School of Materials and Science, Zhenjiang, Jiangsu 212003, China
Zhili Xiao
Material Science Division, Argonne National Lab, Lemont, Illinois 60439, USA
Qinglong Jiang
Department of Chemistry and Physics, University of Arkansas, Pine Bluff, Arkansas 71601, USA
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.
