典型文献
Highly efficient emission and high-CRI warm white light-emitting diodes from ligand-modified CsPbBr3 quantum dots
文献摘要：
All-inorganic CsPbBr3 perovskite quantum dots (QDs) have received great attention in white light emission because of their outstanding properties. However, their practical application is hindered by poor stability. Herein, we propose a simple strategy to synthesize excellent stability and efficient emission of CsPbBr3 QDs by using 2-hexyldecanoic acid (DA) as a ligand to replace the regular oleic acid (OA) ligand. Thanks to the strong binding energy between DA ligand and QDs, the modified QDs not only show a high photoluminescence quantum yield (PLQY) of 96％ but also exhibit high stability against ethanol and water. Thereby warm white light-emitting diodes (WLEDs) are constructed by combining lig-and modified CsPbBr3 QDs with red AgInZnS QDs on blue emitting InGaN chips, exhibiting a color rendering index of 93, a power efficiency of 64.8 lm/W, a CIE coordinate of (0.44, 0.42) and correlated color temperature value of 3018 K. In ad-dition, WLEDs based on ligand modified CsPbBr3 QDs also exhibit better thermal performance than that of WLEDs based on the regular CsPbBr3 QDs. The combination of improved efficiency and better thermal stability with high color quality indicates that the modified CsPbBr3 QDs are ideal for WLEDs application.
文献关键词：
中图分类号：
作者姓名：
Dongdong Yan;Shuangyi Zhao;Yubo Zhang;Huaxin Wang;Zhigang Zang
作者机构：
Key Laboratory of Optoelectronic Technology&Systems(Ministry of Education),Chongqing University,Chongqing 400044,China;Department of Physics,Southern University of Science and Technology,Shenzhen 518055,China
文献出处：
引用格式：
[1]Dongdong Yan;Shuangyi Zhao;Yubo Zhang;Huaxin Wang;Zhigang Zang-.Highly efficient emission and high-CRI warm white light-emitting diodes from ligand-modified CsPbBr3 quantum dots)[J].光电进展（英文版）,2022(01):35-48
A类：
hexyldecanoic,AgInZnS
B类：
Highly,efficient,emission,high,CRI,warm,white,light,emitting,diodes,from,ligand,modified,CsPbBr3,quantum,dots,All,inorganic,perovskite,QDs,have,received,great,attention,because,their,outstanding,properties,However,practical,application,hindered,poor,stability,Herein,propose,simple,strategy,synthesize,excellent,using,acid,DA,replace,regular,oleic,OA,Thanks,strong,binding,energy,between,not,only,show,photoluminescence,yield,PLQY,but,also,against,ethanol,water,Thereby,WLEDs,are,constructed,combining,blue,InGaN,chips,exhibiting,color,rendering,power,efficiency,lm,CIE,coordinate,correlated,temperature,value,ad,dition,better,thermal,performance,that,combination,improved,quality,indicates,ideal
AB值：
0.508656
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