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Crystal Structure Control of ZnxCd1-xS Alloyed Nanocrystals and Structural Dependent Fluorescence Properties
Qin, Kaili1,2; Li, Jingling1; Zhu, Yanqing1,3; Xu, Xueqing1,3; Xiao, Xiudi1,3; Deng, Bing1,2; Yang, Juan1,2; Bi, Zhuoneng1,3; Chen, Shuaijun4; Xu, Gang1,3
2019-08-01
发表期刊NANO
ISSN1793-2920
卷号14期号:8页码:10
通讯作者Zhu, Yanqing(zhuyq@ms.giec.ac.cn)
摘要Crystal structure control is so important to the fluorescence properties that each element should be considered carefully. In conventional synthesis of ZnxCd1-xS alloyed nanocrystals (NCs), most of studies focus on ligand-surface interaction on the formation of either zinc blende or wurtzite ZnxCd1-xS nanocrystals, instead of the reactant source. In this work, mixed crystal phase was found easily in ZnxCd1-xS alloyed NCs when reaction proceeded at high Zn/Cd source ratio condition. Therefore, we regulate the Zn/Cd ratio to obtain relative pure zinc-blende structure, and study the influence of structure change on the fluorescence properties. Further, we have proposed a two-step ZnS coating method to acquire ZnxCd1-xS/ZnS NCs with separated crystal-phase between core and shell. Compared with maximum QY of 81% for ZnxCd1-xS/ZnS NCs synthesized by conventional one-step coating method, the performance of the optimized NCs has significantly improved with maximum QY of 93%.
关键词Crystal structure control ZnxCd1-xS nanocrystals two-step coating method surface passivation
DOI10.1142/S179329201950098X
关键词[WOS]LIGHT-EMITTING-DIODES ; QUANTUM DOTS ; HIGH LUMINESCENCE ; HIGHLY EFFICIENT ; NONINJECTION ; BRIGHT ; YIELD ; CDZNS
收录类别SCI
语种英语
资助项目Key Project on Synergy Colloborative Innovation of Guangzhou City[201704030069] ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province[2018A050506067] ; National Key R&D Program of China[2018 YFD0700200] ; Project of Science and Technology Service Network initiative, Chinese Academy of Sciences[KFJ-STS-QYZD-010] ; Major Science and Technology Project of Tibet Autonomous Region[ZD20170017] ; Youth Innovation Promotion Association CAS[2017400] ; Special Plan of Guangdong Province[2015TQ01N714] ; Natural Science Foundation of Guangdong Province[2018A 0303130146] ; Project of Science of Technology of Guangzhou
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Physics
项目资助者Key Project on Synergy Colloborative Innovation of Guangzhou City ; Project on the Collaborative Innovation and Environmental Construction Platform of Guangdong Province ; National Key R&D Program of China ; Project of Science and Technology Service Network initiative, Chinese Academy of Sciences ; Major Science and Technology Project of Tibet Autonomous Region ; Youth Innovation Promotion Association CAS ; Special Plan of Guangdong Province ; Natural Science Foundation of Guangdong Province ; Project of Science of Technology of Guangzhou
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000484116400005
出版者WORLD SCIENTIFIC PUBL CO PTE LTD
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/25571
专题中国科学院广州能源研究所
通讯作者Zhu, Yanqing
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Southern Med Univ, Zhujiang Hosp, Dept Otolaryngol Head & Neck Surg, Guangzhou 510282, Guangdong, Peoples R China
第一作者单位中国科学院广州能源研究所
推荐引用方式
GB/T 7714
Qin, Kaili,Li, Jingling,Zhu, Yanqing,et al. Crystal Structure Control of ZnxCd1-xS Alloyed Nanocrystals and Structural Dependent Fluorescence Properties[J]. NANO,2019,14(8):10.
APA Qin, Kaili.,Li, Jingling.,Zhu, Yanqing.,Xu, Xueqing.,Xiao, Xiudi.,...&Xu, Gang.(2019).Crystal Structure Control of ZnxCd1-xS Alloyed Nanocrystals and Structural Dependent Fluorescence Properties.NANO,14(8),10.
MLA Qin, Kaili,et al."Crystal Structure Control of ZnxCd1-xS Alloyed Nanocrystals and Structural Dependent Fluorescence Properties".NANO 14.8(2019):10.
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