题名 | The scaling of the ligand concentration and Soret effect induced phase transition in CsPbBr |
作者 | |
通讯作者 | Wang, Kai |
发表日期 | 2019
|
DOI | |
发表期刊 | |
ISSN | 20507496
|
EISSN | 2050-7496
|
卷号 | 7期号:48页码:27241-27246 |
摘要 | An intelligent chemistry strategy based automated machine is applied for the study of the phase transition in CsPbBr3 quantum dots (QDs). With an in situ photoluminescence (PL) signal detection and analysis module, oleyl amine (OLA) and oleyl acid (OA) ligand concentration dependent diffusion pictures are well derived, a three-stage power-law scaling is disclosed on the ligand concentration dependent growth, and a phase transformation from CsPbBr3 to Cs4PbBr6 QDs is confirmed. Based on the experimental analysis associated with the G0W0-BSE calculation, we confirmed that there is no significant PL signal in the pure Cs4PbBr6 structure. With a steady temperature control module, we find that the ligand concentration and the Soret effect are isomorphic for the mass flux in the QD nucleation and phase transformation. We find that the activity of surface states can be essential for the size dependence of the Soret effect in a general way. |
相关链接 | [来源记录] |
收录类别 | |
语种 | 英语
|
学校署名 | 通讯
|
资助项目 | National Key Research and Development Program[2017YFE0120400]
|
WOS研究方向 | Chemistry
; Energy & Fuels
; Materials Science
|
WOS类目 | Chemistry, Physical
; Energy & Fuels
; Materials Science, Multidisciplinary
|
WOS记录号 | WOS:000502302300005
|
出版者 | |
EI入藏号 | 20195107884343
|
EI主题词 | Lead Compounds
; Ligands
; Nanocrystals
; Perovskite
; Phase Transitions
; Semiconductor Quantum Dots
|
EI分类号 | Minerals:482.2
; Semiconductor Devices And Integrated Circuits:714.2
; Nanotechnology:761
; Physical Chemistry:801.4
|
来源库 | Web of Science
|
引用统计 |
被引频次[WOS]:8
|
成果类型 | 期刊论文 |
条目标识符 | //www.snoollab.com/handle/2SGJ60CL/50826 |
专题 | 工学院_电子与电气工程系 |
作者单位 | 1.Shenzhen Institute of Artificial Intelligence and Robotics for Society (AIRS), Shenzhen, Guangdong; 518129, China 2.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, Guangdong; 518055, China |
通讯作者单位 | 电子与电气工程系 |
推荐引用方式 GB/T 7714 |
Li, Jiagen,Hu, Menglei,Wang, Zhaojin,et al. The scaling of the ligand concentration and Soret effect induced phase transition in CsPbBr |
APA |
Li, Jiagen,Hu, Menglei,Wang, Zhaojin,Lu, Yihua,Wang, Kai,&Zhu, Xi.(2019).The scaling of the ligand concentration and Soret effect induced phase transition in CsPbBr |
MLA |
Li, Jiagen,et al."The scaling of the ligand concentration and Soret effect induced phase transition in CsPbBr |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | 操作 | |
c9ta10226d.pdf(819KB) | -- | -- | 限制开放 | -- |
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