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Proton Shuttle-Assisted Surface Reconstruction toward Nonpolar Facets-Terminated Zinc-Blende CdSe/CdS Core/Shell Quantum Dots | |
2023 | |
发表期刊 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (IF:14.4[JCR-2023],14.8[5-Year]) |
ISSN | 0002-7863 |
EISSN | 1520-5126 |
卷号 | 145期号:48页码:26287-26295 |
发表状态 | 已发表 |
DOI | 10.1021/jacs.3c09413 |
摘要 | Surface reconstruction can rearrange the surface atoms of a crystal without the need of growth processes and has the potential to synthesize crystals with novel morphologies and facets that cannot be obtained through regular synthesis. However, little is known about the molecular mechanisms of the surface reconstruction process. Here, utilizing surface reconstruction, we report the synthesis of nonpolar facets (110) facets)-terminated dodecahedral zinc-blende CdSe/CdS core/shell quantum dots. The morphology transformation is achieved by first fully exchanging the cadmium carboxylate ligand with oleylamine and then undergoing surface reconstruction. The surface reconstruction-induced morphology transformation is confirmed by transmission electron microscopy and absorption spectroscopy. Details of kinetic experiments and simulation results demonstrated that successful surface reconstruction must be assisted by a proton shuttle. Except for the first report on zinc-blende quantum dots terminated with (110) facets, the surface reconstruction aided by the proton shuttle offers valuable insights for devising methods to regulate the properties of nanocrystals. © 2023 American Chemical Society. |
关键词 | Absorption spectroscopy Cadmium compounds Carboxylation High resolution transmission electron microscopy II-VI semiconductors Morphology Semiconductor quantum dots Zinc Zinc sulfide CdSe/CdS (core-shell) quantum dots Growth process Molecular mechanism Morphology transformations Non-polar Novel morphologies Proton shuttle Surface atoms Surfaces reconstruction Zinc-blende CdSe |
收录类别 | EI |
语种 | 英语 |
出版者 | American Chemical Society |
EI入藏号 | 20235015214771 |
EI主题词 | Nanocrystals |
EI分类号 | 546.3 Zinc and Alloys ; 712.1 Semiconducting Materials ; 714.2 Semiconductor Devices and Integrated Circuits ; 741.3 Optical Devices and Systems ; 761 Nanotechnology ; 802.2 Chemical Reactions ; 804.2 Inorganic Compounds ; 931.2 Physical Properties of Gases, Liquids and Solids ; 933.1 Crystalline Solids ; 951 Materials Science |
原始文献类型 | Article in Press |
引用统计 | 正在获取...
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文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/347903 |
专题 | 物质科学与技术学院 物质科学与技术学院_硕士生 物质科学与技术学院_PI研究组_濮超丹组 |
通讯作者 | Pu, Chaodan |
作者单位 | School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
第一作者的第一单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Zhou, Xiaolan,Pu, Chaodan. Proton Shuttle-Assisted Surface Reconstruction toward Nonpolar Facets-Terminated Zinc-Blende CdSe/CdS Core/Shell Quantum Dots[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2023,145(48):26287-26295. |
APA | Zhou, Xiaolan,&Pu, Chaodan.(2023).Proton Shuttle-Assisted Surface Reconstruction toward Nonpolar Facets-Terminated Zinc-Blende CdSe/CdS Core/Shell Quantum Dots.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,145(48),26287-26295. |
MLA | Zhou, Xiaolan,et al."Proton Shuttle-Assisted Surface Reconstruction toward Nonpolar Facets-Terminated Zinc-Blende CdSe/CdS Core/Shell Quantum Dots".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 145.48(2023):26287-26295. |
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