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通过aminopnictogen前体化学合成的InAs合量子点
Valeriia Grigel1,2, Dorian Dupont1,2, Kim De Nolf1,2
1Physics and Chemistry of Nanostructures, Ghent University , 9000 Ghent, Belgium.
Journal of the American Chemical Society
|October 6, 2016
概括
研究人员使用更安全的aminopnictogen前体开发了一种新的两步合成化物 (InAs) 量子点. 这种方法产生了高质量的InAs量子点,并使发射红外的核心外结构成为可能.
科学领域:
- 体量子点合成
- 半导体纳米材料
- 纳米粒子制造
背景情况:
- 化 (InAs) 量子点 (QD) 提供了潜在的应用,但面临着合成挑战.
- 传统的方法往往涉及危险的前体和复杂的程序.
- II-VI 材料比 InAs 等 III-V QD 更多地受到研究.
研究的目的:
- 开发一种更安全,更有效的InAs量子点合成方法.
- 探索使用aminopnictogen前体用于InAs QD制造.
- 为了创建红外发射InAs/ZnS(e) 核心外量子点.
主要方法:
- 使用氨基作为前体的两步合成.
- 在合成中使用氨基素作为降解剂.
- 实施核心外QD形成的外涂层程序.
主要成果:
- 实现了具有狭窄尺寸分散的最先进的InAs量子点.
- 在合成QD的频段间隙范围内表现出控制.
- 在红外频谱中成功制造了InAs/ZnS(e) 核心外QD.
结论:
- 使用aminopnictogen前体的新合成方法简化了InAs量子点的生产.
- 这种方法可以产生高质量的INAQD,适用于先进的应用.
- 这种方法可能为合成各种III-V量子点铺平道路.
相关概念视频
Structural Isomerism
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Preparation of Diols and Pinacol Rearrangement
Compounds bearing two hydroxyl groups are known as diols. When the hydroxyl groups are located on adjacent carbon atoms, the diols are called vicinal diols or glycols. Under acidic conditions, vicinal diols undergo a specific reaction called pinacol rearrangement.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.

