Temperature Dependence of "Elementary Processes" in Doping Semiconductor Nanocrystals

被引：185

作者：

Chen, Dingan ^{[1
,2
]}

Viswanatha, Ranjani ^{[1
]}

Ong, Grace L. ^{[1
]}

Xie, Renguo ^{[1
]}

Balasubramaninan, Mahalingam ^{[3
]}

Peng, Xiaogang ^{[1
]}

机构：

[1] Univ Arkansas, Dept Chem & Biochem, Fayetteville, AR 72701 USA

[2] Southeast Univ, Sch Elect Sci & Engn, Adv Photon Ctr, Nanjing 210096, Peoples R China

[3] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 26期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

CDS/ZNS CORE/SHELL NANOCRYSTALS; CDSE NANOCRYSTALS; QUANTUM DOTS; DOPED NANOCRYSTALS; OPTICAL-PROPERTIES; ZNSE NANOCRYSTALS; MN; EMITTERS; NANOWIRES; EFFICIENT;

D O I：

10.1021/ja9018644

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Controlled doping is a critical step toward various unique nanostructures. This report shall demonstrate that doping chemistry of colloidal nanocrystals is much more complex than what has been proposed in the existing experimental and theoretical reports. Four individual processes, namely "surface adsorption", "lattice incorporation", "lattice diffusion", and "lattice ejection", will be identified, each of which possesses its own critical temperature. A given type of host nanocrystals can be switched from being impossible to dope to becoming successfully doped. The key is to program the reaction temperature to accommodate all elementary processes.

引用

页码：9333 / 9339

页数：7

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