Semiconductor Nanocrystal Engineering by Applying Thiol- and Solvent-Coordinated Cation Exchange Kinetics

Bing Bai; Meng Xu; Nan Li; Wenxing Chen; Jiajia Liu; Jia Liu; Hongpan Rong; Dieter Fenske; Jiatao Zhang

doi:10.1002/anie.201807695

Semiconductor Nanocrystal Engineering by Applying Thiol- and Solvent-Coordinated Cation Exchange Kinetics

Bing Bai
, Meng Xu
, Nan Li
, Wenxing Chen
, Jiajia Liu
, Jia Liu
, Hongpan Rong
, Dieter Fenske
, Jiatao Zhang^*

^*Corresponding author for this work

Beijing Institute of Technology
Karlsruhe Institute of Technology

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

Thiol- and solvent-coordinated cation exchange kinetics have been applied to engineer the composition and crystallinity of novel nanocrystals. The detailed thermodynamics and kinetics of the reactions were explored by NMR spectroscopy, time-dependent photoluminescence (PL) characterizations and theoretical simulations. The fine structure of the colloidal semiconductor nanocrystals (CSNCs) was investigated by X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). In this way, high-quality p-type Ag-doped ZnS quantum dots (QDs) and Au@ZnS hetero-nanocrystals with a cubic phase ZnS shell were synthesized successfully.The unprecedented dominant Ag ⁺ -dopant-induced fluorescence and p-type conductivity in the zinc-blende ZnS are reported.

Original language	English
Pages (from-to)	4852-4857
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	58
Issue number	15
DOIs	https://doi.org/10.1002/anie.201807695
Publication status	Published - 1 Apr 2019

Keywords

cation exchange kinetics
colloidal semiconductor nanocrystals
doping
heterostructures
nanocrystal engineering

Access to Document

10.1002/anie.201807695

Cite this

@article{734f42a816a2483da5e5ff3fdadbcdd4,

title = "Semiconductor Nanocrystal Engineering by Applying Thiol- and Solvent-Coordinated Cation Exchange Kinetics",

abstract = " Thiol- and solvent-coordinated cation exchange kinetics have been applied to engineer the composition and crystallinity of novel nanocrystals. The detailed thermodynamics and kinetics of the reactions were explored by NMR spectroscopy, time-dependent photoluminescence (PL) characterizations and theoretical simulations. The fine structure of the colloidal semiconductor nanocrystals (CSNCs) was investigated by X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). In this way, high-quality p-type Ag-doped ZnS quantum dots (QDs) and Au@ZnS hetero-nanocrystals with a cubic phase ZnS shell were synthesized successfully.The unprecedented dominant Ag + -dopant-induced fluorescence and p-type conductivity in the zinc-blende ZnS are reported.",

keywords = "cation exchange kinetics, colloidal semiconductor nanocrystals, doping, heterostructures, nanocrystal engineering",

author = "Bing Bai and Meng Xu and Nan Li and Wenxing Chen and Jiajia Liu and Jia Liu and Hongpan Rong and Dieter Fenske and Jiatao Zhang",

note = "Publisher Copyright: {\textcopyright} 2019 Wiley-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2019",

month = apr,

day = "1",

doi = "10.1002/anie.201807695",

language = "English",

volume = "58",

pages = "4852--4857",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "15",

}

TY - JOUR

T1 - Semiconductor Nanocrystal Engineering by Applying Thiol- and Solvent-Coordinated Cation Exchange Kinetics

AU - Bai, Bing

AU - Xu, Meng

AU - Li, Nan

AU - Chen, Wenxing

AU - Liu, Jiajia

AU - Liu, Jia

AU - Rong, Hongpan

AU - Fenske, Dieter

AU - Zhang, Jiatao

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Thiol- and solvent-coordinated cation exchange kinetics have been applied to engineer the composition and crystallinity of novel nanocrystals. The detailed thermodynamics and kinetics of the reactions were explored by NMR spectroscopy, time-dependent photoluminescence (PL) characterizations and theoretical simulations. The fine structure of the colloidal semiconductor nanocrystals (CSNCs) was investigated by X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). In this way, high-quality p-type Ag-doped ZnS quantum dots (QDs) and Au@ZnS hetero-nanocrystals with a cubic phase ZnS shell were synthesized successfully.The unprecedented dominant Ag + -dopant-induced fluorescence and p-type conductivity in the zinc-blende ZnS are reported.

AB - Thiol- and solvent-coordinated cation exchange kinetics have been applied to engineer the composition and crystallinity of novel nanocrystals. The detailed thermodynamics and kinetics of the reactions were explored by NMR spectroscopy, time-dependent photoluminescence (PL) characterizations and theoretical simulations. The fine structure of the colloidal semiconductor nanocrystals (CSNCs) was investigated by X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). In this way, high-quality p-type Ag-doped ZnS quantum dots (QDs) and Au@ZnS hetero-nanocrystals with a cubic phase ZnS shell were synthesized successfully.The unprecedented dominant Ag + -dopant-induced fluorescence and p-type conductivity in the zinc-blende ZnS are reported.

KW - cation exchange kinetics

KW - colloidal semiconductor nanocrystals

KW - doping

KW - heterostructures

KW - nanocrystal engineering

UR - https://www.scopus.com/pages/publications/85062366938

U2 - 10.1002/anie.201807695

DO - 10.1002/anie.201807695

M3 - Article

C2 - 30199134

AN - SCOPUS:85062366938

SN - 1433-7851

VL - 58

SP - 4852

EP - 4857

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 15

ER -

Semiconductor Nanocrystal Engineering by Applying Thiol- and Solvent-Coordinated Cation Exchange Kinetics

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this