Strongly Fluorescent Quaternary Cu-In-Zn-S Nanocrystals Prepared from Cu1-xInS2 Nanocrystals by Partial Cation Exchange

被引：294

作者：

De Trizio, Luca ^{[3
,4
]}

Prato, Mirko ^{[4
]}

Genovese, Alessandro ^{[4
]}

Casu, Alberto ^{[4
]}

Povia, Mauro ^{[4
]}

Simonutti, Roberto ^{[3
]}

Alcocer, Marcelo J. P. ^{[1
,2
]}

D'Andrea, Cosimo ^{[1
,2
]}

Tassone, Francesco ^{[1
]}

Manna, Liberato ^{[4
]}

机构：

[1] Ist Italiano Tecnol, Ctr Nanosci & Technol POLIMI, I-20133 Milan, Italy

[2] Politecn Milan, Dept Phys, I-20133 Milan, Italy

[3] Univ Milano Bicocca, Dept Mat Sci, I-20125 Milan, Italy

[4] Ist Italian Tecnol, I-16163 Genoa, Italy

来源：

CHEMISTRY OF MATERIALS | 2012年 / 24卷 / 12期

关键词：

nanocrystals; CIS; CIZS; cation exchange; photoluminescence; XPS; quaternary systems; ONE-POT SYNTHESIS; CORE/SHELL QUANTUM DOTS; LIGHT-EMITTING-DIODES; INP/ZNS NANOCRYSTALS; SOLAR-CELLS; ELECTRONIC-STRUCTURE; CUINS2; NANOCRYSTALS; GENERAL-SYNTHESIS; NANOPARTICLES; PHOTOLUMINESCENCE;

D O I：

10.1021/cm301211e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report a high-yield, low cost synthesis route to colloidal Cu1-xInS2 nanocrystals with a tunable amount of Cu vacancies in the crystal lattice. These are then converted into quaternary Cu-In-Zn-S (CIZS) nanocrystals by partial exchange of Cu+ and In3+ cations with Zn2+ cations. The photoluminescence quantum yield of these CIZS nanocrystals could be tuned up to a record 80%, depending on the amount of copper vacancies.

引用

页码：2400 / 2406

页数：7

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