Quaternary Culn(S1-xSex)2 Nanocrystals: Facile Heating-Up Synthesis, Band Gap Tuning, and Gram-Scale Production

被引：119

作者：

Chiang, Ming-Yi ^{[1
]}

Chang, Shu-Hao ^{[1
]}

Chen, Chia-Yu ^{[1
]}

Yuan, Fang-Wei ^{[1
]}

Tuan, Hsing-Yu ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 30013, Taiwan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 05期

关键词：

SOLAR-CELLS; CHALCOPYRITE SEMICONDUCTORS; CUINSE2; NANOCRYSTALS; OPTICAL-PROPERTIES; FILMS; INKS; LUMINESCENCE; ROUTE; CDSE; CDTE;

D O I：

10.1021/jp1090735

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：

Tetragonal chalcopyrite Culn(S1-xSex)(2) (0 <= x <= 1) nanocrystals were synthesized by reacting a mixture of CuCl, InCl3, S, and Se in the presence of oleylamine at 265 degrees C. The S/Se composition ratio in the CuIn(S1-xSex)(2) could be tuned across the entire composition range of x from 0 to 1 by modulating the S/Se reactant mole ratio. The tetragonal lattice constants, that is, a and c, increase linearly with the increase of Se content, following Vegard's law. The band gap energies of CuIn(S1-xSex)(2) nanoaystals could be tuned in the range between 0.98 and 1.46 eV and change nonlinearly with respect to x, deriving a bowing parameter of 0.17 eV. In addition, the method developed in this study was scalable to achieve gram-scale production of stoichiometry-controlled CuIn(S1-xSex)(2) and CuIn1-xGaxSe2 nanocrystals.

引用

页码：1592 / 1599

页数：8

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