Synthesis of chalcopyrite nanoparticles via thermal decomposition of metal-thiolate

被引：40

作者：

Kino, Takamitsu ^{[1
,2
]}

Kuzuya, Toshihiro ^{[2
]}

Itoh, Keiichi ^{[1
]}

Sumiyama, Kenji ^{[1
]}

Wakamatsu, Takahide ^{[2
]}

Ichidate, Minoru ^{[2
]}

机构：

[1] Nagoya Inst Technol, Dept Mat Sci & Technol, Nagoya, Aichi 4668555, Japan

[2] Meijo Univ, Fac Urban Sci, Kani 5090261, Japan

来源：

MATERIALS TRANSACTIONS | 2008年 / 49卷 / 03期

关键词：

chalcopyrite; copper indium sulfide; nanoparticle; dodecanethiol; photoluminescence;

D O I：

10.2320/matertrans.MBW200724

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CuInS2 nanoparticles (NPs) have been synthesized via thermal decomposition of metal-thiolate in high boiling temperature solvent. This method does not require toxic, unstable and expensive raw materials. Nearly monodispersed NPs with average diameter ranging from 1.8 to 2.8 nm are obtained. The NPs are found to be compositionally copper rich, Cu : In : S = 1.6 : 1.0 : 1.3. They exhibit size-dependent optical properties such as photoluminescence (PL) and optical absorption, indicating quantum confinement effects. In PL spectra, the stokes-shifts (similar to 300 meV) from the absorption band edge and their broad PL spectra indicate that PL is ascribed to a donor-acceptor transition. These results demonstrate that chalcopyrite NPs are promising candidates for luminous and solar cell materials.

引用

页码：435 / 438

页数：4