Temperature dependence of band gap in CdSe nanocrystals

被引：52

作者：

Dai, Quanqin

Song, Yanli

Li, Dongmei

Chen, Haiyong

Kan, Shihai ^{[1
]}

Zou, Bo

Wang, Yingnan

Deng, Yongqiang

Hou, Yuanyuan

Yu, Shidan

Chen, Lixue

Liu, Bingbing

Zou, Guangtian

机构：

[1] Jilin Univ, Natl Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Jilin Univ, Dept Chem, Alan G Macdiarmid Lab, Changchun 130012, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 439卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2007.03.034

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 experimental results on the temperature dependence of band gap in size-controlled CdSe nanocrystals. Such temperature-dependent property is also size-dependent. Within a certain temperature range, the band gap absorption peak position (lambda in nm) of CdSe nanocrystals with a given particle size (D) can be expressed as a simple linear function of temperature (T in K): lambda = 0.1 T + C (D, 298 K). This function is practically applicable to any particle size and temperature. A comparison reveals that the band gap values calculated using this function are in agreement with the experimental ones reported previously. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：65 / 68

页数：4

共 23 条

[1] RESONANCE RAMAN-SCATTERING AND OPTICAL-ABSORPTION STUDIES OF CDSE MICROCLUSTERS AT HIGH-PRESSURE [J].