Temperature dependence of the spectral band shape of CdSe nanodots and nanorods

被引:8
作者
Climente, J. I. [1 ]
Planelles, J. [1 ]
Rajadell, F. [1 ]
机构
[1] Univ Jaume 1, Dept Quim Fis & Analit, E-12080 Castellon de La Plana, Spain
来源
PHYSICAL REVIEW B | 2009年 / 80卷 / 20期
关键词
SEMICONDUCTOR NANOCRYSTALS;
D O I
10.1103/PhysRevB.80.205312
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We study theoretically the effect of thermal population on the emission spectrum of single CdSe nanocrystals. Quantum confinement leads to nonsimple emission band shapes, which have different characteristics for excitons, biexcitons, positive, and negative trions. These effects are particularly pronounced in nanorods. The maximum of the emission band is not necessarily centered at the fundamental transition energy.
引用
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页数:5
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共 17 条
[1]   Temperature effects on the spectral properties of colloidal CdSe nanodots, nanorods, and tetrapods [J].
Al Salman, A. ;
Tortschanoff, A. ;
Mohamed, M. B. ;
Tonti, D. ;
van Mourik, F. ;
Chergui, M. .
APPLIED PHYSICS LETTERS, 2007, 90 (09)
[2]   Biexciton luminescence in InAs nanorods [J].
Baskoutas, S ;
Terzis, AF .
JOURNAL OF APPLIED PHYSICS, 2005, 98 (04)
[3]   Temperature dependence of excitonic radiative decay in CdSe quantum dots: The role of surface hole traps [J].
Califano, M ;
Franceschetti, A ;
Zunger, A .
NANO LETTERS, 2005, 5 (12) :2360-2364
[4]   Strong configuration mixing due to dielectric confinement in semiconductor nanorods [J].
Climente, J. I. ;
Royo, M. ;
Movilla, J. L. ;
Planelles, J. .
PHYSICAL REVIEW B, 2009, 79 (16)
[5]   Temperature dependence of band gap in CdSe nanocrystals [J].
Dai, Quanqin ;
Song, Yanli ;
Li, Dongmei ;
Chen, Haiyong ;
Kan, Shihai ;
Zou, Bo ;
Wang, Yingnan ;
Deng, Yongqiang ;
Hou, Yuanyuan ;
Yu, Shidan ;
Chen, Lixue ;
Liu, Bingbing ;
Zou, Guangtian .
CHEMICAL PHYSICS LETTERS, 2007, 439 (1-3) :65-68
[6]   Optical properties of single semiconductor nanocrystals [J].
Gomez, Daniel E. ;
Califano, Marco ;
Mulvaney, Paul .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (43) :4989-5011
[7]   Temperature dependence of the band gap of colloidal CdSe/ZnS core/shell nanocrystals embedded into an ultraviolet curable resin [J].
Joshi, Abhishek ;
Narsingi, K. Y. ;
Manasreh, M. O. ;
Davis, E. A. ;
Weaver, B. D. .
APPLIED PHYSICS LETTERS, 2006, 89 (13)
[8]   Temperature dependence of the exciton transition in semiconductor quantum dots [J].
Liptay, Thomas J. ;
Ram, Rajeev J. .
APPLIED PHYSICS LETTERS, 2006, 89 (22)
[9]   Luminescence photophysics in semiconductor nanocrystals [J].
Nirmal, M ;
Brus, L .
ACCOUNTS OF CHEMICAL RESEARCH, 1999, 32 (05) :407-414
[10]   Excitons, Biexcitons, and Trions in CdSe Nanorods [J].
Rajadell, F. ;
Climente, J. I. ;
Planelles, J. ;
Bertoni, A. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (26) :11268-11272