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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Temperature effects on the spectral properties of colloidal CdSe nanodots, nanorods, and tetrapods
Applied Physics Letters, Volume 90, No. 9, Article 093104, Year 2007
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Description
The temperature dependence of the absorption and fluorescence spectra of colloidal CdSe nanocrystals was compared for three different shapes (dots, rods, and tetrapods) in the range of 4-300 K. While the shift of the fluorescence maximum indicates little dependence on the shape, the authors find that the broadening of the emission spectrum behaves very differently for dots and rods, indicating major differences in the broadening mechanisms for different shapes. Tetrapods behave more similarly to dots, which suggests that the lowest exciton state is centered at the core. © 2007 American Institute of Physics.
Authors & Co-Authors
al-Salman, Awos
Switzerland, Lausanne
École Polytechnique Fédérale de Lausanne
Tortschanoff, Andreas
Switzerland, Lausanne
École Polytechnique Fédérale de Lausanne
Mohamed, Mona Bakr
Switzerland, Lausanne
École Polytechnique Fédérale de Lausanne
Egypt, Giza
National Institute of Laser Enhanced Sciences
Tonti, Dino
Switzerland, Lausanne
École Polytechnique Fédérale de Lausanne
Spain, Madrid
Csic - Instituto de Ciencia de Materiales de Madrid Icmm
van Mourik, Frank
Switzerland, Lausanne
École Polytechnique Fédérale de Lausanne
Chergui, Majed
Switzerland, Lausanne
École Polytechnique Fédérale de Lausanne
Statistics
Citations: 139
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1063/1.2696687
ISSN:
00036951
Research Areas
Environmental