Temperature effects on the spectral properties of colloidal CdSe nanodots, nanorods, and tetrapods

The temp. dependence of the absorption and fluorescence spectra of colloidal CdSe nanocrystals was compared for three different shapes (dots, rods, and tetrapods) at 4-300 K. While the shift of the fluorescence max. indicates little dependence on the shape, 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. [on SciFinder (R)]


Publié dans:
Applied Physics Letters, 90, 9, 093104/1-093104/3
Année
2007
Mots-clefs:
Note:
CAN 146:430622
73-5
Optical, Electron, and Mass Spectroscopy and Other Related Properties
Ecole Polytechnique Federale de Lausanne,Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB-BSP,Lausanne,Switz.
Journal
0003-6951
written in English.
1306-24-7 (Cadmium selenide) Role: PRP (Properties) (temp. effects on spectral properties of colloidal CdSe nanodots, nanorods, and tetrapods)
Laboratoires:




 Notice créée le 2007-05-31, modifiée le 2018-12-03


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