Circular Dichroism of Electric-Field-Oriented CdSe/CdS Quantum Dots-in-Rods.
ACS Nano
; 10(9): 8904-9, 2016 09 27.
Article
em En
| MEDLINE
| ID: mdl-27556811
ABSTRACT
Here we report anisotropy of intrinsic chiroptical response in CdSe/CdS quantum dot-in-rod systems. These nanostructures being oriented in an external electric field demonstrate dependence of circular dichroism signal on the orientation of the nanocrystals. The type of circular polarization in these nanostructures correlates with preferential direction of linear polarization, and the degree of circular polarization is the maximal for the first circular dichroism band corresponding to the absorption band edge. We also support our experimental data with a theoretical model. Using this model, we show a direct connection between theoretically derived morphological parameters of twisting in nanocrystals lattices and calculated from experimental data parameters of circular dichroism anisotropy.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
ACS Nano
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Federação Russa