Selective photochemical reaction in an ensemble of CdSe/ZnS quantum rods

Maria V. Mukhina; Vladimir G. Maslov; Alexander V. Baranov; Anatoly V. Fedorov

doi:10.1117/1.OE.53.8.087107

22 August 2014 Selective photochemical reaction in an ensemble of CdSe/ZnS quantum rods

Maria V. Mukhina, Vladimir G. Maslov, Alexander V. Baranov, Anatoly V. Fedorov

Author Affiliations +

Funded by: RFBR, Ministry of Education and Science of the Russian Federation, Government of Russian Federation, Government of the Russian Federation, Russian Government, University of Oulu and Government of Russian Federation, RF Government

Optical Engineering, Vol. 53, Issue 8, 087107 (August 2014). https://doi.org/10.1117/1.OE.53.8.087107

Abstract

An appearance of the photoluminescence anisotropy induced by photochemical reaction under continuous irradiation with polarized light is demonstrated for an ensemble of CdSe/ZnS quantum rods chaotically embedded in the pores of filter paper. A specific relaxation of the photoinduced anisotropy is revealed in darkness after an extended period of irradiation. This process is attributed to rotational diffusion of the nanocrystals in the pores of filter paper. The suggested theoretical model is used to estimate the rotational diffusion constant D , which is calculated to be 9.7×10 ⁻³ s−1 for the sample after 5 h of irradiation.

Citation Download Citation

Maria V. Mukhina, Vladimir G. Maslov, Alexander V. Baranov, and Anatoly V. Fedorov "Selective photochemical reaction in an ensemble of CdSe/ZnS quantum rods," Optical Engineering 53(8), 087107 (22 August 2014). https://doi.org/10.1117/1.OE.53.8.087107

Published: 22 August 2014

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