Peculiarities of the nonlinear absorption of colloidal solutions of CdSe/ZnS quantum dots under stationary single-photon excitation of excitons

A. M. Smirnov; A. D. Golinskaya; K. V. Ezhova; M. V. Kozlova; V. N. Mantsevich; V. S. Dneprovskii

doi:10.1134/S1063776117110127

Peculiarities of the nonlinear absorption of colloidal solutions of CdSe/ZnS quantum dots under stationary single-photon excitation of excitons

Authors: Smirnov A.M.¹^,2, Golinskaya A.D.¹, Ezhova K.V.³, Kozlova M.V.¹, Mantsevich V.N.¹, Dneprovskii V.S.¹
Affiliations:
1. Faculty of Physics
2. Kotel’nikov Institute of Radioengineering and Electronics
3. Faculty of Laser and Light Engineering
Issue: Vol 125, No 5 (2017)
Pages: 890-895
Section: Electronic Properties of Solid
URL: https://journals.rcsi.science/1063-7761/article/view/191466
DOI: https://doi.org/10.1134/S1063776117110127
ID: 191466

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Abstract

Peculiarities of the nonlinear absorption of a colloidal solution of CdSe/ZnS quantum dots with various sizes under resonant stationary excitation of the ground electron–hole (exciton) transition have been revealed by the pump and probe technique. The detected peculiarities of the nonlinear change in absorption are explained by the coexistence and competition of the effects of state filling and charge-induced Stark and temperature long-wavelength shift of the absorption spectra.