Specifics of the spectral and luminescent properties of ensembles of colloidal quantum dots
- Authors: Brichkin S.B.1, Spirin M.G.1, Mart’yanova E.G.1, Kozhukhina D.A.2, Trepalin V.V.3, Razumov V.F.1,3
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Affiliations:
- Institute of Problems of Chemical Physics
- Lipetsk State Technical University
- Faculty of Fundamental Physicochemical Engineering
- Issue: Vol 50, No 3 (2016)
- Pages: 192-195
- Section: Photonics
- URL: https://journal-vniispk.ru/0018-1439/article/view/156961
- DOI: https://doi.org/10.1134/S0018143916030061
- ID: 156961
Cite item
Abstract
Using colloidal solutions of ZnS-shell indium phosphide quantum dots with two average sizes of 2.1 and 3.0 nm and a size distribution variance of 10%, it has been shown that the luminescence and the luminescence excitation spectra of the colloidal quantum dots substantially depend on the wavelength of exciting light and the detection wavelength, respectively, with both the relationships being nonlinear in character, which may indicate the bimodal type of the size distribution function. Similar measurements for CdSe colloidal quantum dots with an average particle size of dav = 2.5 nm and a variance of 6% have shown that the effect of dependence of the luminescence peak position on the excitation wavelength is manifested to a much lesser extent.
About the authors
S. B. Brichkin
Institute of Problems of Chemical Physics
Author for correspondence.
Email: brichkin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
M. G. Spirin
Institute of Problems of Chemical Physics
Email: brichkin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
E. G. Mart’yanova
Institute of Problems of Chemical Physics
Email: brichkin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432
D. A. Kozhukhina
Lipetsk State Technical University
Email: brichkin@icp.ac.ru
Russian Federation, Moskovskaya ul. 30, Lipetsk, 398600
V. V. Trepalin
Faculty of Fundamental Physicochemical Engineering
Email: brichkin@icp.ac.ru
Russian Federation, Moscow, 119991
V. F. Razumov
Institute of Problems of Chemical Physics; Faculty of Fundamental Physicochemical Engineering
Email: brichkin@icp.ac.ru
Russian Federation, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432; Moscow, 119991
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