Nonlinear optical response of planar and spherical CdSe nanocrystals
- 作者: Selyukov A.1, Isaev A.1, Vitukhnovsky A.1,2,3, Litvak V.2, Katsaba A.1,4, Korshunov V.4, Vasiliev R.5
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隶属关系:
- Lebedev Physical Institute
- Moscow Institute of Physics and Technology (State University)
- National Research Nuclear University MEPhI
- Bauman Moscow State Technical University
- Moscow State University
- 期: 卷 50, 编号 7 (2016)
- 页面: 947-950
- 栏目: Microcrystalline, Nanocrystalline, Porous, and Composite Semiconductors
- URL: https://journals.rcsi.science/1063-7826/article/view/197479
- DOI: https://doi.org/10.1134/S1063782616070228
- ID: 197479
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详细
The nonlinear optical response of a colloidal solution of planar CdSe semiconductor nanocrystals (nanoplatelets) is studied for the first time. The nonlinear optical response of these nanoparticles is compared to that of spherical CdSe nanocrystals (quantum dots). The photoinduced nonlinearity is attributed to the optical generation of long-lived charge carriers in the nanoobjects under study. It is shown that, upon the exposure of a cell with the solution of nanoparticles to focused continuous-wave (cw) laser radiation with a wavelength of 473 nm, the nonlinear optical responses of CdSe nanoplatelets and quantum dots are somewhat different at identical optical densities at the above-indicated wavelength. The differences are supposedly associated with a higher diffusion rate of spherical nanoparticles in the solution because of their smaller size compared to that of nanoplatelets.
作者简介
A. Selyukov
Lebedev Physical Institute
编辑信件的主要联系方式.
Email: bachelor89@inbox.ru
俄罗斯联邦, Moscow, 119991
A. Isaev
Lebedev Physical Institute
Email: bachelor89@inbox.ru
俄罗斯联邦, Moscow, 119991
A. Vitukhnovsky
Lebedev Physical Institute; Moscow Institute of Physics and Technology (State University); National Research Nuclear University MEPhI
Email: bachelor89@inbox.ru
俄罗斯联邦, Moscow, 119991; Dolgoprudnyi, Moscow region, 141700; Moscow, 115409
V. Litvak
Moscow Institute of Physics and Technology (State University)
Email: bachelor89@inbox.ru
俄罗斯联邦, Dolgoprudnyi, Moscow region, 141700
A. Katsaba
Lebedev Physical Institute; Bauman Moscow State Technical University
Email: bachelor89@inbox.ru
俄罗斯联邦, Moscow, 119991; Moscow, 105005
V. Korshunov
Bauman Moscow State Technical University
Email: bachelor89@inbox.ru
俄罗斯联邦, Moscow, 105005
R. Vasiliev
Moscow State University
Email: bachelor89@inbox.ru
俄罗斯联邦, Moscow, 119992