Contribution of electron-phonon coupling to the luminescence spectra of single colloidal quantum dots

被引：12
作者：
Podshivaylov, Eduard A. [1 ]
Kniazeva, Maria A. [1 ]
Gorshelev, Aleksei A. [2 ]
Eremchev, Ivan Yu. [2 ]
Naumov, Andrei V. [2 ,3 ]
Frantsuzov, Pavel A. [1 ,4 ]
机构：
[1] Lomonosov Moscow State Univ, Moscow 119991, Russia
[2] RAS, Inst Spect, Moscow 108840, Russia
[3] Moscow State Pedag Univ, Moscow 119991, Russia
[4] RAS, SB, Voevodsky Inst Chem Kinet & Combust, Novosibirsk 630090, Russia
来源：
JOURNAL OF CHEMICAL PHYSICS | 2019年 / 151卷 / 17期
基金：
俄罗斯科学基金会; 俄罗斯基础研究基金会;
关键词：
FLUORESCENCE INTERMITTENCY; TEMPERATURE-DEPENDENCE; SPECTROSCOPY; DIFFUSION; MOLECULES;
D O I：
10.1063/1.5124913
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Luminescence spectroscopy experiments were realized for single colloidal quantum dots CdSe/ZnS in a broad temperature range above room temperature in a nitrogen atmosphere. Broadening and shifts of spectra due to the temperature change as well as due to spectral diffusion processes were detected and analyzed. A linear correlation between the positions of maxima and the squared linewidths of the spectra was found. This dependence was explained by a model that takes into account the slow variation of the electron-phonon coupling strength.
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页数：7
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