Photostability of colloidal single photon emitter in near-infrared regime at room temperature

被引：1
|
作者：
Jin, Si-Yue [1 ,2 ]
Xu, Xing-Sheng [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Key Lab Optoelect Mat & Devices, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Hefei Natl Lab, Hefei 230088, Peoples R China
来源：
CHINESE PHYSICS B | 2024年 / 33卷 / 03期
基金：
中国国家自然科学基金;
关键词：
colloidal quantum dots; single photon source; blinking; 61.46.Df; 61.46.Hk; 78.55.-m; QUANTUM DOTS; BLINKING; EMISSION; DEPENDENCE;
D O I：
10.1088/1674-1056/ad1090
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The photostability of a colloidal single photon emitter in near-infrared regime at room temperature is investigated. The fluorescence lifetime, blinking phenomenon, and anti-bunching effect of a single CdTeSe/ZnS quantum dot with an emission wavelength of 800 nm at room temperature are studied. The second-order correlation function at zero delay time is much smaller than 0.1, which proves that the emission from single quantum dots at 800 nm is a highly pure single-photon source. The effects of the irradiation duration on the fluorescence from single quantum dots are analyzed. The experimental results can be explained by a recombination model including a multi-nonradiative recombination center model and a multi-charged model.
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收藏
页数：6
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