Bright room temperature near-infrared single-photon emission from single point defects in the AlGaN film

2021 ◽  
Vol 118 (13) ◽  
pp. 131103
Author(s):  
Yingxian Xue ◽  
Feiliang Chen ◽  
Zhiyun Fang ◽  
Shiyu Zhang ◽  
Qian Li ◽  
...  
Author(s):  
Siyue Jin ◽  
Xingsheng Xu

Abstract In this report, single-photon emission and ordered multi-photon emission from single colloidal CdTeSe/ZnS quantum dots at near-infrared wavelength were realized at room temperature. The fluorescence lifetime, blinking, and anti-bunching effect of this single quantum dots at different excitation powers were measured. The relationship between the excitation power and the emission of exciton, biexciton and multiexciton of single quantum dots at a wavelength of 800nm was obtained. The physical mechanism of photoluminescence of the single quantum dots was analyzed.


Author(s):  
E Wu ◽  
V. Jacques ◽  
F. Treussart ◽  
H. Zeng ◽  
P. Grangier ◽  
...  

2017 ◽  
Vol 29 (12) ◽  
pp. 1605092 ◽  
Author(s):  
Amanuel M. Berhane ◽  
Kwang-Yong Jeong ◽  
Zoltán Bodrog ◽  
Saskia Fiedler ◽  
Tim Schröder ◽  
...  

2011 ◽  
Vol 99 (25) ◽  
pp. 251106 ◽  
Author(s):  
A. Lohrmann ◽  
S. Pezzagna ◽  
I. Dobrinets ◽  
P. Spinicelli ◽  
V. Jacques ◽  
...  

Nanophotonics ◽  
2017 ◽  
Vol 6 (1) ◽  
pp. 269-278 ◽  
Author(s):  
Kelvin Chung ◽  
Timothy J. Karle ◽  
Asma Khalid ◽  
Amanda N. Abraham ◽  
Ravi Shukla ◽  
...  

AbstractZinc oxide (ZnO) is a promising semiconductor that is suitable for bioimaging applications due to its intrinsic defect fluorescence. However, ZnO generally suffers from poor photostability. We report room-temperature single-photon emission from optical defects found in ZnO nanoparticles (NPs) formed by ion implantation followed by thermal oxidation in a silica substrate. We conduct a thorough investigation into the photophysics of a particularly bright defect and identify other single emitters within the NPs. Photostability was observed when the NPs were removed from the growth substrate and taken up by skin cells for in vitro imaging.


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