Temperature-Dependent Carrier Recombination Processes in Nanocrystalline Si/SiO2 Multi-Layers Studied by Time-Resolved and Time-Integrated Photoluminescence

Author(s):  
Suk-Ho Choi ◽  
Sung Kim ◽  
Yong Min Park ◽  
Kyung Joong Kim
Nanoscale ◽  
2019 ◽  
Vol 11 (40) ◽  
pp. 18550-18558 ◽  
Author(s):  
Xiaojun Su ◽  
Xulu Zeng ◽  
Hynek Němec ◽  
Xianshao Zou ◽  
Wei Zhang ◽  
...  

The effect of hydrogen chloride etching on charge recombination processes of indium phosphide nanowires was studied by means of time-resolved spectroscopy.


1989 ◽  
Vol 145 ◽  
Author(s):  
A. Werner ◽  
A. M. Agarwal ◽  
T. D. Moustakas ◽  
M. Kunst

AbstractAlxGa1-xAs films, doped with silicon in the 1 x 1018 cm-3 range, have been prepared in the composition range x = 0.20 - 0.46 by molecular beam epitaxy. The influence of defect states on excess carrier trapping and recombination processes is studied by a contactless transient photoconductivity technique in the microwave region. Effective electron life- times in the 1 x 10-5s range for the 20% Al film down to the 1 x 10-7s range for the 46% Al film were found, indicating a larger density of electron traps in more Al rich films. The decay kinetics in AlGaAs is compared with the decay kinetics in GaAs.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Youngsin Park ◽  
Guanhua Ying ◽  
Robert A. Taylor ◽  
Chan C. Hwang

AbstractWe have characterized the carrier dynamics of the excitonic emission emerging from a monolayer of graphene grown on a Cu(111) surface. Excitonic emission from the graphene, with strong and sharp peaks both with a full-width at half-maximum of 2.7 meV, was observed near ~3.16 and ~3.18 eV at 4.2 K. The carrier recombination parameters were studied by measuring both temperature-dependent and time-resolved photoluminescence. The intensity variation with temperature of these two peaks shows an opposing trend. The time-resolved emission was modelled using coupled differential equations and the decay time was found to be dominated by carrier trapping and Auger recombination as the temperature increased.


2000 ◽  
Vol 104 (17) ◽  
pp. 3964-3973 ◽  
Author(s):  
Sergey A. Nizkorodov ◽  
Warren W. Harper ◽  
Bradley W. Blackmon ◽  
David J. Nesbitt

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44373-44381
Author(s):  
Xiaozhe Wang ◽  
Qi Wang ◽  
Zhijun Chai ◽  
Wenzhi Wu

The thermal properties of FAPbBr3 perovskite nanocrystals (PNCs) is investigated by use of temperature-dependent steady-state/time-resolved photoluminescence and first-principle calculations.


2016 ◽  
Vol 24 (23) ◽  
pp. 26363 ◽  
Author(s):  
Stefano Dominici ◽  
Hanqing Wen ◽  
Francesco Bertazzi ◽  
Michele Goano ◽  
Enrico Bellotti

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