Two dimensional numerical simulations of carrier dynamics during time-resolved photoluminescence decays in two-photon microscopy measurements in semiconductors

2015 ◽  
Vol 118 (4) ◽  
pp. 045709 ◽  
Author(s):  
Ana Kanevce ◽  
Darius Kuciauskas ◽  
Dean H. Levi ◽  
Alyssa M. Allende Motz ◽  
Steven W. Johnston
Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 737
Author(s):  
Fang-I Lai ◽  
Jui-Fu Yang ◽  
Wei-Chun Chen ◽  
Dan-Hua Hsieh ◽  
Woei-Tyng Lin ◽  
...  

In this study, we report the optical properties and carrier dynamics of different surface dimensionality n-type wurtzite InN with various carrier concentrations using photoluminescence (PL) and an energy-dependent, time-resolved photoluminescence (ED-TRPL) analysis. Experimental results indicated that the InN morphology can be controlled by the growth temperature, from one-dimensional (1D) nanorods to two-dimensional (2D) films. Moreover, donor-like nitrogen vacancy (VN) is responsible for the increase in carrier concentration due to the lowest formation energies in the n-type InN samples. The PL results also reveal that the energies of emission peaks are higher in the InN samples with 2D features than that with 1D features. These anomalous transitions are explained as the recombination of Mahan excitons and localized holes, and further proved by a theoretical model, activation energy and photon energy-dependent lifetime analysis.


Nanoscale ◽  
2015 ◽  
Vol 7 (16) ◽  
pp. 7402-7408 ◽  
Author(s):  
Long Yuan ◽  
Libai Huang

We systematically investigate the exciton dynamics in monolayered, bilayered, and trilayered WS2 two-dimensional (2D) crystals by time-resolved photoluminescence (TRPL) spectroscopy.


2020 ◽  
Vol 12 (23) ◽  
pp. 26384-26390
Author(s):  
Chunhua Zhou ◽  
Weijian Chen ◽  
Shuang Yang ◽  
Qingdong Ou ◽  
Zhixing Gan ◽  
...  

2007 ◽  
Vol 72 (4) ◽  
pp. 422-429 ◽  
Author(s):  
M. Hörbelt ◽  
C. Wotzlaw ◽  
T.A. Sutton ◽  
B.A. Molitoris ◽  
T. Philipp ◽  
...  

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