Excitonic Many-Body Interactions in Two-Dimensional Lead Iodide Perovskite Quantum Wells

2015 ◽  
Vol 119 (26) ◽  
pp. 14714-14721 ◽  
Author(s):  
Xiaoxi Wu ◽  
M. Tuan Trinh ◽  
X.-Y. Zhu
Keyword(s):  
Quantum Wells ◽  
Two Dimensional ◽  
Many Body ◽  
Lead Iodide ◽  
Many Body Interactions

scholarly journals Persistent exciton-type many-body interactions in GaAs quantum wells measured using two-dimensional optical spectroscopy

2012 ◽  
Vol 85 (20) ◽  
Author(s):  
Daniel B. Turner ◽  
Patrick Wen ◽  
Dylan H. Arias ◽  
Keith A. Nelson ◽  
Hebin Li ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Optical Spectroscopy ◽  
Two Dimensional ◽  
Many Body ◽  
Many Body Interactions ◽  
Exciton Type

Possible weakening of the many-body interactions in the organic quasi-two-dimensional metal α-(BETS)2NH4Hg(SCN)4

2009 ◽  
Vol 109 (4) ◽  
pp. 664-666 ◽  
Author(s):  
S. I. Pesotskiĭ ◽  
R. B. Lyubovskiĭ ◽  
M. V. Kartsovnik ◽  
W. Biberacher ◽  
N. D. Kushch ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Many Body ◽  
The Many ◽  
Many Body Interactions

Many-body interactions in GaAs quantum wells studied by pre-pulse 2DFT spectroscopy

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
Hebin Li ◽  
Galan Moody ◽  
Mackillo Kira ◽  
Steven T. Cundiff
Keyword(s):  
Quantum Wells ◽  
Many Body ◽  
Many Body Interactions

Many-body interactions in photo-excited lead iodide perovskite

2015 ◽  
Vol 3 (17) ◽  
pp. 9285-9290 ◽  
Author(s):  
M. Tuan Trinh ◽  
Xiaoxi Wu ◽  
Daniel Niesner ◽  
X.-Y. Zhu
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Semiconductor Material ◽  
Thin Film Solar Cells ◽  
Many Body ◽  
Lead Iodide ◽  
Halide Perovskite ◽  
Many Body Interactions ◽  
Lead Halide

Lead halide perovskite is emerging as a promising semiconductor material for thin film solar cells.

scholarly journals Giant enhancement of exciton diffusivity in two-dimensional semiconductors

2020 ◽  
Vol 6 (51) ◽  
pp. eabb4823
Author(s):  
Yiling Yu ◽  
Yifei Yu ◽  
Guoqing Li ◽  
Alexander A. Puretzky ◽  
David B. Geohegan ◽  
...  
Keyword(s):  
Threshold Value ◽  
Great Promise ◽  
Two Dimensional ◽  
Incident Power ◽  
Many Body ◽  
Device Development ◽  
Exciton Transport ◽  
2D Semiconductors ◽  
Many Body Interactions ◽  
Exciton Scattering

Two-dimensional (2D) semiconductors bear great promise for application in optoelectronic devices, but the low diffusivity of excitons stands as a notable challenge for device development. Here, we demonstrate that the diffusivity of excitons in monolayer MoS2 can be improved from 1.5 ± 0.5 to 22.5 ± 2.5 square centimeters per second with the presence of trapped charges. This is manifested by a spatial expansion of photoluminescence when the incident power reaches a threshold value to enable the onset of exciton Mott transition. The trapped charges are estimated to be in a scale of 1010 per square centimeter and do not affect the emission features and recombination dynamics of the excitons. The result indicates that trapped charges provide an attractive strategy to screen exciton scattering with phonons and impurities/defects. Pointing towards a new pathway to control exciton transport and many-body interactions in 2D semiconductors.

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