Spatial mapping of exciton transition energy and strain in composition graded WS2(1−x)Se2x monolayer

2020 ◽  
Vol 128 (12) ◽  
pp. 124304
Author(s):  
Alireza Jalouli ◽  
Muhammed Kilinc ◽  
Peijian Wang ◽  
Hao Zeng ◽  
Tim Thomay
Keyword(s):  
Transition Energy ◽  
Spatial Mapping ◽  
Exciton Transition

Exciton transition energy and temperature dependence of ultrafast relaxation of self-trapped excitons in polydiacetylenes

1993 ◽  
Vol 207 (4-6) ◽  
pp. 461-467 ◽  
Author(s):  
Masayuki Yoshizawa ◽  
Katsuhiko Nishiyama ◽  
Masamichi Fujihira ◽  
Takayoshi Kobayashi
Keyword(s):  
Temperature Dependence ◽  
Transition Energy ◽  
Exciton Transition ◽  
Ultrafast Relaxation

scholarly journals A strain-induced exciton transition energy shift in CdSe nanoplatelets: the impact of an organic ligand shell

Nanoscale ◽  
2017 ◽  
Vol 9 (45) ◽  
pp. 18042-18053 ◽  
Author(s):  
A. Antanovich ◽  
A. W. Achtstein ◽  
A. Matsukovich ◽  
A. Prudnikau ◽  
P. Bhaskar ◽  
...  
Keyword(s):  
Structural Properties ◽  
Transition Energy ◽  
Organic Ligand ◽  
Energy Shift ◽  
Exciton Transition ◽  
Zinc Blende ◽  
Ligand Shell ◽  
The Impact

We study the influence of surface passivating ligands on the optical and structural properties of zinc blende CdSe nanoplatelets.

Nonlinear Optical Spectroscopy of Two-Dimensional WSe2 Nanoflakes

MRS Advances ◽  
2019 ◽  
Vol 4 (10) ◽  
pp. 635-641
Author(s):  
Sergey Lavrov ◽  
Arseniy Buryakov ◽  
Elena Mishina ◽  
Kirill Brekhov ◽  
Nikita Ilyin ◽  
...  
Keyword(s):  
Photon Energy ◽  
Room Temperature ◽  
Transition Energy ◽  
Second Harmonic ◽  
Optical Methods ◽  
Luminescence Spectroscopy ◽  
Exciton Transition ◽  
Nonlinear Optical Spectroscopy ◽  
Force Microscopy ◽  
Atomic Force

ABSTRACTHere we present the results of the exciton states study in WSe2 and MoS2 monolayers. Thin WSe2 and MoS2 films obtained by CVD technique were studied by optical methods. The films two-dimensionality and homogeneity were confirmed by the methods of atomic force microscopy and luminescence spectroscopy. The second harmonic generation (SHG) spectroscopy technique was used for the exciton states study at room temperature in the pump photon energy range of 0.8-1.05 eV. The sevenfold SHG intensity resonance amplification was found for the 1.62 eV and 1.87 eV SHG photon energy for the WSe2 and MoS2 films, respectively, that corresponds to the exciton transition energy. These resonance peaks belong to optical A excitons with 1s energy level.

Role of landmark for spatial mapping in non-rigid environments

2003 ◽  
Author(s):  
C. G. L. Cao ◽  
S. L. Waxberg ◽  
E. Smith
Keyword(s):  
Spatial Mapping
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