Micro-Defects in Monolayer MoS2 Studied by Low-Temperature Magneto-Raman Mapping

2020 ◽  
Vol 124 (31) ◽  
pp. 17418-17422
Author(s):  
Yang Yang ◽  
Wuguo Liu ◽  
Zhongtao Lin ◽  
Ke Zhu ◽  
Shibing Tian ◽  
...  
Keyword(s):  
Low Temperature ◽  
Raman Mapping ◽  
Monolayer Mos2

Hall and Nernst effects in monolayer MoS2

2016 ◽  
Vol 30 (08) ◽  
pp. 1650041 ◽  
Author(s):  
Yun-Hai Zhang ◽  
Ming-Hua Zhang
Keyword(s):  
Low Temperature ◽  
Temperature Gradient ◽  
Spin Orbit ◽  
Zero Temperature ◽  
Monolayer Mos2 ◽  
Orbit Splitting ◽  
Berry Curvature ◽  
System Transition ◽  
Spin Orbit Splitting ◽  
Study Hall

We study Hall and Nernst transports in monolayer MoS2based on Green’s function formalism. We have derived analytical results for spin and valley Hall conductivities in the zero temperature and spin and valley Nernst conductivities in the low temperature. We found that tuning of the band gap and spin-orbit splitting can drive system transition from spin Hall insulator (SHI) to valley Hall insulator (VHI). When the system is subjected to a temperature gradient, the spin and valley Nernst conductivities are dependent on Berry curvature.

scholarly journals Low-temperature photocarrier dynamics in monolayer MoS2

2011 ◽  
Vol 99 (10) ◽  
pp. 102109 ◽  
Author(s):  
T. Korn ◽  
S. Heydrich ◽  
M. Hirmer ◽  
J. Schmutzler ◽  
C. Schüller
Keyword(s):  
Low Temperature ◽  
Monolayer Mos2

Low-Temperature Ohmic Contact to Monolayer MoS2 by van der Waals Bonded Co/h-BN Electrodes

Nano Letters ◽  
2017 ◽  
Vol 17 (8) ◽  
pp. 4781-4786 ◽  
Author(s):  
Xu Cui ◽  
En-Min Shih ◽  
Luis A. Jauregui ◽  
Sang Hoon Chae ◽  
Young Duck Kim ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ohmic Contact ◽  
Van Der Waals ◽  
Monolayer Mos2

scholarly journals Low-temperature annihilation rate for quasilocalized excitons in monolayer MoS2

2019 ◽  
Vol 100 (15) ◽  
Author(s):  
Eric Chatterjee ◽  
Daniel B. S. Soh ◽  
Christopher Rogers ◽  
Dodd J. Gray ◽  
Hideo Mabuchi
Keyword(s):  
Low Temperature ◽  
Annihilation Rate ◽  
Monolayer Mos2

scholarly journals Excitons, trions and Rydberg states in monolayer MoS2 revealed by low-temperature photocurrent spectroscopy

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Daniel Vaquero ◽  
Vito Clericò ◽  
Juan Salvador-Sánchez ◽  
Adrián Martín-Ramos ◽  
Elena Díaz ◽  
...  
Keyword(s):  
Low Temperature ◽  
Excited States ◽  
Rydberg States ◽  
Spectral Lines ◽  
Spectral Features ◽  
Two Dimensional ◽  
Monolayer Mos2 ◽  
Rydberg Series ◽  
Photocurrent Spectroscopy ◽  
Excitonic Transitions

Abstract Exciton physics in two-dimensional semiconductors are typically studied by photoluminescence spectroscopy. However, this technique does not allow for direct observation of non-radiating excitonic transitions. Here, we use low-temperature photocurrent spectroscopy as an alternative technique to investigate excitonic transitions in a high-quality monolayer MoS2 phototransistor. The resulting spectra presents excitonic peaks with linewidths as low as 8 meV. We identify spectral features corresponding to the ground states of neutral excitons ($${\mathrm{X}}_{1{\mathrm{s}}}^{\mathrm{A}}$$ X 1 s A and $${\mathrm{X}}_{1{\mathrm{s}}}^{\mathrm{B}}$$ X 1 s B ) and charged trions (TA and TB) as well as up to eight additional spectral lines at energies above the $${\mathrm{X}}_{1{\mathrm{s}}}^{\mathrm{B}}$$ X 1 s B transition, which we attribute to the Rydberg series of excited states of XA and XB. The intensities of the spectral features can be tuned by the gate and drain-source voltages. Using an effective-mass theory for excitons in two-dimensional systems we are able to accurately fit the measured spectral lines and unambiguously associate them with their corresponding Rydberg states.

scholarly journals Toward Low-Temperature Solid-Source Synthesis of Monolayer MoS2

2021 ◽  
Author(s):  
Alvin Tang ◽  
Aravindh Kumar ◽  
Marc Jaikissoon ◽  
Krishna Saraswat ◽  
H.-S. Philip Wong ◽  
...  
Keyword(s):  
Low Temperature ◽  
Monolayer Mos2

Low-Temperature Photoluminescence Properties of the Monolayer MoS2 Nanomaterals

2020 ◽  
Vol 212 (1) ◽  
pp. 147-155
Author(s):  
Y. J. Zhai ◽  
X. L. Chen ◽  
J. H. Li ◽  
X. Y. Chu ◽  
Y. Zhang
Keyword(s):  
Low Temperature ◽  
Monolayer Mos2 ◽  
Photoluminescence Properties ◽  
Low Temperature Photoluminescence
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