Degenerate n-Doping of Few-Layer Transition Metal Dichalcogenides by Potassium

Nano Letters ◽  
2013 ◽  
Vol 13 (5) ◽  
pp. 1991-1995 ◽  
Author(s):  
Hui Fang ◽  
Mahmut Tosun ◽  
Gyungseon Seol ◽  
Ting Chia Chang ◽  
Kuniharu Takei ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Layer Transition ◽  
N Doping ◽  
Metal Dichalcogenides

scholarly journals Exciton g-factors in monolayer and bilayer WSe2 from experiment and theory

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jonathan Förste ◽  
Nikita V. Tepliakov ◽  
Stanislav Yu. Kruchinin ◽  
Jessica Lindlau ◽  
Victor Funk ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Transition Metal Dichalcogenide ◽  
Layer Transition ◽  
General Terms ◽  
Indirect Excitons ◽  
Metal Dichalcogenides ◽  
Experimental Findings ◽  
Experimental And Theoretical Studies

Abstract The optical properties of monolayer and bilayer transition metal dichalcogenide semiconductors are governed by excitons in different spin and valley configurations, providing versatile aspects for van der Waals heterostructures and devices. Here, we present experimental and theoretical studies of exciton energy splittings in external magnetic field in neutral and charged WSe2 monolayer and bilayer crystals embedded in a field effect device for active doping control. We develop theoretical methods to calculate the exciton g-factors from first principles for all possible spin-valley configurations of excitons in monolayer and bilayer WSe2 including valley-indirect excitons. Our theoretical and experimental findings shed light on some of the characteristic photoluminescence peaks observed for monolayer and bilayer WSe2. In more general terms, the theoretical aspects of our work provide additional means for the characterization of single and few-layer transition metal dichalcogenides, as well as their heterostructures, in the presence of external magnetic fields.

Atomic-Scale Chemical Conversion of Single-Layer Transition Metal Dichalcogenides

ACS Nano ◽  
2019 ◽  
Vol 13 (5) ◽  
pp. 5611-5615
Author(s):  
Peng Chen ◽  
Yun-Ting Chen ◽  
Ro-Ya Liu ◽  
Han-De Chen ◽  
Dengsung Lin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Single Layer ◽  
Chemical Conversion ◽  
Atomic Scale ◽  
Layer Transition ◽  
Metal Dichalcogenides

scholarly journals Novel doping alternatives for single-layer transition metal dichalcogenides

2017 ◽  
Vol 122 (18) ◽  
pp. 185102 ◽  
Author(s):  
Nicolas Onofrio ◽  
David Guzman ◽  
Alejandro Strachan
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Single Layer ◽  
Layer Transition ◽  
Metal Dichalcogenides
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