scholarly journals Chlorine doping of MoSe2 flakes by ion implantation

Nanoscale ◽  
2021 ◽  
Author(s):  
Slawomir Prucnal ◽  
Arsalan Hashemi ◽  
Mahdi Ghorbani-Asl ◽  
René Hübner ◽  
Juanmei Duan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Ion Implantation ◽  
Electronic Device ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Properties ◽  
Chlorine Doping ◽  
Metal Dichalcogenides ◽  
Efficient Integration ◽  
Device Technology

The efficient integration of transition metal dichalcogenides (TMDs) into the current electronic device technology requires mastering the techniques of effective tuning of their optoelectronic properties. Specifically, controllable doping is essential....

Plasmonic-based sensitivity enhancement of a Goos–Hänchen shift biosensor using transition metal dichalcogenides: a theoretical insight

2020 ◽  
Vol 44 (37) ◽  
pp. 16144-16151 ◽  
Author(s):  
Yan Guo ◽  
Nishtha Manish Singh ◽  
Chandreyee Manas Das ◽  
Qingling Ouyang ◽  
Lixing Kang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Sensitivity Enhancement ◽  
Optoelectronic Properties ◽  
Two Dimension ◽  
Metal Dichalcogenides ◽  
Layered Transition Metal ◽  
Theoretical Insight

Layered transition metal dichalcogenides (TMDCs) within two dimension (2D) have been gaining widespread consideration due to their exclusive optoelectronic properties.

Tailoring the optical properties of atomically-thin WS2via ion irradiation

Nanoscale ◽  
2017 ◽  
Vol 9 (31) ◽  
pp. 11027-11034 ◽  
Author(s):  
L. Ma ◽  
Y. Tan ◽  
M. Ghorbani-Asl ◽  
R. Boettger ◽  
S. Kretschmer ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Ion Irradiation ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Properties ◽  
Two Dimensional ◽  
Metal Dichalcogenides

Two-dimensional transition metal dichalcogenides (TMDCs) exhibit excellent optoelectronic properties.

scholarly journals The highly-efficient light-emitting diodes based on transition metal dichalcogenides: from architecture to performance

2020 ◽  
Vol 2 (10) ◽  
pp. 4323-4340
Author(s):  
Caiyun Wang ◽  
Fuchao Yang ◽  
Yihua Gao
Keyword(s):  
Transition Metal ◽  
Light Emitting Diodes ◽  
Hot Spot ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Properties ◽  
Light Emitting ◽  
Layered Architecture ◽  
Highly Efficient ◽  
Metal Dichalcogenides

Transition metal dichalcogenides (TMDCs) with layered architecture and excellent optoelectronic properties have been a hot spot for light-emitting diodes (LED).

Trap-free exciton dynamics in monolayer WS2 via oleic acid passivation

Nanoscale ◽  
2021 ◽  
Author(s):  
Dabin Lin ◽  
Wenjun Ni ◽  
Gagik G. Gurzadyan ◽  
Fangteng Zhang ◽  
Weiren Zhao ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Transition Metal ◽  
Free Exciton ◽  
Transition Metal Dichalcogenides ◽  
Photonic Devices ◽  
Optoelectronic Properties ◽  
Two Dimensional ◽  
Exciton Dynamics ◽  
The Past ◽  
Metal Dichalcogenides

Two-dimensional transition metal dichalcogenides have attracted tremendous attention in the past few decades due to their attractive optoelectronic properties. However, their widespread utility in photonic devices and components is still...

Defects-related Dynamics of Photoexcited Carriers in 2D Transition Metal Dichalcogenides

2021 ◽  
Author(s):  
Lei Gao ◽  
Zhenliang Hu ◽  
Junpeng Lu ◽  
Hongwei Liu ◽  
Zhenhua Ni
Keyword(s):  
Transition Metal ◽  
Band Structure ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Properties ◽  
Two Dimensional ◽  
Metal Dichalcogenides

Two-dimensional (2D) transition metal dichalcogenides (TMDs) exhibit enormous potential in the field of optoelectronics because of their attractive optoelectronic properties, such as strong excitonic emissions, spin splited band structure, palpable...

Stabilizing the heavily-doped and metallic phase of MoS2 monolayers with surface functionalization

2D Materials ◽  
2021 ◽  
Author(s):  
Hanyu Zhang ◽  
Tamara D Koledin ◽  
Xiang Wang ◽  
Ji Hao ◽  
Sanjini Nanayakkara ◽  
...  
Keyword(s):  
Transition Metal ◽  
Sheet Resistance ◽  
Surface Functionalization ◽  
Indium Tin Oxide ◽  
Photoelectron Spectroscopy ◽  
Transition Metal Dichalcogenides ◽  
Optoelectronic Properties ◽  
Kelvin Probe ◽  
Air Exposure ◽  
Metal Dichalcogenides

Abstract Monolayer molybdenum disulfide (MoS2) is one of the most studied two-dimensional (2D) transition metal dichalcogenides that is being investigated for various optoelectronic properties, such as catalysis, sensors, photovoltaics, and batteries. One such property that makes this material attractive is the ease in which 2D MoS2 can be converted between the semiconducting (2H) and metallic/semi-metallic (1T/1T’) phases or be heavily n-type doped 2H phase with ion intercalation, strain, or excess negative charge. Using n-butyl lithium (BuLi) immersion treatments, we achieve 2H MoS2 monolayers that are heavily n-type doped with shorter immersion times (10 – 120 mins) or conversion to the 1T/1T’ phase with longer immersion times (6 – 24 h); however, these doped/converted monolayers are not stable and promptly revert back to the initial 2H phase upon exposure to air. To overcome this issue and maintain the modification of the monolayer MoS2 upon air exposure, we use BuLi treatments plus surface functionalization p-(CH3CH2)2NPh-MoS2 (Et2N-MoS2)—to maintain heavily n-type doped 2H phase or the 1T/1T’ phase, which is preserved for over 2 weeks when on indium tin oxide (ITO) or sapphire substrates. We also determine that the low sheet resistance and metallic-like properties correlate with the BuLi immersion times. These modified MoS2 materials are characterized with confocal Raman/photoluminescence, absorption, X-ray photoelectron spectroscopy as well as scanning Kelvin probe microscopy, scanning electrochemical microscopy, and four-point probe sheet resistance measurements to quantify the differences in the monolayer optoelectronic properties. We will demonstrate chemical methodologies to control the modified monolayer MoS2 that likely extend to other 2D transition metal dichalcogenides, which will greatly expand the uses for these nanomaterials.

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