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Atomically thin transition metal dichalcogenides (TMDs) possess a number of properties that make them attractive for realizing room-temperature polariton devices. An ideal platform for manipulating polariton fluids within monolayer TMDs is…

Developments in optoelectronics and spin-optronics based on transition metal dichalcogenide monolayers (MLs) need materials with efficient optical emission and well-defined transition energies. In as-exfoliated MoS2 MLs the…

Ultrathin transition metal dichalcogenides (TMDCs) of Mo and W show great potential for digital electronics and optoelectronic applications. Whereas early studies were limited to mechanically exfoliated flakes, the large-area synthesis of…

Two-dimensional transition metal dichalcogenides (TMDCs) have recently become attractive semiconductor materials for several optoelectronic applications, such as photodetection, light harvesting, phototransistors, light-emitting diodes, and…

Optics · Physics 2018-07-04 Alex Krasnok , Sergey Lepeshov , Andrea Alú

Two-dimensional (2D) transition metal dichalcogenide (TMD) nanosheets exhibit remarkable electronic and optical properties. The 2D features, sizable bandgaps, and recent advances in the synthesis, characterization, and device fabrication of…

Materials Science · Physics 2015-02-04 Xin Zhang , Xiao-Fen Qiao , Wei Shi , Jiang-Bin Wu , De-Sheng Jiang , Ping-Heng Tan

Due to their intriguing optical properties, including stable and chiral excitons, two-dimensional transition metal dichalcogenides (2D-TMDs) hold the promise of applications in nanophotonics. Chemical vapor deposition (CVD) techniques offer…

Optics · Physics 2021-11-11 Irina Komen , Sabrya E. van Heijst , Sonia Conesa-Boj , L. Kuipers

Breaking space-time symmetries in two-dimensional crystals (2D) can dramatically influence their macroscopic electronic properties. Monolayer transition-metal dichalcogenides (TMDs) are prime examples where the intrinsically broken crystal…

Mesoscale and Nanoscale Physics · Physics 2015-09-04 Edbert J. Sie , James W. McIver , Yi-Hsien Lee , Liang Fu , Jing Kong , Nuh Gedik

Atomic monolayers of transition metal dichalcogenides represent an emerging material platform for the implementation of ultra compact quantum light emitters via strain engineering. In this framework, we discuss experimental results on…

Monolayer two-dimensional transitional metal dichalcogenides, such as MoS2, WS2 and WSe2, are direct band gap semiconductors with large exciton binding energy. They attract growing attentions for opto-electronic applications including solar…

Mesoscale and Nanoscale Physics · Physics 2017-10-05 Shoujun Zheng , Jinkyu So , Fucai Liu , Zheng Liu , Nikolay Zheludev , Hong Jin Fan

Monolayers of semiconducting transition metal dichalcogenides are a strongly emergent platform for exploring quantum phenomena in condensed matter, building novel opto-electronic devices with enhanced functionalities. Due to their atomic…

Second-order nonlinearity in solids gives rise to a plethora of unique physical phenomena ranging from piezoelectricity and optical rectification to optical parametric amplification, spontaneous parametric down-conversion, and the…

Monolayer (1L) transition metal dichalcogenides (TMDC) are of strong interest in nanophotonics due to their narrow-band intense excitonic transitions persisting up to room temperature. When brought into resonance with surface plasmon…

Engineering optical emission from two dimensional, transition metal dichalcogenides (TMDs) materials such as Tungsten disulphide (WS2) has implications in creating and understanding nanophotonic sources. One of the challenges in controlling…

We report a strain-induced direct-to-indirect band gap transition in mechanically deformed WS2 monolayers (MLs). The necessary amount of strain is attained by proton irradiation of bulk WS2 and the ensuing formation of one-ML-thick,…

Materials Science · Physics 2020-01-29 E. Blundo , M. Felici , T. Yildirim , G. Pettinari , D. Tedeschi , A. Miriametro , B. Liu , W. Ma , Y. Lu , A. Polimeni

In this letter we report on the synthesis of monolayers of MoS$_2$ via chemical vapor deposition directly on thin films of Al$_2$O$_3$ grown by spatial atomic layer deposition. The synthesized monolayers are characterized by atomic force…

There is a substantial interest in the heterostructures of semiconducting transition metal dichalcogenides (TMDCs) amongst each other or with arbitrary materials, through which the control of the chemical, structural, electronic,…

Transition metal dichalcogenides (TMD) like MoSe$_2$ exhibit remarkable optical properties such as intense photoluminescence (PL) in the monolayer form. To date, narrow-linewidth PL is only achieved in micrometer-sized exfoliated TMD flakes…

Materials Science · Physics 2024-07-19 C. Vergnaud , V. Tiwari , L. Ren , T. Taniguchi , K. Watanabe , H. Okuno , I. Gomes de Moraes , A. Marty , C. Robert , X. Marie , M. Jamet

Because of their bandgap tunability and strong light-matter interactions, two-dimensional (2D) semiconductors are considered promising candidates for next-generation optoelectronic devices. However, their photophysical properties are…

Chemical Physics · Physics 2023-02-09 Yanghee Kim , Haneul Kang , Myongin Song , Hyuksang Kwon , Sunmin Ryu

Potential applications of monolayer of transition metal dichalcogenides (TMDs) in optoelectronic and flexible devices are under heavy investigation. Although TMDs monolayers are highly robust to external mechanical fields, their electronic…

Computational Physics · Physics 2021-09-14 Mohammad Bahmani , Michael Lorke , Mahdi Faghihnasiri , Thomas Frauenheim

Atomically thin two-dimensional molybdenum disulfide (MoS2) sheets have attracted much attention due to their potential for future electronic applications. They not only present the best planar electrostatic control in a device, but also…

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