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Increasing demands for renewable sources of energy has been a major driving force for developing efficient thermoelectric materials. Two-dimensional (2D) transition-metal dichalcogenides (TMDC) have emerged as promising candidates for…

Materials Science · Physics 2023-05-24 Sathwik Bharadwaj , Ashwin Ramasubramaniam , L. R. Ram-Mohan

Two-dimensional (2D) materials are highly promising for tunnel field effect transistors (TFETs) with low subthreshold swing and high drive current because the shorter tunnel distance and strong gate controllability can be expected from the…

Density functional theory calculations are used to show that it is possible to dope semiconducting transition metal dichalcogenides (TMD) such as MoS$_2$ and WS$_2$ with electrons and/or holes either by chemical substitution or by…

Mesoscale and Nanoscale Physics · Physics 2014-09-16 A. Carvalho , A. H. Castro Neto

Two-dimensional layered materials, such as transition metal dichalcogenides (TMDCs), are promising materials for future electronics owing to their unique electronic properties. With the presence of a band gap, atomically thin gate defined…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Xiang-Xiang Song , Di Liu , Vahid Mosallanejad , Jie You , Tian-Yi Han , Dian-Teng Chen , Hai-Ou Li , Gang Cao , Ming Xiao , Guang-Can Guo , Guo-Ping Guo

Mono- and few-layer transition-metal dichalcogenides (TMDCs) provide opportunities for ideal two-dimensional semiconductors for electronic and optoelectronic devices. For electronic devices on TMDCs, it is essential to incorporate n- and/or…

Materials Science · Physics 2019-08-14 Sehoon Oh , June Yeong Lim , Seongil Im , Hyoung Joon Choi

Transition metal dichalcogenides (TMDs) are layered semiconductors with indirect band gaps comparable to Si. These compounds can be grown in large area, while their gap(s) can be tuned by changing their chemical composition or by applying a…

The p-n diodes represent the most fundamental device building block for diverse optoelectronic functions, but are difficult to achieve in atomically thin transition metal dichalcogenides (TMDs) due to the inability to selectively dope them…

Mesoscale and Nanoscale Physics · Physics 2014-09-17 Rui Cheng , Dehui Li , Hailong Zhou , Chen Wang , Anxiang Yin , Shan Jiang , Yuan Liu , Yu Chen , Yu Huang , Xiangfeng Duan

In recent years, layered transition-metal dichalcogenides (TMDs) have attracted considerable attention because of their rich physics; for example, these materials exhibit superconductivity, charge density waves, and the valley Hall effect.…

Two dimensional materials such as graphene and transition metal dichalcogenides (TMDs) are promising for optical modulation, detection, and light emission since their material properties can be tuned on-demand via electrostatic doping. The…

Superconducting layered transition metal dichalcogenides (TMDs) stand out among other superconductors due to the tunable nature of the superconducting transition, coexistence with other collective electronic excitations (charge density…

Layered van der Waals transition metal dichalcogenides (TMDCs), generally composed of three atomic X-M-X planes in each layer (M = transition metal, X = chalcogen), provide versatile platforms for exploring diverse quantum phenomena. In…

Mesoscale and Nanoscale Physics · Physics 2024-05-28 Ya-Xin Zhao , Zi-Yi Han , Ya-Ning Ren , Ruo-Han Zhang , Xiao-Feng Zhou , Yu Zhang , Lin He

With the rapid expansion of the Internet of Things (IoT), efficient and durable energy harvesters for powering IoT devices operating indoors and outdoors are imperative. Promising materials for indoor photovoltaic (PV) technologies include…

Materials Science · Physics 2025-05-28 Frederick U. Nitta , Koosha Nassiri Nazif , Eric Pop

Transition metal dichalcogenides (TMDs) are a branch of two-dimensional materials which in addition to having an easy-to-exfoliate layered structure, also host semiconducting, metallic, superconducting, and topological properties in various…

Superconductivity · Physics 2023-01-25 Suvodeep Paul , Saswata Talukdar , Ravi Shankar Singh , Surajit Saha

We present a study on the modification of the electronic structure and hole-doping effect for the layered dichalcogenide WSe_2 with a multi-valley band structure, where Ta is doped on the W site along with a partial substitution of Te for…

Materials Science · Physics 2015-02-20 M. Kriener , A. Kikkawa , T. Suzuki , R. Akashi , R. Arita , Y. Tokura , Y. Taguchi

Transition metal dichalcogenides (TMDs) are considered an advantageous alternative to their celebrated two-dimensional (2D) van der Waals akin compound, graphene, for a number of applications, especially those requiring a gapped and…

Materials Science · Physics 2025-02-18 I. Pallecchi , N. Manca , B. Patil , L. Pellegrino , D. Marre'

Tungsten ditelluride (WTe2) has attracted significant attention due to its interesting electronic properties, such as the unsaturated magnetoresistance and superconductivity. Recently, it has been proposed to be a new type of Weyl…

Two-dimensional (2D) transition metal dichalcogenides (TMDs) are attractive nanomaterials for quantum information applications due to single photon emission (SPE) from atomic defects, primarily tungsten diselenide (WSe2) monolayers. Defect…

Monolayers of semiconducting transition metal dichalcogenides (TMDs) have long attracted interest for their intriguing optical and electronic properties. Recently TMDs in their quasi-bulk form have started to show considerable promise for…

Two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDs) are good candidates for high-performance flexible electronics. However, most demonstrations of such flexible field-effect transistors (FETs) to date have been on…

Two-dimensional (2D) semiconductors are likely to dominate next-generation electronics due to their advantages in compactness and low power consumption. However, challenges such as high contact resistance and inefficient doping hinder their…

Materials Science · Physics 2024-10-11 Raagya Arora , Ariel R. Barr , Daniel T. Larson , Michele Pizzochero , Efthimios Kaxiras