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Substitutional transition metal (TM) point defects have recently been controllably introduced in two-dimensional (2D) transition metal dichalcogenides. We identify quantum defect candidates through a first-principles materials discovery…

Materials Science · Physics 2025-10-13 Jingda Zhang , Su Ying Quek

Monolayer Transition Metal Dichalcogenides (TMDCs) are promising candidates for quantum technologies, such as quantum dots, because they are truly two-dimensional semiconductors with a direct band gap. In this work, we analyse theoretically…

Mesoscale and Nanoscale Physics · Physics 2018-02-28 Alessandro David , Guido Burkard , Andor Kormányos

Transition metal dichalcogenides (TMDs) are regarded as a possible materials platform for quantum information science and related device applications. In TMD monolayers, the dephasing time and inhomogeneity are crucial parameters for any…

Localized quantum emitters in transition-metal dichalcogenides (TMDs) have recently emerged as solid-state candidates for on-demand sources of single photons. Due to the role of strain in the site-selective creation of TMD emitters, their…

Being atomically thin and amenable to external controls, two-dimensional (2D) materials offer a new paradigm for the realization of patterned qubit fabrication and operation at room temperature for quantum information sciences applications.…

Mesoscale and Nanoscale Physics · Physics 2022-03-02 Jeng-Yuan Tsai , Jinbo Pan , Hsin Lin , Arun Bansil , Qimin Yan

Two dimensional (2D) transition-metal dichalcogenide (TMD) based semiconductors have generated intense recent interest due to their novel optical and electronic properties, and potential for applications. In this work, we characterize the…

Monolayers (ML) of Group-6 transition-metal dichalcogenides (TMDs) are semiconducting two-dimensional materials with direct bandgap, showing promising applications in various fields of science and technology, such as nanoelectronics and…

Computational Physics · Physics 2020-06-24 Mohammad Bahmani , Mahdi Faghihnasiri , Michael Lorke , Agnieszka-Beata Kuc , Thomas Frauenheim

We calculate from first principles the electronic structure and optical properties of a number of transition metal dichalcogenide (TMD) bilayer heterostructures consisting of MoS2 layers sandwiched with WS2, MoSe2, MoTe2, BN, or graphene…

Mesoscale and Nanoscale Physics · Physics 2013-09-12 Hannu-Pekka Komsa , Arkady V. Krasheninnikov

Semiconductor quantum dots have emerged as promising candidates for implementation of quantum information processing since they allow for a quantum interface between stationary spin qubits and propagating single photons. In the meanwhile,…

Mesoscale and Nanoscale Physics · Physics 2014-11-04 Ajit Srivastava , Meinrad Sidler , Adrien V. Allain , Dominik S. Lembke , Andras Kis , Atac Imamoglu

Localized electronic states formed inside the band gap of a semiconductor due to crystal defects can be detrimental to the material's optoelectronic properties. Semiconductors with lower tendency to form defect induced deep gap states are…

The electrical performance of two dimensional transitional metal dichalcogenides (TMDs) is strongly influenced by the amount of structural defects inside. In this work, we provide an optical spectroscopic characterization approach to…

Understanding quasiparticle band structures of transition metal dichalcogenides (TMDs) is critical for technological advances of these materials for atomic layer electronics and photonics. Although theoretical calculations to date have…

Mesoscale and Nanoscale Physics · Physics 2015-10-30 Chendong Zhang , Yuxuan Chen , Amber Johnson , Ming-Yang Li , Lain-Jong Li , Patrick C. Mende , Randall M. Feenstra , Chih-Kang Shih

Using first-principles atomistic simulations, we study the response of atomically-thin layers of transition metal dichalcogenides (TMDs) - a new class of two-dimensional inorganic materials with unique electronic properties - to electron…

Semiconducting two-dimensional (2D) transition metal dichalcogenides (TMDs) are considered a key materials class to scale microelectronics to the ultimate atomic level. The robust quantum properties in TMDs also enable new device concepts…

Materials Science · Physics 2021-10-11 Joshua A. Robinson , Bruno Schuler

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

Quantum information science (QIS), encompassing technologies such as quantum computing, sensing, and communication, relies on the development and manipulation of quantum bits (qubits). Recently, two-dimensional (2D) materials --…

Applied Physics · Physics 2025-04-02 Cailian Yu , Zhihua Zheng , Menghao Gao , Zhenjiang Zhao , Xiaolong Yao

Studying the atomic structure of intrinsic defects in two-dimensional transition metal dichalcogenides is difficult since they damage quickly under the intense electron irradiation in transmission electron microscopy (TEM). However, this…

Monolayer transition metal dichalcogenides have recently attracted great interests because the quantum dots embedded in monolayer can serve as optically active single photon emitters. Here, we provide an interpretation of the recombination…

Layered two-dimensional (2D) materials exhibit unique properties, expanding opportunities in material design. We investigate MX$_2$ transition metal dichalcogenides (TMDCs) (M = Mo, W; X = S, Se, Te) in homo- and heterobilayers with…

Materials Science · Physics 2025-03-13 Yu-Hsiu Lin , William P. Comaskey , Jose L. Mendoza-Cortes

Recently, transition metal dichalcogenides (TMDCs) semiconductors have been utilized for investigating quantum phenomena because of their unique band structures and novel electronic properties. In a quantum dot (QD), electrons are confined…

Mesoscale and Nanoscale Physics · Physics 2020-03-04 Gang Luo , Zhuo-Zhi Zhang , Hai-Ou Li , Xiang-Xiang Song , Guang-Wei Deng , Gang Cao , Ming Xiao , Guo-Ping Guo
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