Results 41 to 50 of about 10,215 (258)

Boosting quantum yields in two-dimensional semiconductors via proximal metal plates

Nature Communications, 2021
The short exciton lifetime and strong exciton-exciton interaction in transition metal dichalcogenides limit the efficiency of exciton emission. Here, the authors show that exciton-exciton interaction in monolayer WS2 can be screened using proximal metal ...
Yongjun Lee, Johnathas D’arf Severo Forte, Andrey Chaves, Anshuman Kumar, Trang Thu Tran, Youngbum Kim, Shrawan Roy, Takashi Taniguchi, Kenji Watanabe, Alexey Chernikov, Joon I. Jang, Tony Low, Jeongyong Kim   +12 more
doaj   +1 more source

Non-Additive Optical Response in Transition Metal Dichalcogenides Heterostructures

Nanomaterials, 2022
Van der Waals (vdW) heterostructures pave the way to achieve the desired material properties for a variety of applications. In this way, new scientific and industrial challenges and fundamental questions arise.
Marwa A. El-Sayed, Andrey P. Tselin, Georgy A. Ermolaev, Mikhail K. Tatmyshevskiy, Aleksandr S. Slavich, Dmitry I. Yakubovsky, Sergey M. Novikov, Andrey A. Vyshnevyy, Aleksey V. Arsenin, Valentyn S. Volkov   +9 more
doaj   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

Advanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou, James FitzPatrick, Li Meng, Kateryna Shevchuk, Ahmad Najafi, Yury Gogotsi   +5 more
wiley   +1 more source

Heterostructures of transition metal dichalcogenides [PDF]

Physical Review B, 2015
The structural, electronic, optical, and photocatalytic properties of out-of-plane and in-plane heterostructures of transition metal dichalcogenides are investigated by (hybrid) first principles calculations. The out-of-plane heterostructures are found to be indirect band gap semiconductors with type-II band alignment.
Amin, Bin, Singh, Nirpendra, Schwingenschlögl, Udo   +2 more
openaire   +2 more sources

Topological superconductivity in monolayer transition metal dichalcogenides

Nature Communications, 2017
Conditions to realize topological superconductivity have long been known, but the materialization remains rare. Here, Hsuet al. report a strategy towards possible topological superconductivity in monolayer hole-doped transition metal dichalcogenide by ...
Yi-Ting Hsu, Abolhassan Vaezi, Mark H. Fischer, Eun-Ah Kim   +3 more
doaj   +1 more source

Robust growth of two-dimensional metal dichalcogenides and their alloys by active chalcogen monomer supply

Nature Communications, 2022
The large-area growth of 2D transition metal dichalcogenides (TMDs) requires a precise control of metal and chalcogen precursors. Here, the authors implement a strategy using active chalcogen monomer supply to grow monolayer TMDs and their alloys ...
Yonggang Zuo, Can Liu, Liping Ding, Ruixi Qiao, Jinpeng Tian, Chang Liu, Qinghe Wang, Guodong Xue, Yilong You, Quanlin Guo, Jinhuan Wang, Ying Fu, Kehai Liu, Xu Zhou, Hao Hong, Muhong Wu, Xiaobo Lu, Rong Yang, Guangyu Zhang, Dapeng Yu, Enge Wang, Xuedong Bai, Feng Ding, Kaihui Liu   +23 more
doaj   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

Bridging the gap between atomically thin semiconductors and metal leads

Nature Communications, 2022
Barrier-free metal-semiconductor interfaces are crucial to improve the performance of 2D electronic devices. Here, the authors report a strategy to induce local bonding distortion in 2D transition metal dichalcogenides via soft oxygen plasma treatments ...
Xiangbin Cai, Zefei Wu, Xu Han, Yong Chen, Shuigang Xu, Jiangxiazi Lin, Tianyi Han, Pingge He, Xuemeng Feng, Liheng An, Run Shi, Jingwei Wang, Zhehan Ying, Yuan Cai, Mengyuan Hua, Junwei Liu, Ding Pan, Chun Cheng, Ning Wang   +18 more
doaj   +1 more source

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

Advanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda, Md Rashed Nizam, Walker J. Tuff, Collin C. Wyant, Maksym Zhukovskyi, Matthew R. Rosenberger, Botond Sánta, Edward C. Kinzel, Robert A. Hughes, Svetlana Neretina   +9 more
wiley   +1 more source

Phonon-mediated exciton capture in Mo-based transition metal dichalcogenides

Physical Review Research, 2020
Localized excitons play a vital role in the optical response of monolayers of transition metal dichalcogenides and can be exploited as single photon sources for quantum information technology.
F. Lengers, T. Kuhn, D. E. Reiter
doaj   +1 more source