Park, Jaewan Park, Sungmin Hong, Seongin
Published in
Physica Scripta
In this paper, we report thermally stable photosensing using MoS2 phototransistor with a poly(methyl methacrylate) (PMMA) coating. The increase in the OFF current of the PMMA-coated MoS2 phototransistor degraded to less than 87.72% of that of the pristine MoS2 phototransistor under harsh temperature conditions (250 °C). PMMA coating on the pristine...
Chen, Tong Zheng, Zhaoqiang Li, Kunle Li, Yalong Chen, Shanshan Yang, Yibin Tao, Lili Feng, Xing Zhao, Yu
Published in
Nanotechnology
Two-dimensional (2D) transition metal dichalcogenides (TMDs) have attracted considerable attention due to their outstanding optoelectronic properties and ease of integration, making them ideal candidates for high-performance photodetectors. However, the excessive width of the bandgap in some 2D TMDs presents a challenge for achieving infrared photo...
Cao, Wei Deb, Swarup Stern, Maayan Vizner Raab, Noam Urbakh, Michael Hod, Oded Kronik, Leeor Shalom, Moshe Ben
Published in
Advanced materials (Deerfield Beach, Fla.)
Van der Waals (vdW) polytypes of broken inversion and mirror symmetries were recently shown to exhibit switchable electric polarization even at the ultimate two-layer thin limit. Their out-of-plane polarization was found to accumulate in a ladder-like fashion with each successive layer, offering 2D building blocks for the bottom-up construction of ...
Loginov, A B Kuvatov, M M Ismagilov, R R Sapkov, I V Fedotov, P V Kleshch, V I Obraztsova, E D Obraztsov, A N
Published in
Nanotechnology
Unique properties possessed by transition metal dichalcogenides (TMDs) attract much attention in terms of investigation of their formation and dependence of their characteristics on the production process parameters. Here, we investigate the formation of TMD films during chemical vapor deposition (CVD) in a mixture of thermally activated gaseous H2...
Bonnet, Noémie Baaboura, Jassem Castioni, Florian Woo, Steffi Y Ho, Ching-Hwa Watanabe, Kenji Taniguchi, Takashi Tizei, Luiz H G Coenen, Toon
Published in
Nanotechnology
Nanoscale variations of optical properties in transition metal dichalcogenide (TMD) monolayers can be explored with cathodoluminescence (CL) and electron energy loss spectroscopy (EELS) using electron microscopes. To increase the CL emission intensity from TMD monolayers, the MoSe2 flakes are encapsulated in hexagonal boron nitride (hBN), creating ...
Adams, Lewis J Matthews, Peter D Morbec, Juliana M Balakrishnan, Nilanthy
Published in
Nanotechnology
Transition metal dichalcogenides have been extensively studied in recent years because of their fascinating optical, electrical, and catalytic properties. However, low-cost, scalable production remains a challenge. Aerosol-assisted chemical vapor deposition (AACVD) provides a new method for scalable thin film growth. In this study, we demonstrate t...
Chen, Sainan Zhang, Xilin Kang, Wenli Li, Xiaodong Yang, Zongxian
Published in
Physica Scripta
CO oxidation on Zn doped Platinum-based transition metal sulfides (Zn/PtX2, X = S, Se, Te) was systematically explored by density functional theory calculations. The geometric stability, electronic structure and catalytic properties of the three Zn/PtX2 catalysts were studied. CO oxidation on Zn/PtX2 along the Langmuir–Hinshelwood and Eley-Rideal m...
Chircă, Irina AlMutairi, AbdulAziz Achinuq, Barat Cai, Rongsheng Haigh, Sarah J Hofmann, Stephan
Published in
2D Materials
Facile mapping of 2D heterostructures and resolving anisotropic formation kinetics down to the monolayer level are critical to developing scalable interfacing solutions and unlocking their application potential in emerging nano-optoelectronics. We adapt a Kramers–Kronig constrained variational fitting algorithm for spectroscopic imaging ellipsometr...
Mehlich, Kai Ghorbani-Asl, Mahdi Sahm, Daniel Chagas, Thais Weber, Daniel Grover, Catherine Dombrowski, Daniela Krasheninnikov, Arkady V Busse, Carsten
Published in
2D Materials
We prepared two-dimensional concentric lateral heterostructures of the monolayer transition metal dichalcogenides MoS2 and TaS2 by reactive molecular beam epitaxy on chemically inert and weakly interacting Au(111). The heterostructures are in a size regime where quantum confinement can be expected. Despite large lattice mismatch a seamless intercon...
Wei, Hao Dubois, Simon Brunnett, Frederic Peiro, Julian Godel, Florian Carrétéro, Cécile Panciera, Federico Collin, Sophie Bouamrane, Fayçal Zatko, Victor
...
Van der Waals heterostructures are set as strong contenders for post‐CMOS quantum materials engineering. A major step for their systematic exploration and exploitation of technological component demonstrators resides in their eased large‐scale design. In this direction, the growth of artificial van der Waals 2D superlattices is presented here such ...
