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Visualization of Band Shifting and Interlayer Coupling in WxMo1-xS2 Alloys using Near-Field Broadband Absorption Microscopy
Po-Wen Tang, Shiue-Yuan Shiau, He-Chun Chou +5
Beyond-diffraction-limit optical absorption spectroscopy provides profound information on the graded band structures of composition-spread and stacked two-dimensional materials, in…
Parallel Stitching of Two-Dimensional Materials
Xi Ling, Yuxuan Lin, Qiong Ma +16
Diverse parallel stitched two-dimensional heterostructures are synthesized, including metal-semiconductor (graphene-MoS2), semiconductor-semiconductor (WS2-MoS2), and insulator-sem…
Nucleation and Growth Mechanism of a Covalent Material: Magic Clusters and Chemical Reactions
Yi-Hsien Lee, Kuntal Chatterjee, Chung-Kai Fang +4
With scanning tunneling microscopy, we study the very early stage of Si deposition on a Pb monolayer covered Si(111) surface. We find a special type of Si magic clusters which are…
Synthesis of Large-Area MoS2 Atomic Layers with Chemical Vapor Deposition
Yi-Hsien Lee, Xin-Quan Zhang, Wenjing Zhang +8
Large-area MoS2 atomic layers are synthesized on SiO2 substrates by chemical vapor deposition using MoO3 and S powders as the reactants. Optical, microscopic and electrical measure…
Growth of Large-Area and Highly Crystalline MoS2 Thin Layers on Insulating Substrates
Keng-Ku Liu, Wenjing Zhang, Yi-Hsien Lee +9
The two-dimensional layer of molybdenum disulfide (MoS2) has recently attracted much interest due to its direct-gap property and potential applications in optoelectronics and energ…