2018年1月2日 · In this work, we demonstrate direct and controllable synthesis of ultra-thin 1T-TaS 2 and 2H-TaS 2 on a variety of substrates (sapphire, SiO 2 /Si, and graphene) via powder vapor deposition. The synthesis process leads to single crystal domains ranging from 20 to 200 nm thick and 1–10 µ m on a side.

1973年8月1日 · We report here on the preparation and properties of single crystals of a new polytype of TaS2 (designated as 4Hb) and also on the magnetic properties of 1T-TaS~ [9]. Each layer of TaS2 is 3 atoms thick, the top and bottom sheet …

2023年6月26日 · Interlayer coupling and stacking order play essential roles in shaping the exotic electronic properties of two-dimensional materials. Here, we employ restacked TaS 2 ─a novel transition metal dichalcogenide (TMD) with weak vdW bonding and twisted angles─to investigate the strain effects of interlayer modulation on the electronic properties.

2024年4月23日 · Our findings demonstrate the duality of insulating nature in 1T-TaS 2 crystals. By manipulating the translational degree of freedom in layered crystals, our discovery presents …

2019年12月4日 · For the 1T octahedral form of 1T-TaS2 two 'low'-temperature phase transitions have been identified by transport measurements, electron diffraction (Wilson et a1 1974) and x-ray techniques (Robbins and Marseglia 1980).

2024年12月18日 · 通过对温度变化、脉冲电压持续时间以及近红外光照对相变影响进行全面分析，揭示了多步电致相变中电流驱动和热效应驱动相变的共同作用机制，即随着电流增加，CDW相变机制从电流驱动逐渐转变为热驱动的过程。 该研究结果为统一解释 1T-TaS₂ 中电驱动电荷密度波相变机制的长期争议提供了新见解，更为基于光热耦合实现红外探测提供了崭新思路。 图1 1T-TaS2纳米片多步相变的阈值驱动行为....

2018年11月7日 · Scanning tunneling microscopy measurements reveal a 3 × 3 charge density wave (CDW) in the phase-switched monolayer at 4.5 K. The enhanced Tc is explained by the suppressed 3 × 3 CDW and a charge-transfer doping from the 1 T substrate. We further show that the monolayer 2 H -TaS 2 could be switched back to 1 T phase by applying a voltage pulse.

Large-Area Synthesis of Two-Dimensional Metallic TaS 2 and Ultrahigh Electrocatalytic Hydrogen Evolution Reaction. 杨金龙. 二维金属性TaS 2 的大面积可控制备和超高电催化析氢效率 [J]. 物理化学学报, 2018, 34 (5), 453-454. doi:...

2016年10月18日 · A Ta-TaS2 monolith catalyst with robust and metallic interface for superior hydrogen evolution. Nature Communications 2021 , 12 (1) https://doi.org/10.1038/s41467-021-26315-7

2017年7月4日 · 以MoS2为代表的2D过渡金属硫化物 (TMDCs)由于具有特殊的能带结构、半导体或超导性质以及优秀的机械性能等，在纳米电子器件和光电子学等诸多领域具有广阔的应用前景，引起了广大研究者们的兴趣，成为了近年来低维功能材料领域研究的热点。 近日，瑞士洛桑联邦理工学院 (EPFL)的Andras Kis (通讯作者)等人应邀在Nature Reviews Materials上发表了题为“2D transition metal dichalcogenides”的综述文章。 文章主要对近年来2D-TMDCs在结构、电子能带 …