二维层状 PtS2 中极强的层间相互作用
Extraordinarily Strong Interlayer Interaction in 2D Layered PtS2.
机构信息
Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.
The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China.
出版信息
Adv Mater. 2016 Mar 23;28(12):2399-407. doi: 10.1002/adma.201504572. Epub 2016 Feb 2.
Platinum disulfide (PtS2 ), a new member of the group-10 transition-metal dichalcogenides, is studied experimentally and theoretically. The indirect bandgap of PtS2 can be drastically tuned from 1.6 eV (monolayer) to 0.25 eV (bulk counterpart), and the interlayer mechanical coupling is almost isotropic. It can be explained by strongly interlayer interaction from the pz orbital hybridization of S atoms.
二硫化铂（PtS2）是 10 族过渡金属二硫属化物中的新成员，目前已经过实验和理论研究。PtS2 的间接带隙可从 1.6eV（单层）剧烈调谐至 0.25eV（体相对应值），层间机械耦合几乎各向同性。这可以归因于 S 原子 pz 轨道杂化的强烈层间相互作用。
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