Extraordinarily Strong Interlayer Interaction in 2D Layered PtS2

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 isotrop...

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Published inAdvanced materials (Weinheim) Vol. 28; no. 12; pp. 2399 - 2407
Main Authors Zhao, Yuda, Qiao, Jingsi, Yu, Peng, Hu, Zhixin, Lin, Ziyuan, Lau, Shu Ping, Liu, Zheng, Ji, Wei, Chai, Yang
Format Journal Article
LanguageEnglish
Published Germany Blackwell Publishing Ltd 23.03.2016
Subjects
interlayer interactions
low-frequency Raman
platinum disulfide
transition metal dichalcogenides
platinum disulfide
interlayer interactions
transition metal dichalcogenides
low-frequency Raman
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Summary: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.
Bibliography:istex:A0914573DF783C94EF537DDBB0924A3A87A5CD73
Research Grant Council of Hong Kong - No. PolyU 252001/14E
ark:/67375/WNG-DF2DWB41-W
Hong Kong Polytechnic University - No. G-UC72; No. H-ZG1N
Ministry of Science and Technology (MOST) of China - No. 2012CB932704
Nanyang Technological University - No. M4081137.070
National Natural Science Foundation of China - No. 61302045; No. 11274380; No. 91433103
ArticleID:ADMA201504572
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0935-9648
1521-4095
1521-4095
DOI:10.1002/adma.201504572