Reconfiguring crystal and electronic structures of MoS2 by substitutional doping

Joonki Suh (), Teck Leong Tan, Weijie Zhao, Joonsuk Park, Lin Der-Yuh, Tae-Eon Park, Jonghwan Kim, Chenhao Jin, Nihit Saigal, Sandip Ghosh, Zicong Marvin Wong, Yabin Chen, Feng Wang, Wladyslaw Walukiewicz, Goki Eda and Junqiao Wu ()
Additional contact information
Joonki Suh: University of California
Teck Leong Tan: Institute of High Performance Computing, Agency for Science, Technology and Research
Weijie Zhao: National University of Singapore
Joonsuk Park: Stanford University
Lin Der-Yuh: National Changhua University of Education
Tae-Eon Park: Center for Spintronics, Korea Institute of Science and Technology
Jonghwan Kim: University of California
Chenhao Jin: University of California
Nihit Saigal: Tata Institute of Fundamental Research
Sandip Ghosh: Tata Institute of Fundamental Research
Zicong Marvin Wong: Institute of High Performance Computing, Agency for Science, Technology and Research
Yabin Chen: University of California
Feng Wang: University of California
Wladyslaw Walukiewicz: University of California
Goki Eda: National University of Singapore
Junqiao Wu: University of California

Nature Communications, 2018, vol. 9, issue 1, 1-7

Abstract: Abstract Doping of traditional semiconductors has enabled technological applications in modern electronics by tailoring their chemical, optical and electronic properties. However, substitutional doping in two-dimensional semiconductors is at a comparatively early stage, and the resultant effects are less explored. In this work, we report unusual effects of degenerate doping with Nb on structural, electronic and optical characteristics of MoS2 crystals. The doping readily induces a structural transformation from naturally occurring 2H stacking to 3R stacking. Electronically, a strong interaction of the Nb impurity states with the host valence bands drastically and nonlinearly modifies the electronic band structure with the valence band maximum of multilayer MoS2 at the Γ point pushed upward by hybridization with the Nb states. When thinned down to monolayers, in stark contrast, such significant nonlinear effect vanishes, instead resulting in strong and broadband photoluminescence via the formation of exciton complexes tightly bound to neutral acceptors.

Date: 2018
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-017-02631-9 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-017-02631-9

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-017-02631-9

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().