DOI: 10.1073/pnas.1405435111. Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides

Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides

10.1073/pnas.1405435111

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

Significance A new class of heterostructures consisting of layered transition metal dichalcogenide components can be designed and built by van der Waals (vdW) stacking of individual monolayers into functional multilayer structures. Nonetheless, the optoelectronic properties of this new type of vdW heterostructure are unknown. Here, we investigate artificial semiconductor heterostructures built from single-layer WSe 2 and MoS 2 . We observe spatially direct absorption but spatially indirect emission in this heterostructure, with strong interlayer coupling of charge carriers. The coupling at the hetero-interface can be readily tuned by inserting hexagonal BN dielectric layers into the vdW gap. The generic nature of this interlayer coupling is expected to yield a new family of semiconductor heterostructures having tunable optoelectronic properties through customized composite layers.

Bibliography

Fang, H., Battaglia, C., Carraro, C., Nemsak, S., Ozdol, B., Kang, J. S., Bechtel, H. A., Desai, S. B., Kronast, F., Unal, A. A., Conti, G., Conlon, C., Palsson, G. K., Martin, M. C., Minor, A. M., Fadley, C. S., Yablonovitch, E., Maboudian, R., & Javey, A. (2014). Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides. Proceedings of the National Academy of Sciences, 111(17), 6198â6202.

Authors 19

Hui Fang (first)
Corsin Battaglia (additional)
Carlo Carraro (additional)
Slavomir Nemsak (additional)
Burak Ozdol (additional)
Jeong Seuk Kang (additional)
Hans A. Bechtel (additional)
Sujay B. Desai (additional)
Florian Kronast (additional)
Ahmet A. Unal (additional)
Giuseppina Conti (additional)
Catherine Conlon (additional)
Gunnar K. Palsson (additional)
Michael C. Martin (additional)
Andrew M. Minor (additional)
Charles S. Fadley (additional)
Eli Yablonovitch (additional)
Roya Maboudian (additional)
Ali Javey (additional)

References 34 Referenced 998

Dates

Type	When
Created	11 years, 4 months ago (April 14, 2014, 11:58 p.m.)
Deposited	3 years, 4 months ago (April 12, 2022, 10:49 p.m.)
Indexed	3 days, 7 hours ago (Aug. 30, 2025, 1 p.m.)
Issued	11 years, 4 months ago (April 14, 2014)
Published	11 years, 4 months ago (April 14, 2014)
Published Online	11 years, 4 months ago (April 14, 2014)
Published Print	11 years, 4 months ago (April 29, 2014)

Funders 0

None

BibTeX

@article{Fang_2014, title={Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides}, volume={111}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.1405435111}, DOI={10.1073/pnas.1405435111}, number={17}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Fang, Hui and Battaglia, Corsin and Carraro, Carlo and Nemsak, Slavomir and Ozdol, Burak and Kang, Jeong Seuk and Bechtel, Hans A. and Desai, Sujay B. and Kronast, Florian and Unal, Ahmet A. and Conti, Giuseppina and Conlon, Catherine and Palsson, Gunnar K. and Martin, Michael C. and Minor, Andrew M. and Fadley, Charles S. and Yablonovitch, Eli and Maboudian, Roya and Javey, Ali}, year={2014}, month=apr, pages={6198–6202} }

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