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Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides
Open accessAbstract
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.
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Cites
Electric Field Effect in Atomically Thin Carbon Films
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Zhang, Y., Dubonos, S. V., Grigorieva, I. V., & Firsov, A. A. (2004) · Science · doi:10.1126/science.1102896 · Cited by 66,834
Cited by
Schaibley, J. R., Yu, H., Clark, G., Rivera, P., Ross, J. S., Seyler, K. L., Yao, W., & Xu, X. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.55 · Cited by 2,652
Van der Waals integration before and beyond two-dimensional materials
Liu, Y., Huang, Y., & Duan, X. (2019) · Nature · doi:10.1038/s41586-019-1013-x · Cited by 1,541
Lv, R., Robinson, J. A., Schaak, R. E., Sun, D., Sun, Y., Mallouk, T. E., & Terrones, M. (2015) · Accounts of Chemical Research · doi:10.1021/ar5002846 · Cited by 1,380
Polaritons in layered two-dimensional materials
Low, T., Chaves, A., Caldwell, J. D., Kumar, A., Fang, N. X., Avouris, P., Heinz, T. F., Guinea, F., Martin-Moreno, L., & Koppens, F. (2017) · Nature Materials · doi:10.1038/nmat4792 · Cited by 1,317
Duan, X., Wang, C., Pan, A., Yu, R., & Duan, X. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00507h · Cited by 1,161
Metadata
- Authors
- 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.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2014-04-14
- Volume
- 111
- Issue
- 17
- Pages
- 6198-6202
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2140677129
- Cited by
- 1,142
- References
- 1
- FWCI
- 53.01
- Type
- journal article
- Language
- en
- Open access
- green
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- 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. https://doi.org/10.1073/pnas.1405435111
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