The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Exciton Dynamics in Suspended Monolayer and Few-Layer MoS2 2D Crystals
Open accessAbstract
Femtosecond transient absorption spectroscopy and microscopy were employed to study exciton dynamics in suspended and Si₃N₄ substrate-supported monolayer and few-layer MoS₂ 2D crystals. Exciton dynamics for the monolayer and few-layer structures were found to be remarkably different from those of thick crystals when probed at energies near that of the lowest energy direct exciton (A exciton). The intraband relaxation rate was enhanced by more than 40 fold in the monolayer in comparison to that observed in the thick crystals, which we attributed to defect assisted scattering. Faster electron-hole recombination was found in monolayer and few-layer structures due to quantum confinement effects that lead to an indirect-direct band gap crossover. Nonradiative rather than radiative relaxation pathways dominate the dynamics in the monolayer and few-layer MoS₂. Fast trapping of excitons by surface trap states was observed in monolayer and few-layer structures, pointing to the importance of controlling surface properties in atomically thin crystals such as MoS₂ along with controlling their dimensions.
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Cites
Two-dimensional atomic crystals
Novoselov, K. S., Jiang, D., Schedin, F., Booth, T. J., Khotkevich, V. V., Morozov, S. V., & Geim, A. K. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0502848102 · Cited by 11,788
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Spin and pseudospins in layered transition metal dichalcogenides
Xu, X., Yao, W., Xiao, D., & Heinz, T. F. (2014) · Nature Physics · doi:10.1038/nphys2942 · Cited by 2,855
Atomically thin p–n junctions with van der Waals heterointerfaces
Lee, C.-H., Lee, G.-H., van der Zande, A. M., Chen, W., Li, Y., Han, M., Cui, X., Arefe, G., Nuckolls, C., Heinz, T. F., et al. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.150 · Cited by 2,303
Ultrafast charge transfer in atomically thin MoS2/WS2 heterostructures
Hong, X., Kim, J., Shi, S.-F., Zhang, Y., Jin, C., Sun, Y., Tongay, S., Wu, J., Zhang, Y., & Wang, F. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.167 · Cited by 2,301
Tunable Photoluminescence of Monolayer MoS2 via Chemical Doping
Mouri, S., Miyauchi, Y., & Matsuda, K. (2013) · Nano Letters · doi:10.1021/nl403036h · Cited by 1,517
Beyond Graphene: Progress in Novel Two-Dimensional Materials and van der Waals Solids
Das, S., Robinson, J. A., Dubey, M., Terrones, H., & Terrones, M. (2015) · Annual Review of Materials Research · doi:10.1146/annurev-matsci-070214-021034 · Cited by 640
Metadata
- Authors
- Shi, H., Yan, R., Bertolazzi, S., Brivio, J., Gao, B., Kis, A., Jena, D., Xing, H. G., & Huang, L.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-01-07
- Volume
- 7
- Issue
- 2
- Pages
- 1072-1080
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2137246288
- Cited by
- 839
- References
- 1
- FWCI
- 18.24
- Type
- journal article
- Language
- en
- Open access
- green
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