The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Transient Absorption Microscopy of Monolayer and Bulk WSe2
Abstract
We present an experimental investigation on the exciton dynamics of monolayer and bulk WSe2 samples, both of which are studied by femtosecond transient absorption microscopy. Under the excitation of a 405 nm pump pulse, the differential reflection signal of a probe pulse (tuned to the A-exciton resonance) reaches a peak rapidly that indicates an ultrafast formation process of excitons. By resolving the differential reflection signal in both time and space, we directly determine the exciton lifetimes of 18±1 and 160±10 ps and the exciton diffusion coefficients of 15±5 and 9±3 cm2/s in the monolayer and bulk samples, respectively. From these values, we deduce other parameters characterizing the exciton dynamics such as the diffusion length, the mobility, the mean free path, and the mean free length. These fundamental parameters are useful for understanding the excitons in monolayer and bulk WSe2 and are important for applications in optoelectronics, photonics, and electronics.
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Cites
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., & Strano, M. S. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.193 · Cited by 16,374
Graphene–MoS2 hybrid structures for multifunctional photoresponsive memory devices
Roy, K., Padmanabhan, M., Goswami, S., Sai, T. P., Ramalingam, G., Raghavan, S., & Ghosh, A. (2013) · Nature Nanotechnology · doi:10.1038/nnano.2013.206 · Cited by 1,436
MoSe 2 and WSe 2 Nanofilms with Vertically Aligned Molecular Layers on Curved and Rough Surfaces
Wang, H., Kong, D., Johanes, P., Cha, J. J., Zheng, G., Yan, K., Liu, N., & Cui, Y. (2013) · Nano Letters · doi:10.1021/nl401944f · Cited by 693
Cited by
Epitaxial growth of a monolayer WSe 2 -MoS 2 lateral p-n junction with an atomically sharp interface
Li, M.-Y., Shi, Y., Cheng, C.-C., Lu, L.-S., Lin, Y.-C., Tang, H.-L., Tsai, M.-L., Chu, C.-W., Wei, K.-H., He, J.-H., et al. (2015) · Science · doi:10.1126/science.aab4097 · Cited by 1,203
Observation of Rapid Exciton–Exciton Annihilation in Monolayer Molybdenum Disulfide
Sun, D., Rao, Y., Reider, G. A., Chen, G., You, Y., Brézin, L., Harutyunyan, A. R., & Heinz, T. F. (2014) · Nano Letters · doi:10.1021/nl5021975 · Cited by 579
Li, C., Cao, Q., Wang, F., Xiao, Y., Li, Y., Delaunay, J.-J., & Zhu, H. (2018) · Chemical Society Reviews · doi:10.1039/c8cs00067k · Cited by 494
Du, J., Wang, Q., Jiang, G., Xu, C., Zhao, C., Xiang, Y., Chen, Y., Wen, S., & Zhang, H. (2014) · Scientific Reports · doi:10.1038/srep06346 · Cited by 465
Excitonic resonances in thin films of WSe2: from monolayer to bulk material
Arora, A., Koperski, M., Nogajewski, K., Marcus, J., Faugeras, C., & Potemski, M. (2015) · Nanoscale · doi:10.1039/c5nr01536g · Cited by 359
Metadata
- Authors
- Cui, Q., Ceballos, F., Kumar, N., & Zhao, H.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-02-24
- Volume
- 8
- Issue
- 3
- Pages
- 2970-2976
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2329090064
- Cited by
- 268
- References
- 3
- FWCI
- 9.98
- Type
- journal article
- Language
- en
- Open access
- closed
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