DOI: 10.1063/1.4900945. Exciton dynamics in WSe2 bilayers

10.1063/1.4900945

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We investigate exciton dynamics in WSe2 bilayers in time-resolved photoluminescence (PL) spectroscopy. Fast PL emission times are recorded for both the direct exciton with τD ≲ 3 ps and the indirect optical transition with τI ≈ 25 ps. For temperatures between 4 to 150 K τI remains constant. Following polarized laser excitation, we observe for the direct exciton transition at the K point of the Brillouin zone efficient optical orientation and alignment during the short emission time τD. The evolution of the direct exciton polarization and intensity as a function of excitation laser energy is monitored in PL excitation experiments.

Bibliography

Wang, G., Marie, X., Bouet, L., Vidal, M., Balocchi, A., Amand, T., Lagarde, D., & Urbaszek, B. (2014). Exciton dynamics in WSe2 bilayers. Applied Physics Letters, 105(18).

Authors 8

G. Wang (first)
X. Marie (additional)
L. Bouet (additional)
M. Vidal (additional)
A. Balocchi (additional)
T. Amand (additional)
D. Lagarde (additional)
B. Urbaszek (additional)

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Dates

Type	When
Created	10 years, 10 months ago (Nov. 4, 2014, 8:31 p.m.)
Deposited	2 years, 2 months ago (June 24, 2023, 10:28 p.m.)
Indexed	4 weeks, 1 day ago (Aug. 6, 2025, 9:29 a.m.)
Issued	10 years, 10 months ago (Nov. 3, 2014)
Published	10 years, 10 months ago (Nov. 3, 2014)
Published Online	10 years, 10 months ago (Nov. 4, 2014)
Published Print	10 years, 10 months ago (Nov. 3, 2014)

Funders 1

European Research Council 10.13039/501100000781
Region: Europe
gov (National government)
Labels1
1. ERC
Awards1
1. 306719

BibTeX

@article{Wang_2014, title={Exciton dynamics in WSe2 bilayers}, volume={105}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4900945}, DOI={10.1063/1.4900945}, number={18}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Wang, G. and Marie, X. and Bouet, L. and Vidal, M. and Balocchi, A. and Amand, T. and Lagarde, D. and Urbaszek, B.}, year={2014}, month=nov }

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