Substrate-Dependent Exciton Diffusion and Annihilation in Chemically Treated MoS2 and WS2

Atomically thin semiconductors such as monolayer MoS2 and WS2 exhibit nonlinear exciton–exciton annihilation at notably low excitation densities (below ~10 excitons/μm2 in exfoliated MoS2). In this work, we show that the density threshold at which annihilation occurs can be tuned by changing the und...

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Veröffentlicht in:	Journal of physical chemistry. C 2020-05, Vol.124 (22)
Hauptverfasser:	Goodman, A. J., Lien, D.-H., Ahn, G. H., Spiegel, L. L., Amani, M., Willard, A. P., Javey, A., Tisdale, W. A.
Format:	Artikel
Sprache:	eng ; jpn
Schlagworte:	diffusion excitons INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY lasers quantum mechanics transport properties
Online-Zugang:	Volltext
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