March 15, 2010

Emerging Photoluminescence in Monolayer MoS2

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Abstract

Novel physical phenomena can emerge in low-dimensional nanomaterials. Bulk MoS(2), a prototypical metal dichalcogenide, is an indirect bandgap semiconductor with negligible photoluminescence. When the MoS(2) crystal is thinned to monolayer, however, a strong photoluminescence emerges, indicating an indirect to direct bandgap transition in this d-electron system. This observation shows that quantum confinement in layered d-electron materials like MoS(2) provides new opportunities for engineering the electronic structure of matter at the nanoscale.

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Cite This Study

Splendiani et al. (Mon,) studied this question.

synapsesocial.com/papers/69d8ecc017a1cc0598d18db5 https://doi.org/https://doi.org/10.1021/nl903868w

Discussion

Journals

Nano Letters

Institutions

University of California, Berkeley

University of California, Davis

Lawrence Berkeley National Laboratory

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