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Engineering the Luminescence and Generation of Individual Defect Emitters in Atomically Thin MoS2

Klein, Julian (author)
Sigl, Lukas (author)
Gyger, Samuel (author)
KTH,Kvant- och biofotonik
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Barthelmi, Katja (author)
Florian, Matthias (author)
Rey, Sergio (author)
Taniguchi, Takashi (author)
Watanabe, Kenji (author)
Jahnke, Frank (author)
Kastl, Christoph (author)
Zwiller, Val (author)
KTH,Kvant- och biofotonik
Jöns, Klaus D. (author)
KTH,Kvant- och biofotonik
Mueller, Kai (author)
Wurstbauer, Ursula (author)
Finley, Jonathan J. (author)
Holleitner, Alexander W. (author)
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 (creator_code:org_t)
2021-01-21
2021
English.
In: ACS Photonics. - : AMER CHEMICAL SOC. - 2330-4022. ; 8:2, s. 669-677
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We demonstrate the on-demand creation and positioning of photon emitters in atomically thin MoS2 with very narrow ensemble broadening and negligible background luminescence. Focused helium-ion beam irradiation creates 100s to 1000s of such mono-typical emitters at specific positions in the MoS2 monolayers. Individually measured photon emitters show anti-bunching behavior with a g(2)(0) similar to 0.23 and 0.27. From a statistical analysis, we extract the creation yield of the He-ion induced photon emitters in MoS2 as a function of the exposed area, as well as the total yield of single emitters as a function of the number of He ions when single spots are irradiated by He ions. We reach probabilities as high as 18% for the generation of individual and spectrally clean photon emitters per irradiated single site. Our results firmly establish 2D materials as a platform for photon emitters with unprecedented control of position as well as photophysical properties owing to the all-interfacial nature.

Subject headings

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Keyword

2D materials
molybdenum disulfide
quantum emitter
He-ion irradiation
defect generation
vdW heterostructure

Publication and Content Type

ref (subject category)
art (subject category)

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