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Out-of-plane orient...
Out-of-plane orientation of luminescent excitons in two-dimensional indium selenide
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- Brotons-Gisbert, Mauro (författare)
- Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland.
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- Proux, Raphael (författare)
- Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland.
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- Picard, Raphael (författare)
- Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland.
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- Andres-Penares, Daniel (författare)
- Univ Valencia, ICMUV, Inst Ciencia Mat, POB 2208546071, Valencia, Spain.
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- Branny, Artur (författare)
- KTH,Tillämpad fysik,Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland.
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- Molina-Sanchez, Alejandro (författare)
- Univ Valencia, ICMUV, Inst Ciencia Mat, POB 2208546071, Valencia, Spain.;Int Iberian Nanotechnol Lab INL, Av Mestre Jose Veiga, P-4715330 Braga, Portugal.
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- Sanchez-Royo, Juan F. (författare)
- Univ Valencia, ICMUV, Inst Ciencia Mat, POB 2208546071, Valencia, Spain.
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- Gerardot, Brian D. (författare)
- Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland.
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Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland Univ Valencia, ICMUV, Inst Ciencia Mat, POB 2208546071, Valencia, Spain. (creator_code:org_t)
- 2019-09-02
- 2019
- Engelska.
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Ingår i: Nature Communications. - : Springer Nature. - 2041-1723. ; 10
- Relaterad länk:
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https://doi.org/10.1...
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https://www.nature.c...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Van der Waals materials offer a wide range of atomic layers with unique properties that can be easily combined to engineer novel electronic and photonic devices. A missing ingredient of the van der Waals platform is a two-dimensional crystal with naturally occurring out-of-plane luminescent dipole orientation. Here we measure the far-field photoluminescence intensity distribution of bulk InSe and two-dimensional InSe, WSe2 and MoSe2. We demonstrate, with the support of ab-initio calculations, that layered InSe flakes sustain luminescent excitons with an intrinsic out-of-plane orientation, in contrast with the in-plane orientation of dipoles we find in two-dimensional WSe2 and MoSe2 at room-temperature. These results, combined with the high tunability of the optical response and outstanding transport properties, position layered InSe as a promising semiconductor for novel optoelectronic devices, in particular for hybrid integrated photonic chips which exploit the out-of-plane dipole orientation.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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- art (ämneskategori)
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