Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures
dc.contributor.author | Binder, J | |
dc.contributor.author | Howarth, J | |
dc.contributor.author | Withers, F | |
dc.contributor.author | Molas, MR | |
dc.contributor.author | Taniguchi, T | |
dc.contributor.author | Watanabe, K | |
dc.contributor.author | Faugeras, C | |
dc.contributor.author | Wysmolek, A | |
dc.contributor.author | Danovich, M | |
dc.contributor.author | Fal ko, VI | |
dc.contributor.author | Geim, AK | |
dc.contributor.author | Novoselov, KS | |
dc.contributor.author | Potemski, M | |
dc.contributor.author | Kozikov, A | |
dc.date.accessioned | 2019-09-06T13:42:00Z | |
dc.date.issued | 2019-05-27 | |
dc.description.abstract | The intriguing physics of carrier-carrier interactions, which likewise affect the operation of light emitting devices, stimulate the research on semiconductor structures at high densities of excited carriers, a limit reachable at large pumping rates or in systems with long-lived electron-hole pairs. By electrically injecting carriers into WSe2/MoS2 type-II heterostructures which are indirect in real and k-space, we establish a large population of typical optically silent interlayer excitons. Here, we reveal their emission spectra and show that the emission energy is tunable by an applied electric field. When the population is further increased by suppressing the radiative recombination rate with the introduction of an hBN spacer between WSe2 and MoS2, Auger-type and exciton-exciton annihilation processes become important. These processes are traced by the observation of an up-converted emission demonstrating that excitons gaining energy in non-radiative Auger processes can be recovered and recombine radiatively. | en_GB |
dc.description.sponsorship | European Commission Future and Emerging Technology (FET) European Graphene Flagship | en_GB |
dc.description.sponsorship | European Regional Development Fund | en_GB |
dc.description.sponsorship | European Research Council (ERC) | en_GB |
dc.description.sponsorship | Royal Society | en_GB |
dc.description.sponsorship | Royal Academy of Engineering | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | US Army Research Office | en_GB |
dc.description.sponsorship | MEXT, Japan | en_GB |
dc.description.sponsorship | CREST, JST | en_GB |
dc.identifier.citation | Vol. 10, article 2335 | en_GB |
dc.identifier.doi | 10.1038/s41467-019-10323-9 | |
dc.identifier.grantnumber | 785219 | en_GB |
dc.identifier.grantnumber | Hetero2D | en_GB |
dc.identifier.grantnumber | EP/N010345/1 | en_GB |
dc.identifier.grantnumber | EP/S019367/1 | en_GB |
dc.identifier.grantnumber | EP/P026850/1 | en_GB |
dc.identifier.grantnumber | W911NF-16-1-0279 | en_GB |
dc.identifier.grantnumber | JPMJCR15F3 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/38564 | |
dc.language.iso | en | en_GB |
dc.publisher | Nature Research | en_GB |
dc.rights | © 2019, The Author(s). Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. | en_GB |
dc.title | Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2019-09-06T13:42:00Z | |
dc.description | This is the final version. Available on open access from Nature Research via the link in this record | en_GB |
dc.description | Data availability: The data supporting the findings of this work are available from the corresponding author upon reasonable request. | en_GB |
dc.identifier.eissn | 2041-1723 | |
dc.identifier.journal | Nature Communications | en_GB |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0 | en_GB |
dcterms.dateAccepted | 2019-04-29 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2019-05-27 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2019-09-06T13:33:21Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2019-09-06T13:42:04Z | |
refterms.panel | B | en_GB |
refterms.depositException | publishedGoldOA |
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Except where otherwise noted, this item's licence is described as © 2019, The Author(s). Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.