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Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection

Quan Liu Orcid Logo, Stefan Zeiske, Xueshi Jiang, Derese Desta, Sigurd Mertens, Sam Gielen, Rachith Shanivarasanthe, Hans-Gerd Boyen Orcid Logo, Ardalan Armin Orcid Logo, Koen Vandewal Orcid Logo

Nature Communications, Volume: 13, Issue: 1

Swansea University Authors: Stefan Zeiske, Ardalan Armin Orcid Logo

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DOI (Published version): 10.1038/s41467-022-32845-5

Abstract

Inherently narrowband near-infrared organic photodetectors are highly desired for many applications, including biological imaging and surveillance. However, they suffer from a low photon-to-charge conversion efficiencies and utilize spectral narrowing techniques which strongly rely on the used mater...

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Published in: Nature Communications
ISSN: 2041-1723
Published: Springer Science and Business Media LLC 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61227
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However, they suffer from a low photon-to-charge conversion efficiencies and utilize spectral narrowing techniques which strongly rely on the used material or on a nano-photonic device architecture. Here, we demonstrate a general and facile approach towards wavelength-selective near-infrared phtotodetection through intentionally n-doping 500&#x2013;600 nm-thick nonfullerene blends. We show that an electron-donating amine-interlayer can induce n-doping, resulting in a localized electric field near the anode and selective collection of photo-generated carriers in this region. As only weakly absorbed photons reach this region, the devices have a narrowband response at wavelengths close to the absorption onset of the blends with a high spectral rejection ratio. 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spelling 2022-09-29T15:21:07.9981899 v2 61227 2022-09-15 Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection 0c9c5b89df9ac882c3e09dd1a9f28fc5 Stefan Zeiske Stefan Zeiske true false 22b270622d739d81e131bec7a819e2fd 0000-0002-6129-5354 Ardalan Armin Ardalan Armin true false 2022-09-15 SPH Inherently narrowband near-infrared organic photodetectors are highly desired for many applications, including biological imaging and surveillance. However, they suffer from a low photon-to-charge conversion efficiencies and utilize spectral narrowing techniques which strongly rely on the used material or on a nano-photonic device architecture. Here, we demonstrate a general and facile approach towards wavelength-selective near-infrared phtotodetection through intentionally n-doping 500–600 nm-thick nonfullerene blends. We show that an electron-donating amine-interlayer can induce n-doping, resulting in a localized electric field near the anode and selective collection of photo-generated carriers in this region. As only weakly absorbed photons reach this region, the devices have a narrowband response at wavelengths close to the absorption onset of the blends with a high spectral rejection ratio. These spectrally selective photodetectors exhibit zero-bias external quantum efficiencies of ~20–30% at wavelengths of 900–1100 nm, with a full-width-at-half-maximum of ≤50 nm, as well as detectivities of >1012 Jones. Journal Article Nature Communications 13 1 Springer Science and Business Media LLC 2041-1723 3 9 2022 2022-09-03 10.1038/s41467-022-32845-5 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University We also thank the Research Foundation Flanders (FWO Vlaanderen) for continuing financial support (projects G0D0118N, G0B2718N, 1S50820N, 11D2618N), as well as the European Research Council (ERC, grant agreement 864625). Q.L. acknowledges financial support from the European Union’s Horizon 2020 research and innovation program under the Marie-Curie grant agreement no. 882794. S.G. acknowledges the FWO for his Ph.D fellowship. H.-G.B. and D.D. are very grateful to FWO for funding the HAXPES-lab instrument within the HERCULES program for large research infrastructure of the Flemish government. A.A. acknowledges support from Sêr Cymru II Program through the European Regional Development Fund and the Welsh European Funding Office. 2022-09-29T15:21:07.9981899 2022-09-15T09:06:09.9264601 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Quan Liu 0000-0001-9111-6639 1 Stefan Zeiske 2 Xueshi Jiang 3 Derese Desta 4 Sigurd Mertens 5 Sam Gielen 6 Rachith Shanivarasanthe 7 Hans-Gerd Boyen 0000-0003-0711-7597 8 Ardalan Armin 0000-0002-6129-5354 9 Koen Vandewal 0000-0001-5471-383x 10 61227__25262__972fa8206836432690aadfd343ca30fd.pdf 61227_VoR.pdf 2022-09-29T15:18:42.4001143 Output 2689048 application/pdf Version of Record true © The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License true eng http://creativecommons.org/licenses/by/4.0/
title Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection
spellingShingle Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection
Stefan Zeiske
Ardalan Armin
title_short Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection
title_full Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection
title_fullStr Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection
title_full_unstemmed Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection
title_sort Electron-donating amine-interlayer induced n-type doping of polymer:nonfullerene blends for efficient narrowband near-infrared photo-detection
author_id_str_mv 0c9c5b89df9ac882c3e09dd1a9f28fc5
22b270622d739d81e131bec7a819e2fd
author_id_fullname_str_mv 0c9c5b89df9ac882c3e09dd1a9f28fc5_***_Stefan Zeiske
22b270622d739d81e131bec7a819e2fd_***_Ardalan Armin
author Stefan Zeiske
Ardalan Armin
author2 Quan Liu
Stefan Zeiske
Xueshi Jiang
Derese Desta
Sigurd Mertens
Sam Gielen
Rachith Shanivarasanthe
Hans-Gerd Boyen
Ardalan Armin
Koen Vandewal
format Journal article
container_title Nature Communications
container_volume 13
container_issue 1
publishDate 2022
institution Swansea University
issn 2041-1723
doi_str_mv 10.1038/s41467-022-32845-5
publisher Springer Science and Business Media LLC
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description Inherently narrowband near-infrared organic photodetectors are highly desired for many applications, including biological imaging and surveillance. However, they suffer from a low photon-to-charge conversion efficiencies and utilize spectral narrowing techniques which strongly rely on the used material or on a nano-photonic device architecture. Here, we demonstrate a general and facile approach towards wavelength-selective near-infrared phtotodetection through intentionally n-doping 500–600 nm-thick nonfullerene blends. We show that an electron-donating amine-interlayer can induce n-doping, resulting in a localized electric field near the anode and selective collection of photo-generated carriers in this region. As only weakly absorbed photons reach this region, the devices have a narrowband response at wavelengths close to the absorption onset of the blends with a high spectral rejection ratio. These spectrally selective photodetectors exhibit zero-bias external quantum efficiencies of ~20–30% at wavelengths of 900–1100 nm, with a full-width-at-half-maximum of ≤50 nm, as well as detectivities of >1012 Jones.
published_date 2022-09-03T04:19:55Z
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score 11.037144

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