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Wide-gap non-fullerene acceptor enabling high-performance organic photovoltaic cells for indoor applications
Chinese Acad Sci, Peoples R China; Univ Chinese Acad Sci, Peoples R China.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Chinese Acad Sci, Peoples R China.
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2019 (engelsk)Inngår i: NATURE ENERGY, ISSN 2058-7546, Vol. 4, nr 9, s. 768-775Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Organic photovoltaic cells are potential candidates to drive low power consumption off-grid electronics for indoor applications. However, their power conversion efficiency is still limited by relatively large losses in the open-circuit voltage and a non-optimal absorption spectrum for indoor illumination. Here, we carefully designed a non-fullerene acceptor named IO-4CI and blend it with a polymer donor named PBDB-TF to obtain a photoactive layer whose absorption spectrum matches that of indoor light sources. The photovoltaic characterizations reveal a low energy loss below 0.60 eV. As a result, the organic photovoltaic cell (1 cm(2)) shows a power conversion efficiency of 26.1% with an open-circuit voltage of 1.10 V under a light-emitting diode illumination of 1,000 lux (2,700 K). We also fabricated a large-area cell (4 cm(2)) through the blade-coating method. Our cell shows an excellent stability, maintaining its initial photovoltaic performance under continuous illumination of the indoor light source for 1,000 hours.

sted, utgiver, år, opplag, sider
NATURE PUBLISHING GROUP , 2019. Vol. 4, nr 9, s. 768-775
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Identifikatorer
URN: urn:nbn:se:liu:diva-161197DOI: 10.1038/s41560-019-0448-5ISI: 000486098400011OAI: oai:DiVA.org:liu-161197DiVA, id: diva2:1365681
Merknad

Funding Agencies|National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51673201, 91633301]; Beijing National 434 Laboratory for Molecular Sciences [BNLMS-CXXM-201903]; Chinese Academy of SciencesChinese Academy of Sciences [XDB12030200]; Swedish Research Council VRSwedish Research Council [2018-06048]; Swedish Energy Agency EnergimyndighetenSwedish Energy Agency [2016-010174]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009-00971]

Tilgjengelig fra: 2019-10-25 Laget: 2019-10-25 Sist oppdatert: 2019-10-25

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