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dc.contributor.authorGasparini, Nicola
dc.contributor.authorGregori, Alberto
dc.contributor.authorSalvador, Michael
dc.contributor.authorBiele, Markus
dc.contributor.authorWadsworth, Andrew
dc.contributor.authorTedde, Sandro
dc.contributor.authorBaran, Derya
dc.contributor.authorMcCulloch, Iain
dc.contributor.authorBrabec, Christoph J.
dc.date.accessioned2018-08-28T07:46:54Z
dc.date.available2018-08-28T07:46:54Z
dc.date.issued2018-06-11
dc.identifier.citationGasparini N, Gregori A, Salvador M, Biele M, Wadsworth A, et al. (2018) Visible and Near-Infrared Imaging with Nonfullerene-Based Photodetectors. Advanced Materials Technologies 3: 1800104. Available: http://dx.doi.org/10.1002/admt.201800104.
dc.identifier.issn2365-709X
dc.identifier.doi10.1002/admt.201800104
dc.identifier.urihttp://hdl.handle.net/10754/628268
dc.description.abstractThe solution-processed organic photodetectors underpin an emerging technology with inherent implications in the biological sensors and imaging displays. Conventional organic photodiodes, the core element of an organic photodetector, rely mainly on fullerene-based acceptors, which in combination with high and middle bandgap donors, limit the spectral photosensitivity to the visible range. Even in the case of low bandgap polymers the oscillator strength and thus the extinction coefficient are usually limited in the NIR due to the nature of molecular orbital hybridization. Instead, it is showed that pairing prototypical poly(3-hexylthiophene) (P3HT) with rhodanine-benzothiadiazole-coupled indacenodithiophene (IDTBR), a nonfullerene electron acceptor absorbing beyond 750 nm, as the photoactive material of a simple photodiode results in a highly efficient organic photodetector with a record responsivity of 0.42 A W−1 and external quantum efficiency (EQE) of 69% in the NIR (755 nm). Nonfullerene-based photodiodes are processed on amorphous silicon active matrix backplanes to realize large area flat panel photodetector imagers able to detect objects under visible and NIR light conditions with an exceptional combination of responsivity, dynamic response and image crosstalk.
dc.description.sponsorshipThe authors gratefully acknowledge the support of the Cluster of Excellence “Engineering of Advanced Materials” at the University of Erlangen-Nuremberg, which was funded by the German Research Foundation (DFG) within the framework of its “Excellence Initiative,” Synthetic Carbon Allotropes (SFB953) and Solar Technologies go Hybrid (SolTech). M.S. acknowledges primary support from a fellowship by the Portuguese Fundação para a Ciência e a Tecnologia (SFRH/BPD/71816/2010). A.G. acknowledges financial support from EU Seventh Framework Program (FP7/2007-2013) under Grant Agreement No. 607585 (OSNIRO), and I.M. acknowledges EC FP7 SC2 (610115) and EPSRC Project EP/M005143/1.
dc.publisherWiley
dc.rightsArchived with thanks to Advanced Materials Technologies
dc.subjectimager
dc.subjectlarge area devices
dc.subjectnear-infrared detection
dc.subjectnonfullerene acceptors
dc.subjectorganic photodetectors
dc.titleVisible and Near-Infrared Imaging with Nonfullerene-Based Photodetectors
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAdvanced Materials Technologies
dc.eprint.versionPost-print
dc.contributor.institutionInstitute of Materials for Electronics and Energy Technology (I-MEET); Friedrich-Alexander-University Erlangen-Nuremberg; Martensstraße 7 91058 Erlangen Germany
dc.contributor.institutionSiemens Healthineers, Technology Center; Guenther-Scharowsky-Str. 1 91058 Erlangen Germany
dc.contributor.institutionDepartment of Chemistry and Centre for Plastic Electronics; Imperial College London; London SW7 2AZ UK
dc.contributor.institutionBavarian Center for Applied Energy Research (ZAE Bayern); Haberstrasse 2a 91058 Erlangen Germany
kaust.personGasparini, Nicola
kaust.personSalvador, Michael
kaust.personBaran, Derya
kaust.personMcCulloch, Iain
refterms.dateFOA2018-08-30T08:38:38Z
dc.date.published-online2018-06-11
dc.date.published-print2018-07


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