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Remarkable Isomer Effect on the Performance of Fully Non-Fused Non-Fullerene Acceptors in Near-Infrared Organic Photodetectors
dc.contributor.author | Hu, Xiantao | |
dc.contributor.author | Qiao, Zhuoran | |
dc.contributor.author | Nodari, Davide | |
dc.contributor.author | He, Qiao | |
dc.contributor.author | Asatryan, Jesika | |
dc.contributor.author | Rimmele, Martina | |
dc.contributor.author | Chen, Zhili | |
dc.contributor.author | Martin, Jaime | |
dc.contributor.author | Gasparini, Nicola | |
dc.contributor.author | Heeney, Martin | |
dc.date.accessioned | 2024-07-15T15:40:37Z | |
dc.date.available | 2024-07-15T15:40:37Z | |
dc.date.issued | 2024-02 | |
dc.identifier.citation | Hu, X., Qiao, Z., Nodari, D., He, Q., Asatryan, J., Rimmele, M., Chen, Z., Martín, J., Gasparini, N., & Heeney, M. (2024). Remarkable Isomer Effect on the Performance of Fully Non-Fused Non-Fullerene Acceptors in Near-Infrared Organic Photodetectors. Advanced Optical Materials, 12(6). https://doi.org/10.1002/ADOM.202302210 | es_ES |
dc.identifier.issn | 2195-1071 | |
dc.identifier.uri | http://hdl.handle.net/2183/38023 | |
dc.description.abstract | [Abstract]: Two fully non-fused small-molecule acceptors BTIC-1 and BTIC-2 are reportedfor application in near-infrared organic photodetectors (NIR OPDs). Bothacceptors contain the same conjugated backbone but differing sidechainregiochemistry, affording significant differences in their optical properties. Thehead-to-head arrangement of BTIC-2 results in a reduction of optical band gapof 0.17 eV compared to BTIC-1, which contains a head-to-tail arrangement,with absorption spanning the visible and near-IR regions up to 900 nm. Thesedifferences are rationalized on the basis of non-covalent intramolecularinteractions facilitating a more co-planar conformation for BTIC-2. OPDsbased on PM6:BTIC-2 deliver a low dark current density of 2.4 × 10−7 A cm−2 ,leading to a superior specific detectivity of 1.7 × 1011 Jones at 828 nm at -2 V.The optimized device exhibits an ultrafast photo response of 2.6 μs and a high-3 dB cut-off frequency of 130 kHz. This work demonstrates that fullynon-fused small-molecule acceptors offer competitive device performance forNIR OPDs compared to fused-ring electron acceptors, but with reducedsynthetic complexity. Furthermore, the study presents an efficient strategy toenhance device performance by varying conformational locks. | es_ES |
dc.description.sponsorship | X.H. and Z.Q. contributed equally to this work. The authors would liketo thank the Engineering and Physics Science Research Council (EP-SRC) (EP/V048686/1 and EP/T028513/1), the Royal Society and WolfsonFoundation, and the King Abdullah University of Science and Technology(KAUST) Office of Sponsored Research (OSR-2019-CRG8-4095) for finan-cial support. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Wiley | es_ES |
dc.relation.uri | https://doi.org/10.1002/ADOM.202302210 | es_ES |
dc.rights | CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | Acceptor | es_ES |
dc.subject | fully non-fused | es_ES |
dc.subject | intramolecular conformational interaction | es_ES |
dc.subject | nearinfrared | es_ES |
dc.subject | organic photodetectors | es_ES |
dc.subject | small molecule | es_ES |
dc.title | Remarkable Isomer Effect on the Performance of Fully Non-Fused Non-Fullerene Acceptors in Near-Infrared Organic Photodetectors | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
UDC.journalTitle | Advanced Optical Materials | es_ES |
UDC.volume | 12 | es_ES |
UDC.issue | 6 | es_ES |
dc.identifier.doi | https://doi.org/10.1002/ADOM.202302210 |
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