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dc.contributor.authorKeshtov, M. L.en_US
dc.contributor.authorKuklin, S. A.en_US
dc.contributor.authorKhokhlov, A. R.en_US
dc.contributor.authorOsipov, S. N.en_US
dc.contributor.authorRadychev, N. A.en_US
dc.contributor.authorGodovskiy, D. Y.en_US
dc.contributor.authorKonstantinov, I. O.en_US
dc.contributor.authorChen, F. C.en_US
dc.contributor.authorKoukaras, E. N.en_US
dc.contributor.authorSharma, Ganesh D.en_US
dc.date.accessioned2018-08-21T05:54:07Z-
dc.date.available2018-08-21T05:54:07Z-
dc.date.issued2017-07-01en_US
dc.identifier.issn1566-1199en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.orgel.2017.04.015en_US
dc.identifier.urihttp://hdl.handle.net/11536/145593-
dc.description.abstractWe synthesized an ultra low bandgap terpolymer denoted as P containing fluorinated-fluorene attached thiadiazoloquinoxaline and benzothiadiazole acceptors and thiophene as donor in its backbone and investigated its optical and electrochemical properties. This terpolymer is used for as donor along with PC71BM as electron acceptor in solution processed polymer solar cells (PSCs). The P showed a shows strong absorption band from 650 nm to 1100 nm with an optical bandgap of 1.12 eV and highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of -5.25 eV and -3.87 eV, respectively. After the optimization of P to PC71BM weight ratio, the optimized weight ratio 1: 2 in chlorobenzene (CB) solution, the PSC showed overall power conversion efficiency of 4.10% (J(sc) of 10.96 mA/cm(2), V-oc of 0.68 V and FF of 0.55). After the solvent additive (3 v% DIO) followed by subsequent thermal annealing (SA-TA) the PCE has been increased up to 7.54% with Jsc of 16.12 mA/cm(2), Voc of 0.65 V and FF of 0.72. The increase in the PCE is related with the enhancement in the both Jsc and FF, attributed optimized nanoscale morphology of the active layer for both efficient exciton dissociation and charge transport towards the electrodes and balanced charge transport in the device, induced by the TSA treatment of the active layer. This is the highest PCE of PSCs with an energy loss about 0.47 eV with the low bandgap of 1.12 eV. (C) 2017 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectLow bandgap terpolymeren_US
dc.subjectSolvent additive and thermal annealingen_US
dc.subjectBulk heterojunction solar cellsen_US
dc.subjectPower conversion efficiencyen_US
dc.titlePolymer solar cells based low bandgap A1-D-A2-D terpolymer based on fluorinated thiadiazoloquinoxaline and benzothiadiazole acceptors with energy loss less than 0.5 eVen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.orgel.2017.04.015en_US
dc.identifier.journalORGANIC ELECTRONICSen_US
dc.citation.volume46en_US
dc.citation.spage192en_US
dc.citation.epage202en_US
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000402708700026en_US
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