Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김경곤 | * |
dc.date.accessioned | 2016-08-27T04:08:45Z | - |
dc.date.available | 2016-08-27T04:08:45Z | - |
dc.date.issued | 2015 | * |
dc.identifier.issn | 1566-1199 | * |
dc.identifier.issn | 1878-5530 | * |
dc.identifier.other | OAK-15222 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/217367 | - |
dc.description.abstract | Both charge recombination and degradation in sequential solution processed polymer/fullerene bilayer organic photovoltaics (OPV) are effectively reduced by the insertion of a TiO2 inter-layer between the bilayer and Al electrode. The polymer/fullerene bilayer composed of a poly(3-hexylthiophene) (P3HT) bottom-layer and a [6,6] phenyl C61-butyric acid methyl ester (PCBM) top-layer shows significant change in morphology due to the substantial inter-penetration of P3HT and PCBM during the thermal annealing process. Consequently, the bilayer surface becomes P3HT rich resulting in significant charge recombination at the bilayer/Al interface of the bilayer OPV. The charge recombination rate of the bilayer OPV is reduced by one order of magnitude upon the insertion of a TiO2 nanoparticle inter-layer between the bilayer and the Al electrode after the thermal annealing process. In contrast, when the thermal annealing process is conducted after insertion of the inter-layer, the effect of the TiO2 inter-layer becomes insignificant. The VOC and efficiency of the bilayer OPV is greatly enhanced from 0.37 to 0.66 V and 1.2% to 3.7%, respectively by utilizing the properly constructed TiO2 inter-layer in the bilayer OPV. Additionally, insertion of the TiO2 inter-layer significantly improves the stability of the bilayer OPV. The bilayer OPV with a TiO2 inter-layer maintains 51% of its initial PCE after storage under dark ambient conditions for 700 h without encapsulation, whereas the bilayer OPV without a TiO2 inter-layer did not show any solar cell performance after 200 h under the same conditions. (C) 2015 Elsevier B.V. All rights reserved. | * |
dc.language | English | * |
dc.publisher | ELSEVIER SCIENCE BV | * |
dc.subject | Organic solar cell | * |
dc.subject | Bilayer solar cell | * |
dc.subject | TiO2 interlayer | * |
dc.subject | Charge recombination | * |
dc.title | Effective protection of sequential solution-processed polymer/fullerene bilayer solar cell against charge recombination and degradation | * |
dc.type | Article | * |
dc.relation.volume | 25 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 212 | * |
dc.relation.lastpage | 218 | * |
dc.relation.journaltitle | ORGANIC ELECTRONICS | * |
dc.identifier.doi | 10.1016/j.orgel.2015.06.039 | * |
dc.identifier.wosid | WOS:000358603600032 | * |
dc.identifier.scopusid | 2-s2.0-84934294891 | * |
dc.author.google | Xie, Lin | * |
dc.author.google | Yoon, Soyeon | * |
dc.author.google | Cho, Yun Ju | * |
dc.author.google | Kim, Kyungkon | * |
dc.contributor.scopusid | 김경곤(7409321823) | * |
dc.date.modifydate | 20240220113038 | * |