Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김경곤 | * |
dc.date.accessioned | 2018-04-25T08:13:18Z | - |
dc.date.available | 2018-04-25T08:13:18Z | - |
dc.date.issued | 2018 | * |
dc.identifier.issn | 1022-1336 | * |
dc.identifier.issn | 1521-3927 | * |
dc.identifier.other | OAK-22214 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/242449 | - |
dc.description.abstract | The performance of organic photovoltaics (OPVs) based on the small-molecule organic semiconductor p-DTS(FBTTh2)(2) is greatly improved by the addition of a conjugated block copolymer composed of difluoroquinoxaline and thienopyrrolodione blocks (D130). The power conversion efficiency (PCE) of the p-DTS(FBTTh2)(2)-based OPV is improved from 5.08% to 6.75% by the addition of 5 wt% D130 to the photoactive layer, which is composed of p-DTS(FBTTh2)(2) and a fullerene derivative. Current-voltage and grazing incidence wide-angle X-ray scattering analyses revealed that the addition of D130 significantly reduces the trap density of the device and changes the packing orientation of p-DTS(FBTTh2)(2) from mostly edge-on to partially face-on. These changes greatly improve the charge carrier mobility of the OPV, indicating that D130 is highly compatible with p-DTS(FBTTh2)(2). Furthermore, the addition of D130 improve the photostability of the OPV by reducing the burn-in loss under a light soaking intensity of 1 sun. The D130-based OPV maintained 34% of its initial PCE after a light soaking test for 858 h. In contrast, the PCE of the OPV without D130 reduced to 14% of its initial efficiency in the same time period. | * |
dc.language | English | * |
dc.publisher | WILEY-V C H VERLAG GMBH | * |
dc.subject | organic solar cells | * |
dc.subject | organic solar cell stability | * |
dc.subject | small molecule organic solar cells | * |
dc.subject | ternary organic solar cells | * |
dc.title | Reducing Trap-Assisted Recombination in Small Organic Molecule-Based Photovoltaics by the Addition of a Conjugated Block Copolymer | * |
dc.type | Article | * |
dc.relation.issue | 5 | * |
dc.relation.volume | 39 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | MACROMOLECULAR RAPID COMMUNICATIONS | * |
dc.identifier.doi | 10.1002/marc.201700630 | * |
dc.identifier.wosid | WOS:000426647000007 | * |
dc.identifier.scopusid | 2-s2.0-85043280869 | * |
dc.author.google | Cho, Kyuwan | * |
dc.author.google | Kim, Jinseck | * |
dc.author.google | Yoon, So Yeon | * |
dc.author.google | Ryu, Ka Yeon | * |
dc.author.google | Jang, Song-Rim | * |
dc.author.google | Lim, Bogyu | * |
dc.author.google | Kim, Kyungkon | * |
dc.contributor.scopusid | 김경곤(7409321823) | * |
dc.date.modifydate | 20240220113038 | * |