Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김경곤 | * |
dc.date.accessioned | 2017-11-01T05:02:03Z | - |
dc.date.available | 2017-11-01T05:02:03Z | - |
dc.date.issued | 2017 | * |
dc.identifier.issn | 2073-4360 | * |
dc.identifier.other | OAK-21330 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/239095 | - |
dc.description.abstract | A morphologically-stable polymer/fullerene heterojunction has been prepared by minimizing the intermixing between polymer and fullerene via sequential deposition (SqD) of a polymer and a fullerene solution. A low crystalline conjugated polymer of PCPDTBT (poly[2,6-(4,4- bis-(2-ethylhexyl)-4H-cyclopenta [2,1-b;3,4-b0]dithiophene)-alt-4,7(2,1,3-benzothiadiazole)]) has been utilized for the polymer layer and PC71BM (phenyl-C71-butyric-acid-methyl ester) for the fullerene layer, respectively. Firstly, a nanostructured PCPDTBT bottom layer was developed by utilizing various additives to increase the surface area of the polymer film. The PC71BM solution was prepared by dissolving it in the 1,2-dichloroethane (DCE), exhibiting a lower vapor pressure and slower diffusion into the polymer layer. The deposition of the PC71BM solution on the nanostructured PCPDTBT layer forms an inter-digitated bulk heterojunction (ID-BHJ) with minimized intermixing. The organic photovoltaic (OPV) device utilizing the ID-BHJ photoactive layer exhibits a highly reproducible solar cell performance. In spite of restricted intermixing between the PC71BM and the PCPDTBT, the efficiency of ID-BHJ OPVs (3.36%) is comparable to that of OPVs (3.87%) prepared by the conventional method (deposition of a blended solution of polymer:fullerene). The thermal stability of the ID-BHJ is superior to the bulk heterojunction (BHJ) prepared by the conventional method. The ID-BHJ OPV maintains 70% of its initial efficiency after thermal stress application for twelve days at 80 °C, whereas the conventional BHJ OPV maintains only 40% of its initial efficiency. © 2017 by the authors. | * |
dc.language | English | * |
dc.publisher | MDPI AG | * |
dc.subject | Bulk heterojunction | * |
dc.subject | Organic solar cell | * |
dc.subject | Sequential deposition | * |
dc.subject | Stability | * |
dc.title | Thermally stable bulk heterojunction prepared by sequential deposition of nanostructured polymer and fullerene | * |
dc.type | Article | * |
dc.relation.issue | 9 | * |
dc.relation.volume | 9 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | Polymers | * |
dc.identifier.doi | 10.3390/polym9090456 | * |
dc.identifier.wosid | WOS:000411524400063 | * |
dc.identifier.scopusid | 2-s2.0-85029781977 | * |
dc.author.google | Hwang H. | * |
dc.author.google | Lee H. | * |
dc.author.google | Shafian S. | * |
dc.author.google | Lee W. | * |
dc.author.google | Seok J. | * |
dc.author.google | Ryu K.Y. | * |
dc.author.google | Ryu D.Y. | * |
dc.author.google | Kim K. | * |
dc.contributor.scopusid | 김경곤(7409321823) | * |
dc.date.modifydate | 20240220113038 | * |