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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 240 | - |
dc.citation.startPage | 232 | - |
dc.citation.title | SOLAR ENERGY MATERIALS AND SOLAR CELLS | - |
dc.citation.volume | 124 | - |
dc.contributor.author | Son, Seon Kyoung | - |
dc.contributor.author | Lee, Hyo-Sang | - |
dc.contributor.author | Ha, Jae Seung | - |
dc.contributor.author | Kim, Kyung Hwan | - |
dc.contributor.author | Son, Hae Jung | - |
dc.contributor.author | Ko, Min Jae | - |
dc.contributor.author | Kim, Honggon | - |
dc.contributor.author | Lee, Doh-Kwon | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Lee, Wonmok | - |
dc.contributor.author | Park, Sungnam | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.contributor.author | Kim, BongSoo | - |
dc.date.accessioned | 2023-12-22T02:39:59Z | - |
dc.date.available | 2023-12-22T02:39:59Z | - |
dc.date.created | 2018-09-10 | - |
dc.date.issued | 2014-05 | - |
dc.description.abstract | In this study, we demonstrated the effective morphological control of polymer:fullerene blends using three separate solvent systems: chloroform (CF), CF:1,8-diiodooctane (DIO), and CF:o-dichlorobenzene (ODCB). The polymer:fullerene blends are composed of two diketopyrrolopyrrole (DPP)-based polymers of P(DPP-alt-QT) and P(DPP-alt-DTBSe) and a fullerene derivative of [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM), i.e., P(DPP-alt-QT):PC71BM or P(DPP-alt-DTBSe):PCTIBM. The CF:ODCB binary solvent exhibited the best photovoltaic performance among the three solvent systems for both polymer-based devices, although the CF:DIO also exhibited an improved performance compared to the CF system. By examining film morphology of the blend films, we found that the CF:ODCB enabled the most optimal nanoscale phase separation and the morphological features were strongly affected by the solubility of each material in the high boiling-point (BP) solvent. Specifically, the polymers have limited but slightly higher solubility in ODCB than in DIO, while the PC71BM molecules have a high solubility in both DIO and ODCB. Therefore, this work highlights that the optimally asymmetric solubility of each photoactive component in the high BP solvent is a critical factor to form the nanoscale, bicontinuous domains in the blend films and thereby to determine the performance of photovoltaic devices. | - |
dc.identifier.bibliographicCitation | SOLAR ENERGY MATERIALS AND SOLAR CELLS, v.124, pp.232 - 240 | - |
dc.identifier.doi | 10.1016/j.solmat.2014.02.011 | - |
dc.identifier.issn | 0927-0248 | - |
dc.identifier.scopusid | 2-s2.0-84897821422 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/24847 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0927024814000907?via%3Dihub | - |
dc.identifier.wosid | 000335111000030 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Effect of asymmetric solubility of diketopyrrolopyrrole-based polymers and PC71BMs in a binary solvent system on the performance of bulk heterojunction solar cells | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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