DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Taesu | ko |
dc.contributor.author | Choi, Joonhyeong | ko |
dc.contributor.author | Kim, Hyeong Jun | ko |
dc.contributor.author | Lee, Wonho | ko |
dc.contributor.author | Kim, Bumjoon J. | ko |
dc.date.accessioned | 2017-10-23T01:56:33Z | - |
dc.date.available | 2017-10-23T01:56:33Z | - |
dc.date.created | 2017-10-10 | - |
dc.date.created | 2017-10-10 | - |
dc.date.issued | 2017-09 | - |
dc.identifier.citation | MACROMOLECULES, v.50, no.17, pp.6861 - 6871 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/10203/226423 | - |
dc.description.abstract | We compared the thermal and morphological stability of all-polymer solar cells.(all-PSCs) and fullerene-based PSCs (fullerene-PSCs) having the same polymer donor (PBDTTTPD), which provided comparable peak power conversion efficiencies (PCEs) of >6%. We observed a remarkable contrast in thermal stability dependent upon the acceptor composition in the active layer, with the performance of the fullerene-PSCs completely deteriorating after annealing for 5 h at 150 degrees C, whereas that of the all-PSCs remained stable even after annealing for 50 h at 150 degrees C. Pronounced phase separation was observed in the active layer of the fullerene-PSCs at two different length scales. In stark contrast, almost no morphological changes in the all-PSCs were observed, likely due to the low diffusion kinetics of the polymer acceptors. To develop a comprehensive understanding of the role of polymer acceptor on the thermal stability of devices, the morphology of ternary blend active layers composed of PBDTTTPD:polymer acceptor:fullerene acceptor with different fullerene contents was examined while annealing at 150 degrees C. The ternary blends showed two extreme trends of all-PSC- and fullerene-PSC-like behavior in thermal stability depending on the PCBM content. When included in the active layer as <30 wt % of the acceptor mixture, fullerene was well dispersed in the amorphous portion of the donor/acceptor polymer blend under thermal stress and led to thermally stable devices with a higher PCE (7.12%) than both all-PSCs without fullerene (6.67%) and polymer fullerene active layers without a polymeric acceptor (6.12%). | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | POWER CONVERSION EFFICIENCY | - |
dc.subject | OPEN-CIRCUIT VOLTAGE | - |
dc.subject | BULK-HETEROJUNCTION | - |
dc.subject | ORGANIC PHOTOVOLTAICS | - |
dc.subject | SIDE-CHAIN | - |
dc.subject | TEMPERATURE-DEPENDENCE | - |
dc.subject | MOLECULAR-WEIGHT | - |
dc.subject | MIXING BEHAVIOR | - |
dc.subject | ADDITIVE-FREE | - |
dc.subject | ACCEPTOR | - |
dc.title | Comparative Study of Thermal Stability, Morphology, and Performance of All-Polymer, Fullerene-Polymer, and Ternary Blend Solar Cells Based on the Same Polymer Donor | - |
dc.type | Article | - |
dc.identifier.wosid | 000410867400052 | - |
dc.identifier.scopusid | 2-s2.0-85029374405 | - |
dc.type.rims | ART | - |
dc.citation.volume | 50 | - |
dc.citation.issue | 17 | - |
dc.citation.beginningpage | 6861 | - |
dc.citation.endingpage | 6871 | - |
dc.citation.publicationname | MACROMOLECULES | - |
dc.identifier.doi | 10.1021/acs.macromol.7b00834 | - |
dc.contributor.localauthor | Kim, Bumjoon J. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | OPEN-CIRCUIT VOLTAGE | - |
dc.subject.keywordPlus | BULK-HETEROJUNCTION | - |
dc.subject.keywordPlus | ORGANIC PHOTOVOLTAICS | - |
dc.subject.keywordPlus | SIDE-CHAIN | - |
dc.subject.keywordPlus | TEMPERATURE-DEPENDENCE | - |
dc.subject.keywordPlus | MOLECULAR-WEIGHT | - |
dc.subject.keywordPlus | MIXING BEHAVIOR | - |
dc.subject.keywordPlus | ADDITIVE-FREE | - |
dc.subject.keywordPlus | ACCEPTOR | - |
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