DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Chul-Hee | ko |
dc.contributor.author | Kim, Hyeong Jun | ko |
dc.contributor.author | Kang, Hyunbum | ko |
dc.contributor.author | Shin, Tae Joo | ko |
dc.contributor.author | Kim, Bumjoon J. | ko |
dc.date.accessioned | 2013-03-12T23:33:25Z | - |
dc.date.available | 2013-03-12T23:33:25Z | - |
dc.date.created | 2012-08-21 | - |
dc.date.created | 2012-08-21 | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY, v.22, no.28, pp.14236 - 14245 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | http://hdl.handle.net/10203/103885 | - |
dc.description.abstract | The photovoltaic, charge transport, light absorption and morphology properties of a series of poly[3-(4-n-alkyl) phenylthiophene] (PAPT):acceptor (phenyl-C-61-butyric acid methyl ester (PCBM) or indene-C-60 bisadduct (ICBA)) blend films are reported as a function of alkyl side-chain length. Regioregular poly[3-(4-n-butyl) phenylthiophene] (PBPT), poly[3-(4-n-hexyl) phenylthiophene] (PHPT), poly[3-(4-n-octyl) phenylthiophene] (POPT), and poly[3-(4-n-decyl) phenylthiophene] (PDPT) were successfully synthesized by a modified Grignard metathesis (GRIM) polymerization method. The effects of the alkyl side-chain length on the optical, electrochemical and structural properties of the polymers were carefully investigated to establish a relationship between the molecular structure and device function. Bulk heterojunction solar cells made of PAPTs blended with either PCBM or ICBA showed a strong photovoltaic property dependence on the alkyl side-chain length. Among all PAPTs used in this study, the best performance was observed in PHPT-based devices. This is the first report of the use of PHPT in polymer solar cells. In addition, PAPT devices blended with ICBA generally showed higher open-circuit voltages (V-oc) and power conversion efficiencies than PCBM-based devices. For example, a PHPT: ICBA photovoltaic device showed a V-oc of 0.79 V and a power conversion efficiency of 3.7%, which is the highest performance reported thus far using PAPT polymers. While the optical properties of PAPT/electron acceptor films exhibit the strongest effect on the short-circuit current of the devices, a balance between the optical, electrical and morphological properties of blended films caused by the alkyl side-chain length determines the overall photovoltaic performance of these devices. Therefore, our work provides a fundamental understanding of the molecular structure-device function relationship, especially with respect to changes in the alkyl side-chain length in conjugated polymers. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | OPEN-CIRCUIT VOLTAGE | - |
dc.subject | CHARGE-TRANSPORT | - |
dc.subject | OPTOELECTRONIC PROPERTIES | - |
dc.subject | ORGANIC PHOTOVOLTAICS | - |
dc.subject | BULK HETEROJUNCTIONS | - |
dc.subject | CONJUGATED POLYMER | - |
dc.subject | FACILE SYNTHESIS | - |
dc.subject | FILM MORPHOLOGY | - |
dc.subject | PERFORMANCE | - |
dc.subject | EFFICIENT | - |
dc.title | The effect of side-chain length on regioregular poly[3-(4-n-alkyl) phenylthiophene]/PCBM and ICBA polymer solar cells | - |
dc.type | Article | - |
dc.identifier.wosid | 000305796300052 | - |
dc.identifier.scopusid | 2-s2.0-84863712038 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 28 | - |
dc.citation.beginningpage | 14236 | - |
dc.citation.endingpage | 14245 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.identifier.doi | 10.1039/c2jm31371e | - |
dc.contributor.localauthor | Kim, Bumjoon J. | - |
dc.contributor.nonIdAuthor | Cho, Chul-Hee | - |
dc.contributor.nonIdAuthor | Shin, Tae Joo | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | OPEN-CIRCUIT VOLTAGE | - |
dc.subject.keywordPlus | CHARGE-TRANSPORT | - |
dc.subject.keywordPlus | OPTOELECTRONIC PROPERTIES | - |
dc.subject.keywordPlus | ORGANIC PHOTOVOLTAICS | - |
dc.subject.keywordPlus | BULK HETEROJUNCTIONS | - |
dc.subject.keywordPlus | CONJUGATED POLYMER | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | FILM MORPHOLOGY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | EFFICIENT | - |
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