DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Ki-Hyun | ko |
dc.contributor.author | Kang, Hyunbum | ko |
dc.contributor.author | So Yeon Nam | ko |
dc.contributor.author | Jung, Jaewook | ko |
dc.contributor.author | Kim, Pan Seok | ko |
dc.contributor.author | Cho, Chul-Hee | ko |
dc.contributor.author | Lee, Changjin | ko |
dc.contributor.author | Yoon, Sung Cheol | ko |
dc.contributor.author | Kim, Bumjoon | ko |
dc.date.accessioned | 2013-03-11T22:34:36Z | - |
dc.date.available | 2013-03-11T22:34:36Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2011-11 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v.23, no.22, pp.5090 - 5095 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/10203/100508 | - |
dc.description.abstract | The ability to control the lowest unoccupied molecular orbital (LUMO) level of an electron-accepting material is a critical parameter for producing highly efficient polymer solar cells (PSCs). Soluble bis-adducts of C(60) have great potential for improving the V(OC) in PSCs because of their high LUMO level. In this work, we have developed a novel o-xylenyl. C(60) bis-adduct (OXCBA) via a [4 + 2] cycloaddition between C(60) and an irreversible diene intermediate from dibromo-o-xylene. OXCBA was successfully applied as the electron acceptor with poly(3-hexylthiophene) (P3HT) in a PSC, showing a high efficiency of 5.31% with V(OC) of 0.83 V. This composite showed a nearly 50% enhancement in efficiency compared to the P3HT:PCBM control device (3.68% with V(OC) of 0.59 V). Furthermore, tuning the molar ratio between C(60) and the a,alpha,alpha'-dibromo-o-xylene group from 1:1 to 1:3 in the reaction scheme enables facile control over the number of o-xylenyl solubilizing groups ultimately tethered to the fullerene, thus producing o-xylenyl C(60) mono-, bis-, and tris-adducts (OXCMA, OXCBA, and OXCTA) with different LUMO levels. As the number of solubilizing groups increased, V(OC) values of the P3HT-based BHJ solar cells increased from 0.63 V (OXCMA) to 0.83 V (OXCBA) to 0.98 V (OXCTA). This series of o-xylenyl C(60) multiadducts provides a model system for investigating the molecular structure-device function relationship, especially with respect to changes in the number of solubilizing groups on the electron acceptor. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | PHOTOVOLTAIC PROPERTIES | - |
dc.subject | CONJUGATED POLYMER | - |
dc.subject | BLENDS | - |
dc.subject | GENERATION | - |
dc.subject | BISADDUCTS | - |
dc.subject | TRANSPORT | - |
dc.title | Facile Synthesis of o-Xylenyl Fullerene Multiadducts for High Open Circuit Voltage and Efficient Polymer Solar Cells | - |
dc.type | Article | - |
dc.identifier.wosid | 000296893600028 | - |
dc.identifier.scopusid | 2-s2.0-81255185821 | - |
dc.type.rims | ART | - |
dc.citation.volume | 23 | - |
dc.citation.issue | 22 | - |
dc.citation.beginningpage | 5090 | - |
dc.citation.endingpage | 5095 | - |
dc.citation.publicationname | CHEMISTRY OF MATERIALS | - |
dc.contributor.localauthor | Kim, Bumjoon | - |
dc.contributor.nonIdAuthor | Kim, Ki-Hyun | - |
dc.contributor.nonIdAuthor | Kang, Hyunbum | - |
dc.contributor.nonIdAuthor | So Yeon Nam | - |
dc.contributor.nonIdAuthor | Jung, Jaewook | - |
dc.contributor.nonIdAuthor | Kim, Pan Seok | - |
dc.contributor.nonIdAuthor | Cho, Chul-Hee | - |
dc.contributor.nonIdAuthor | Lee, Changjin | - |
dc.contributor.nonIdAuthor | Yoon, Sung Cheol | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | electron acceptors | - |
dc.subject.keywordAuthor | bisadduct fullerene | - |
dc.subject.keywordAuthor | high open circuit voltage | - |
dc.subject.keywordAuthor | polymer solar cells | - |
dc.subject.keywordPlus | PHOTOVOLTAIC PROPERTIES | - |
dc.subject.keywordPlus | CONJUGATED POLYMER | - |
dc.subject.keywordPlus | BLENDS | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordPlus | BISADDUCTS | - |
dc.subject.keywordPlus | TRANSPORT | - |
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