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DC Field | Value | Language |
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dc.citation.endPage | 6450 | - |
dc.citation.number | 20 | - |
dc.citation.startPage | 6444 | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 130 | - |
dc.contributor.author | Yang, Changduk | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Cho, Shinuk | - |
dc.contributor.author | Lee, Jae Kwan | - |
dc.contributor.author | Heeger, Alan J. | - |
dc.contributor.author | Wudl, Fred | - |
dc.date.accessioned | 2023-12-22T08:40:52Z | - |
dc.date.available | 2023-12-22T08:40:52Z | - |
dc.date.created | 2014-09-25 | - |
dc.date.issued | 2008-05 | - |
dc.description.abstract | The synthesis of two well-solubilized [60]methanofullerene derivatives (p-EHO-PCBM and p-EHO-PCBA) is presented for usage in organic solar cells and in field-effect transistors. The para position of the PCBM's phenyl ring was substituted with a branched alkoxy side chain, which contributes to higher solubility, facilitating synthesis, purification, and processing. We find a small change of the open-circuit voltage (V(oc)) as a slight improvement in performance upon application in P3HT/[60]methanofullerene bulk-heterojunction-photovoltaic cells, when compared to PCBM, because of the electron donation of the alkoxy group. In the case of the devices with a TiO(x) layer, the best power conversion efficiencies (PCE, eta(e)) is observed in a layered structure of P3HT/p-EHO-PCBA/TiO(x) (eta(e) = 2.6%), which slightly exceeds that of P3HT/PCBM/TiO(x) (eta(e) = 2.3%) under conditions reported here. This can be attributed, in part, to the carboxylic acid group in p-EHO-PCBA that leads to an effective interface interaction between the active layer and TiOx phase. In addition, n-channel organic field-effect transistor (OFET) devices were fabricated with thin films of p-EHO-PCBM and p-EHO-PCBA, respectively cast from solution on SiO(2)/Si substrates. The values of field-effect mobility (mu) for p-EHO-PCBM and p-EHO-PCBA are 1 x 10(-2) and 1.6 x 10(-3) cm(2)/V.s, respectively. The results in this paper demonstrate the effects of a carboxylic acid group and an electron-donating substituent in [60]methanofullerenes as n-type materials with respect to organic solar cells and OFET applications. | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.130, no.20, pp.6444 - 6450 | - |
dc.identifier.doi | 10.1021/ja710621j | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.scopusid | 2-s2.0-43949105143 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/6465 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=43949105143 | - |
dc.identifier.wosid | 000255854100036 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Functionalized methanofullerenes used as n-type materials in bulk-heterojunction polymer solar cells and in field-effect transistors | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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