DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Ji-Hoon | ko |
dc.contributor.author | Shin, Seung Ah | ko |
dc.contributor.author | Park, Jong Baek | ko |
dc.contributor.author | Song, Chang Eun | ko |
dc.contributor.author | Shin, Won Suk | ko |
dc.contributor.author | Yang, Hoichang | ko |
dc.contributor.author | Li, Yongfang | ko |
dc.contributor.author | Hwang, Do-Hoon | ko |
dc.date.accessioned | 2015-11-20T10:15:46Z | - |
dc.date.available | 2015-11-20T10:15:46Z | - |
dc.date.created | 2014-08-18 | - |
dc.date.created | 2014-08-18 | - |
dc.date.issued | 2014-03 | - |
dc.identifier.citation | MACROMOLECULES, v.47, no.5, pp.1613 - 1622 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/10203/201265 | - |
dc.description.abstract | We designed and synthesized two low-band-gap conjugated copolymers with alternating difluorinated benzoselenadiazole (DFDTBSe) and ethylhexyloxy (EH)- or octyldodecyloxy (OD)-substituted benzo[1,2-b:4,5-b']-dithiophene (BDT) building blocks. PEHBDT-DFDTBSe and PODBDT-DFDTBSe have optical band gap energies of 1.66 and 1.69 eV, respectively, and HOMO energy levels of -5.44 and -5.43 eV, respectively. The different alkyloxy side chains in the polymers affect the molecular packing and ordering in active-layer films blended with [6,6]-phenyl-C-71 butyric acid methyl ester (PC71BM). The PEHBDT-DFDTBSe:PC71BM film comprises predominantly "face-on" crystal structures with short pi-pi stacking distances (3.69 angstrom) while PODBDT-DFDTBSe:PC71BM has mostly "edge-on" structures according to two-dimensional grazing-incidence X-ray diffraction analysis. Bulk heterojunction solar cells were fabricated with an inverted structure of ITO/ethoxylated polyethylenimine/polymer:PC71BM/MoO3/Ag. The device fabricated using the PEHBDT-DFDTBSe:PC71BM active layer shows a maximum power conversion efficiency (PCE) of up to 5.74%, which is the highest value reported for OPVs containing benzoselenadiazole and BDT-derivative polymers. A tandem solar cell was also fabricated using PEHBDT-DFDTBSe:PC71BM and poly(3-hexylthiophene):indene-C-60-bisadduct as the top and bottom cell components, respectively; its maximum PCE was 7.15%. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | POWER CONVERSION EFFICIENCY | - |
dc.subject | HETEROJUNCTION SOLAR-CELLS | - |
dc.subject | SEMICONDUCTING POLYMER | - |
dc.subject | CONJUGATED POLYMER | - |
dc.subject | DIKETOPYRROLOPYRROLE | - |
dc.subject | PERFORMANCE | - |
dc.subject | BENZOTHIADIAZOLE | - |
dc.subject | BENZODITHIOPHENE | - |
dc.subject | COPOLYMERS | - |
dc.subject | DESIGN | - |
dc.title | Fluorinated Benzoselenadiazole-Based Low-Band-Gap Polymers for High Efficiency Inverted Single and Tandem Organic Photovoltaic Cells | - |
dc.type | Article | - |
dc.identifier.wosid | 000338806900012 | - |
dc.identifier.scopusid | 2-s2.0-84900634903 | - |
dc.type.rims | ART | - |
dc.citation.volume | 47 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 1613 | - |
dc.citation.endingpage | 1622 | - |
dc.citation.publicationname | MACROMOLECULES | - |
dc.identifier.doi | 10.1021/ma4026493 | - |
dc.contributor.nonIdAuthor | Kim, Ji-Hoon | - |
dc.contributor.nonIdAuthor | Shin, Seung Ah | - |
dc.contributor.nonIdAuthor | Park, Jong Baek | - |
dc.contributor.nonIdAuthor | Shin, Won Suk | - |
dc.contributor.nonIdAuthor | Yang, Hoichang | - |
dc.contributor.nonIdAuthor | Li, Yongfang | - |
dc.contributor.nonIdAuthor | Hwang, Do-Hoon | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | HETEROJUNCTION SOLAR-CELLS | - |
dc.subject.keywordPlus | SEMICONDUCTING POLYMER | - |
dc.subject.keywordPlus | CONJUGATED POLYMER | - |
dc.subject.keywordPlus | DIKETOPYRROLOPYRROLE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | BENZOTHIADIAZOLE | - |
dc.subject.keywordPlus | BENZODITHIOPHENE | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordPlus | DESIGN | - |
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