DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park,, Hye-Yun | ko |
dc.contributor.author | Kim, Kyung-Kon | ko |
dc.contributor.author | Kim, Dong-Young | ko |
dc.contributor.author | Choi, Si-Kyung | ko |
dc.contributor.author | Jo, Seong-Mu | ko |
dc.contributor.author | Jang, Sung-Yeon | ko |
dc.date.accessioned | 2013-03-12T07:05:32Z | - |
dc.date.available | 2013-03-12T07:05:32Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2011 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY, v.21, no.12, pp.4457 - 4464 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | http://hdl.handle.net/10203/101607 | - |
dc.description.abstract | A facile and effective treatment method for controlling the morphology of bulk heterojunction (BHJ) structured polymer-based solar cells (PSCs) using a gas-assisted spray (g-spray) technique was demonstrated. High-efficiency BHJ-PSCs were fabricated using a g-spray method that can be adapted to large-scale high-throughput continuous production, and the bulk film morphology and internal nanomorphology of the active layers were well manipulated using a sprayed solvent overlayer (SSO) treatment. The efficient nanomorphology evolution, which is a prerequisite for obtaining high performance BHJ-PSCs, was confirmed by X-ray diffraction, UV-Vis, photoluminescence, and transmission electron microscopy analysis. The SSO treatment was a simple and rapid process that could be carried out at room temperature, unlike conventional external treatment (ET) methods such as solvent-or thermal-assisted treatment, which typically require a prolonged time (> 1 h) or relatively high temperature (> 110 degrees C). After SSO treatment, the PSC performance was enhanced remarkably. The power conversion efficiency (PCE) of the g-sprayed PSCs after SSO treatment was 2.99%, which is higher than that of a solvent vapor treated device (2.42%) and thermally annealed devices (2.61%). Further optimization of the nanomorphology was achieved by sequentially developing P3HT and PCBM. By combining thermal annealing with the SSO treatment, the P3HT/PCBM interfacial area could be enhanced; this enhancement was induced by the PCBM diffusion into the space among pre-assembled P3HT nanofibrils, which in turn promoted their bi-continuity. This means of sequential nanomorphology development further enhanced the PCE (3.35%), which was higher than the other reported values for PSCs using spray methods. Considering that the SSO treatment is a facile room temperature process that requires a short time, these results suggest that the g-spray method can be successfully applied to the continuous production of PSCs. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | ORGANIC PHOTOVOLTAICS | - |
dc.subject | EXCITON DIFFUSION | - |
dc.subject | SELF-ORGANIZATION | - |
dc.subject | THIN-FILMS | - |
dc.subject | PERFORMANCE | - |
dc.subject | BLENDS | - |
dc.subject | DEVICES | - |
dc.subject | POLY(3-HEXYLTHIOPHENE) | - |
dc.subject | DISSOCIATION | - |
dc.subject | EVOLUTION | - |
dc.title | Facile external treatment for efficient nanoscale morphology control of polymer solar cells using a gas-assisted spray method | - |
dc.type | Article | - |
dc.identifier.wosid | 000288220600066 | - |
dc.identifier.scopusid | 2-s2.0-79952614447 | - |
dc.type.rims | ART | - |
dc.citation.volume | 21 | - |
dc.citation.issue | 12 | - |
dc.citation.beginningpage | 4457 | - |
dc.citation.endingpage | 4464 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.identifier.doi | 10.1039/c0jm03899g | - |
dc.contributor.localauthor | Choi, Si-Kyung | - |
dc.contributor.nonIdAuthor | Kim, Kyung-Kon | - |
dc.contributor.nonIdAuthor | Kim, Dong-Young | - |
dc.contributor.nonIdAuthor | Jo, Seong-Mu | - |
dc.contributor.nonIdAuthor | Jang, Sung-Yeon | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ORGANIC PHOTOVOLTAICS | - |
dc.subject.keywordPlus | EXCITON DIFFUSION | - |
dc.subject.keywordPlus | SELF-ORGANIZATION | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | BLENDS | - |
dc.subject.keywordPlus | DEVICES | - |
dc.subject.keywordPlus | POLY(3-HEXYLTHIOPHENE) | - |
dc.subject.keywordPlus | DISSOCIATION | - |
dc.subject.keywordPlus | EVOLUTION | - |
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