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DC Field | Value | Language |
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dc.citation.endPage | 15314 | - |
dc.citation.number | 46 | - |
dc.citation.startPage | 15309 | - |
dc.citation.title | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.citation.volume | 12 | - |
dc.contributor.author | Choi, Hyosung | - |
dc.contributor.author | Cho, Heesook | - |
dc.contributor.author | Song, Suhee | - |
dc.contributor.author | Suh, Hongsuk | - |
dc.contributor.author | Park, Soojin | - |
dc.contributor.author | Kim, Jin Young | - |
dc.date.accessioned | 2023-12-22T06:39:17Z | - |
dc.date.available | 2023-12-22T06:39:17Z | - |
dc.date.created | 2013-06-14 | - |
dc.date.issued | 2010-12 | - |
dc.description.abstract | We demonstrate the fabrication of a nanoporous titania (NP-TiO(2)) network structure by using a polystylene-block-poly(4-vinylpyridine) (PS-b-P4VP) diblock copolymer template and modifying the surface of NP-TiO(2) with ionic liquids (ILs), bmim-BF(4) and benmim-Cl. The effect of the molecular weight of PS-b-P4VP on the morphology of the NP-TiO(2) and IL-modified NP-TiO(2) are characterized by scanning electron microscopy and contact angle measurements. Subsequently, hybrid solar cells are fabricated using MEH-PPV and NP-TiO(2), and the effect of IL layers and IL concentrations on device performances are evaluated under AM 1.5 G illumination. The devices containing bmim-BF(4) and benmim-Cl show drastically enhanced open circuit voltages (V(oc)) of 1.05 V and 0.91 V, respectively, while the reference device without an IL layer exhibits a V(oc) of 0.60 V. Significantly improved V(oc) can be attributed to the change in interfacial energy levels by formation of ionic double layers at the TiO(2)/IL and at the IL/MEH-PPV interfaces. We also observed the trend that short circuit current decreased and V(oc) increased with increasing IL concentration, which is ascribed to interruption of charge transfer from MEH-PPV to TiO(2) and the change in interfacial energy level by shifting the vacuum level, respectively. | - |
dc.identifier.bibliographicCitation | PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.12, no.46, pp.15309 - 15314 | - |
dc.identifier.doi | 10.1039/c0cp01754j | - |
dc.identifier.issn | 1463-9076 | - |
dc.identifier.scopusid | 2-s2.0-78349299037 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/2768 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=78349299037 | - |
dc.identifier.wosid | 000284313600021 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Enhanced open circuit voltage by hydrophilic ionic liquids as buffer layer in conjugated polymer-nanoporous titania hybrid solar cells | - |
dc.type | Article | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Physics, Atomic, Molecular & Chemical | - |
dc.relation.journalResearchArea | Chemistry; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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