Well-defined triblock copolymer/TiO2 composite gel electrolytes for high-performance dye-sensitized solar cells
DC Field | Value | Language |
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dc.contributor.author | Seo, Seung Mo | - |
dc.contributor.author | Kim, Chang Ki | - |
dc.contributor.author | Kim, Hwan Kyu | - |
dc.date.accessioned | 2021-09-01T13:36:39Z | - |
dc.date.available | 2021-09-01T13:36:39Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-06-28 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/64722 | - |
dc.description.abstract | A PEG-functionalized macro-RAFT agent was prepared by reacting a DCMBAT (S-dodecyl-S '-(alpha-cyano-alpha '-methyl-alpha ''-butanoic acid)trithiocarbonate) RAFT agent with poly(ethylene glycol) (PEG) in a Steglich esterification reaction. Subsequently, two types of triblock copolymers were prepared by utilizing the PEG-functionalized macro-RAFT agent, and they have structures of PEG-b-(P(AN-co-BMAAm))(2) (SGT-602) and PEG-b-(P(AN-co-DMAAm))(2) (SGT-604). SGT-602 and SGT-604 were successfully dissolved in a liquid electrolyte with acetonitrile (ACN) solvent. The gel electrolyte, SGT-604 or SGT-602, was electrochemically investigated by using a symmetrical dummy cell, in which a thin layer of the gel electrolyte solution is sandwiched between two identical electrodes, and introduced to dye-sensitized solar cells (DSSCs). A TiO2 nanofiller was introduced into the gel electrolytes in order to improve cell performance with a fixed polymer content of 13 wt% and 15 wt% for SGT-602 and SGT-604, respectively. The optimized composition of the TiO2 nanofiller was found to be 10 wt% of the total weight of the polymer gel electrolyte. The resulting TiO2 composite gel electrolytes showed efficiencies of 9.30% and 9.39% for the TiO2 composite gel with SGT-602 (J(sc): 17.98 mA cm(-2), V-oc: 733 mV and FF: 70.59%) and SGT-604 (J(sc): 17.90 mA cm(-2), V-oc: 746 mV and FF: 70.35%), which are comparable to those of liquid-state DSSCs (eta: 9.86%, J(sc): 18.23 mA cm(-2), V-oc: 730 mV and FF: 74.05%). Electrochemical impedance spectra (EIS) and Tafel polarization curves were analyzed to explain the photovoltaic parameters. Finally, the efficiencies were traced under 1 sun illumination at 50 degrees C. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | OPEN-CIRCUIT VOLTAGE | - |
dc.subject | POLYMER ELECTROLYTES | - |
dc.subject | PHOTOVOLTAIC PERFORMANCE | - |
dc.subject | PORPHYRIN DYES | - |
dc.subject | TIO2 | - |
dc.subject | POLYACRYLONITRILE | - |
dc.subject | EFFICIENCY | - |
dc.subject | NANOPARTICLES | - |
dc.subject | ORIGIN | - |
dc.title | Well-defined triblock copolymer/TiO2 composite gel electrolytes for high-performance dye-sensitized solar cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hwan Kyu | - |
dc.identifier.doi | 10.1039/c9ta01907c | - |
dc.identifier.scopusid | 2-s2.0-85067431489 | - |
dc.identifier.wosid | 000474712700036 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.7, no.24, pp.14743 - 14752 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 7 | - |
dc.citation.number | 24 | - |
dc.citation.startPage | 14743 | - |
dc.citation.endPage | 14752 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | OPEN-CIRCUIT VOLTAGE | - |
dc.subject.keywordPlus | POLYMER ELECTROLYTES | - |
dc.subject.keywordPlus | PHOTOVOLTAIC PERFORMANCE | - |
dc.subject.keywordPlus | PORPHYRIN DYES | - |
dc.subject.keywordPlus | TIO2 | - |
dc.subject.keywordPlus | POLYACRYLONITRILE | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | ORIGIN | - |
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