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dc.contributor.author장재영-
dc.date.accessioned2019-12-04T01:20:40Z-
dc.date.available2019-12-04T01:20:40Z-
dc.date.issued2018-01-
dc.identifier.citationACS APPLIED MATERIALS & INTERFACES, v. 10, no. 3, page. 2537-2545en_US
dc.identifier.issn1944-8244-
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/acsami.7b16017-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/116987-
dc.description.abstractThe electrical conductivity and catalytic activity of nanofibrous poly(3,4-ethylenedioxythiophene)s (PEDOT NFs) was improved by redoping with dimethyl imidazolium iodide (DMII) as a charge transfer facilitator. Addition of the new DMII dopant into the PEDOT NFs reduced the concentration of dodecyl sulfate anions (DS-) predoped during the polymerization process and concomitantly enhanced the doping concentration of I- by ion exchange. Redoping with DMII increased the mobility of the PEDOT NFs by up to 18-fold and improved the conductivity due to the enhanced linearization, suppressed aggregation, and improved crystallinity of the PEDOT chains. The catalytic activity was also improved, primarily due to the increase in the compatibility and the effective surface area upon replacement of sticky DS- with the more basic and smaller I- of DMII on the surface of the PEDOT NFs. The charge-transfer resistance across the interface between the poly(ethylene oxide)-based solid polymer electrolyte and PEDOT NF counter electrode (CE) was thus reduced to a large extent, giving an energy conversion efficiency (ECE) of 8.52% for solid-state dye-sensitized solar cells (DSCs), which is even better than that achieved with Pt CE (8.25%). This is the highest ECE reported for solid-state DSCs with conductive polymer CEs under 1 sun conditions.en_US
dc.description.sponsorshipThis work was supported by the Korea Center for Artificial Photosynthesis (KCAP) located in Sogang University, funded by the Minister of Science, ICT and Future Planning (MSIP) through the National Research Foundation of Korea (Number 2009-0093883). S.D.G.en_US
dc.language.isoen_USen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectPEDOTen_US
dc.subjectdopingen_US
dc.subjectionic liquidsen_US
dc.subjectmetal-free redox reduction catalystsen_US
dc.subjectsolid-state dye solar cellsen_US
dc.titleImidazolium Iodide-Doped PEDOT Nanofibers as Conductive Catalysts for Highly Efficient Solid-State Dye-Sensitized Solar Cells Employing Polymer Electrolyteen_US
dc.typeArticleen_US
dc.relation.no3-
dc.relation.volume10-
dc.identifier.doi10.1021/acsami.7b16017-
dc.relation.page2537-2545-
dc.relation.journalACS APPLIED MATERIALS & INTERFACES-
dc.contributor.googleauthorKim, Tea-Yon-
dc.contributor.googleauthorWei, Wei-
dc.contributor.googleauthorLee, Tae Kyung-
dc.contributor.googleauthorKim, Byung Su-
dc.contributor.googleauthorPark, Seul Chan-
dc.contributor.googleauthorLee, Sungjin-
dc.contributor.googleauthorSuh, Eui Hyun-
dc.contributor.googleauthorJang, Jaeyoung-
dc.contributor.googleauthorBisquert, Juan-
dc.contributor.googleauthorKang, Yong Soo-
dc.relation.code2018001712-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidjyjang15-
dc.identifier.orcidhttp://orcid.org/0000-0002-5548-8563-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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