Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 임승순 | - |
dc.date.accessioned | 2018-04-15T06:30:52Z | - |
dc.date.available | 2018-04-15T06:30:52Z | - |
dc.date.issued | 2011-06 | - |
dc.identifier.citation | Journal of Materials Chemistry, 14 June 2011, 21(22), p.8146-8151 | en_US |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | http://pubs.rsc.org/en/content/articlelanding/2011/jm/c1jm10112a/unauth#!divAbstract | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/66558 | - |
dc.description.abstract | Discrete spherical polypyrrole (PPy) nanoparticles with a uniform diameter of similar to 85 nm and electrical conductivity of similar to 10 S cm(-1) were fabricated by chemical oxidative polymerization within micelles composed of myristyl trimethyl ammonium bromide (MTAB) and decyl alcohol as the nanoreactors. A methanol-based colloidal dispersion containing 5 wt% PPy was dropcast directly onto fluorine-doped tin oxide (FTO) glass to use as counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). The surface resistivity of the PPy layer on the FTO glass decreased from 624 to 387 U sq(-1) after post-doping with concentrated HCl vapor for 1 min. The DSSCs made of PPy/FTO and HCl-doped PPy/FTO CEs exhibited power conversion efficiencies of similar to 5.28 and similar to 6.83%, respectively under standard AM 1.5 sunlight illumination. The post-doped and highly oxidized PPy allowed the electrons to move into the PPy layer readily and facilitated the electrocatalytic reaction of the I(3)(-)/I(-) redox couple, giving enhanced cell performance. Moreover, the cell efficiency was enhanced to similar to 7.73% with further fine tuning of the electrolyte composition, which is comparable to the value (similar to 8.2%) using conventional Pt CEs. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Royal Society of Chemistry | en_US |
dc.subject | ORGANIC SENSITIZERS | en_US |
dc.subject | POLYMER | en_US |
dc.subject | TIO2 | en_US |
dc.title | Spherical polypyrrole nanoparticles as a highly efficient counter electrode for dye-sensitized solar cells | en_US |
dc.type | Article | en_US |
dc.relation.no | 22 | - |
dc.relation.volume | 21 | - |
dc.identifier.doi | 10.1039/c1jm10112a | - |
dc.relation.page | 8146-8151 | - |
dc.relation.journal | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.contributor.googleauthor | Jeon, S. | - |
dc.contributor.googleauthor | Kim, C. | - |
dc.contributor.googleauthor | Ko, J. | - |
dc.contributor.googleauthor | Im, S. | - |
dc.relation.code | 2011205376 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ORGANIC AND NANO ENGINEERING | - |
dc.identifier.pid | imss007 | - |
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