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CuBr 2 ‐induced charge screening on photoactive nanocolloidal polypyrrole:poly(styrene sulfonate) composite multilayer thin‐film counter electrodes for high‐efficiency dye‐sensitized solar cells
Author(s) -
Maruthamuthu S,
Chandrasekaran J,
Manoharan D,
Karthick SN,
Kim HeeJe,
Saravanakumar B
Publication year - 2016
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5098
Subject(s) - polypyrrole , materials science , sulfonate , dye sensitized solar cell , styrene , energy conversion efficiency , composite number , tin oxide , conductive polymer , counterion , polymerization , chemical engineering , electrode , polymer , polymer chemistry , doping , chemistry , composite material , organic chemistry , optoelectronics , copolymer , electrolyte , sodium , ion , engineering , metallurgy
Polypyrrole ( PPy ):poly(styrene sulfonate) ( PSS ) counter electrode films were treated with CuBr 2 which removed the excess PSS in the films, and as a result of this salt treatment, the plate‐like aggregates of particles were affected, being spread as smaller domains over the entire surface. Increase in roughness is due to the increased grain size after salt treatment which facilitated higher charge transport across the grains.