Study on the Thermal Stability of PEDOT/PSS Film Hybrided with Graphene Oxide | Zendy

Jong Hyuk Choi | Zendy; WanSu Park | Zendy; Seong Min Lee | Zendy; DaeWon Chung | Zendy

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Study on the Thermal Stability of PEDOT/PSS Film Hybrided with Graphene Oxide

Author(s) -

Jong Hyuk Choi,

WanSu Park,

Seong Min Lee,

DaeWon Chung

Publication year - 2016

Publication title -

applied chemistry for engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.144

H-Index - 11

eISSN - 2288-4505

pISSN - 1225-0112

DOI - 10.14478/ace.2016.1050

Subject(s) - pedot:pss , annealing (glass) , materials science , graphene , thermal stability , oxide , thermal conductivity , conductivity , nanotechnology , analytical chemistry (journal) , chemical engineering , composite material , chemistry , metallurgy , organic chemistry , layer (electronics) , engineering

In order to investigate the thermal stability of electro-conductive poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT/PSS), we have prepared films by casting PEDOT/PSS aqueous solution without using a binding material and measured surface resistances of the films while annealing at 200 °C. Electrical properties of films were improved by annealing, and the maximum conductivity (540 S⋅m-1) after annealing for 2 hrs was found to be approximately 3 times higher than that (180 S⋅m-1) of the original film. The conductivities, however, dramatically decreased with an increase in annealing time and dissipated after 24 hrs of annealing. On the other hand, PEDOT/PSS films hybridized with graphene oxide (GO) displayed a salient improvement in conductivity by annealing, which was measured to be around 600 S⋅m-1 even after 30 hrs of annealing at 200 °C. We tentatively conclude that hybridization with GO enhances the thermal stability of PEDOT/PSS.

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