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- Title
Thermoelectric Performance of Poly(3,4-Ethylenedioxy-thiophene)/Poly(Styrenesulfonate) Pellets and Films.
- Authors
Liu, Congcong; Jiang, Fengxing; Huang, Mingyu; Yue, Ruirui; Lu, Baoyang; Xu, Jingkun; Liu, Guodong
- Abstract
The thermoelectric performance of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) pellets and free-standing PEDOT/PSS films, prepared from PEDOT/PSS solution containing the additives dimethyl sulfoxide or ethylene glycol, have been systematically investigated. It has been found that the electrical conductivity of free-standing PEDOT/PSS films is invariably much higher than that of PEDOT/PSS pellets, while there is no distinct change in the Seebeck coefficient. The highest electrical conductivity of a free-standing PEDOT/PSS film can be up to 300 S cm, five to six times higher than that of PEDOT/PSS pellets (55 S cm). The thermal conductivity was measured over a wide temperature range, indicating that PEDOT/PSS has extremely low thermal conductivity. The figure of merit ( ZT) of free-standing PEDOT/PSS films with good environmental stability can be up to 10, an order of magnitude higher than that of pressed PEDOT/PSS pellets (10).
- Subjects
THIOPHENES; SULFONATES; THERMOELECTRIC materials; CONDUCTING polymers; ELECTRIC conductivity; DIMETHYL sulfoxide; THIN films; THERMAL conductivity
- Publication
Journal of Electronic Materials, 2011, Vol 40, Issue 5, p648
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-010-1494-8