Thermoelectric behavior of PEDOT:PSS/CNT/graphene composites
-
Yan-Xin Liu
,
Jian-Ping Wang
Abstract
Hybrids of poly(3,4-ethylenedioxythiophene) (PEDOT):poly(4-styrene sulfonate) (PSS)/multi-walled carbon nanotube (MWCNT)/graphene (P/M/G), which have high electrical conductivity and low thermal conductivity, were successfully prepared in aqueous solution through in situ polymerization of 3,4-ethylenedioxythiophene (EDOT) monomers in the presence of poly(sodium 4-styrene sulfonate) (PSSNa). Meanwhile, the composites were characterized by Raman spectroscopy, infrared (IR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy. Thermoelectric properties of the samples were measured at room temperature and 50°C. Compared with pristine PEDOT:PSS (P), PEDOT:PSS/MWCNT (P/M) and PEDOT:PSS/graphene (P/G), the power factor of P/M/G composites was significantly improved, whatever the temperature. It increased from 0.061 μW/mK2 to 0.105 μW/mK2 at room temperature and from 0.070 μW/mK2 to 0.142 μW/mK2 at 50°C, meaning 72% and 103% enhancement, respectively. The increased power factor is attributed to the synergic effects of MWCNT and graphene, a hybrid structure with excellent electronic coupling and more electric channels.
Acknowledgments
This study was financially supported by The National Key Research and Development Program of China (grant no. 2016YFB0303000), and The New Materials Research Key Programm of Tianjin (grant no. 16ZXCLGX00090).
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Material properties
- Persistent inhibition performance of amine polymers to inhibit clay swelling
- Evaluation of stearic acid modified industrial lime sludge waste as a filler in high density polyethylene composites
- Effects of graphene surface energy on the structure and mechanical properties of phenolic foams
- Experimental and theoretical investigations of the high performance blends of PEEK/PEI
- Reciprocating friction and wear of polyimide composites filled with solid lubricants
- Dual pH-/temperature-responsive and fluorescent hydrogel for controlled drug delivery
- Thermoelectric behavior of PEDOT:PSS/CNT/graphene composites
- Investigating the properties of maleated poly(lactic acid) and its effect on poly(lactic acid)/cellulose nanofiber composites
- Preparation of graphene and its application in polycarbonate/acrylonitrile-butadiene-styrene composites
- Preparation and assembly
- Electrospinning of poly(lactic acid)/polycaprolactone blends: investigation of the governing parameters and biocompatibility
Articles in the same Issue
- Frontmatter
- Material properties
- Persistent inhibition performance of amine polymers to inhibit clay swelling
- Evaluation of stearic acid modified industrial lime sludge waste as a filler in high density polyethylene composites
- Effects of graphene surface energy on the structure and mechanical properties of phenolic foams
- Experimental and theoretical investigations of the high performance blends of PEEK/PEI
- Reciprocating friction and wear of polyimide composites filled with solid lubricants
- Dual pH-/temperature-responsive and fluorescent hydrogel for controlled drug delivery
- Thermoelectric behavior of PEDOT:PSS/CNT/graphene composites
- Investigating the properties of maleated poly(lactic acid) and its effect on poly(lactic acid)/cellulose nanofiber composites
- Preparation of graphene and its application in polycarbonate/acrylonitrile-butadiene-styrene composites
- Preparation and assembly
- Electrospinning of poly(lactic acid)/polycaprolactone blends: investigation of the governing parameters and biocompatibility
