Free-Standing PEDOT-PSS/Ca3Co4O9 Composite Films as Novel Thermoelectric Materials

被引：48

作者：

Liu, Congcong ^{[1
]}

Jiang, Fengxing ^{[1
]}

Huang, Mingyu ^{[2
]}

Lu, Baoyang ^{[1
]}

Yue, Ruirui ^{[1
]}

Xu, Jingkun ^{[1
]}

机构：

[1] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Peoples R China

[2] Zhejiang Univ, Dept Control Sci & Engn, Hangzhou 310058, Zhejiang, Peoples R China

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2011年 / 40卷 / 05期

关键词：

PEDOT-PSS; Ca3Co4O9; free-standing film; composites; thermoelectric; CONDUCTIVITY; ENHANCEMENT; PERFORMANCE;

D O I：

10.1007/s11664-010-1465-0

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Free-standing poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT- PSS)/Ca3Co4O9 composite films have been successfully prepared by mechanically blending Ca3Co4O9 powder and PEDOT-PSS solution (Baytron P) and casting the mixed solution on polypropylene (PP) film substrates. X-ray diffraction (XRD) and scanning electron microscopy (SEM) characterization indicated that the Ca3Co4O9 particles were in the shape of sheets and composited well together with PEDOT-PSS. Thermoelectric (TE) measurements revealed that the Seebeck coefficient can be improved by increasing the Ca3Co4O9 content in the composite films, with the largest enhancement being 24.8% compared with a free-standing PEDOT-PSS film. However, it is also shown that the power factor of the composite films decreases with increasing Ca3Co4O9 content, mainly due to the decline of electrical conductivity and the limited improvement of the Seebeck coefficient.

引用

页码：948 / 952

页数：5

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