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Polymer Chemistry 2018

Polymer Sciences

ISSN: 2471-9935

Page 36

March 26-28, 2018

Vienna, Austria

3

rd

Edition of International Conference and Exhibition on

Polymer Chemistry

T

hermoelectric materials could be applied as thermal

power generators to convert heat directly into electrical

energy or as a solid state Peltier cooler. In general, traditional

thermoelectric materials include alloy such as Bi

2

Te

3

,

Sb

2

Te

3

PbTe, etc. Recently, conducting polymer-based

semiconductors have been gradually receiving much attention

as conducting polymers are able to offer many advantages

such as low cost, lightweight, flexibility and solution-process

fabrication. In addition, conducting polymeric materials with

intrinsically low thermal conductivity, which is over two to

three orders of magnitude lower than that of commercial

inorganic materials, make them as potential candidates for

high performance thermoelectric applications. However, the

efficiency of conducting polymeric materials is still much

lower than that of inorganic counterparts such as Bi

2

Te

3

and Sb

2

Te

3

. The thermoelectric performance of a material is

usually judged by a dimensionless thermoelectric figure of

merit (ZT), which is calculated in terms of ZT = S

2

σT/κ, where

S, σ, T and κ are the Seebeck coefficient, electrical conductivity,

absolute temperature and thermal conductivity, respectively.

As the thermal conductivity of conducting polymers is usually

less than 1 W/mK, much work is focused on how to enhance

the electrical conductivity and Seebeck coefficient or how to

obtain a proper balance between electrical conductivity and

Seebeck coefficient so as to achieve thermoelectric materials

with a high ZT value. This presentation will highlight recent

advances of highly conductive polymers including poly(3,4-

ethylenedioxythiophene) and related analogous polymers for

thermoelectric applications.

Biography

Jianwei Xu is currently a Principal Scientist, Strategic Research Councillor

at the Institute of Materials Research and Engineering (IMRE), Agency for

Science, Technology and Research (A*STAR), and he is an Adjunct Research

Associate Professor in the Department of Chemistry at the National Univer-

sity of Singapore (NUS). He is also Program Manager of the Hybrid Ther-

moelectric Program of Science and Engineering Research Council (SERC),

A*STAR. His research interests include: functional π molecular and conju-

gated polymer materials for electrochromic and thermoelectric applica-

tions, organic-inorganic hybrid materials and aggregation-induced emission

(AIE)-active materials.

[email protected]

Highly conducting polymers for thermoelectric applications

Jianwei Xu

Agency for Science, Technology and Research, Singapore

Jianwei Xu, Polym Sci, Volume 4

DOI: 10.4172/2471-9935-C1-008