You need JavaScript to view this

Thermoelectric behavior of conducting polymers: On the possibility of off-diagonal thermoelectricity

Abstract

Non-cubic materials, when structurally aligned, possess sufficient anisotropy to exhibit thermoelectric effects where the electrical and thermal currents are orthogonal (off-diagonal thermoelectricity). The authors discuss the benefits of this form of thermoelectricity for devices and describe a search for suitable properties in the air-stable conducting polymers polyaniline and polypyrrole. They find the simple and general correlation that the logarithm of the electrical conductivity scales linearly with the Seebeck coefficient on doping but with proportionality in excess of the conventional prediction for thermoelectricity. The correlation is unexpected in its universality and unfavorable for thermoelectric applications. A simple model suggests that mobile charges of both signs exist in these polymers, and this leads to reduced thermoelectric efficiency. They also briefly discuss non air-stable polyacetylene, where ambipolar transport does not appear to occur, and where properties seem more favorable for thermoelectricity.
Publication Date:
Jul 01, 1997
Product Type:
Conference
Reference Number:
EDB-00:007305
Resource Relation:
Conference: 1997 Materials Research Society Spring Meeting, San Francisco, CA (US), 03/31/1997--04/03/1997; Other Information: Single article reprints are available through University Microfilms Inc., 300 North Zeeb Road, Ann Arbor, Michigan 48106; PBD: 1997; Related Information: In: Thermoelectric materials -- New directions and approaches. Materials Research Society symposium proceedings, Volume 478, by Tritt, T.M.; Kanatzidis, M.G.; Lyon, H.B. Jr.; Mahan, G.D. [eds.], 359 pages.
Subject:
30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; THERMOELECTRIC MATERIALS; THERMOELECTRICITY; SEEBECK EFFECT; THERMOELECTRIC PROPERTIES; ORGANIC POLYMERS; USES
Sponsoring Organizations:
USDOE
OSTI ID:
20014264
Research Organizations:
TecOne, Inc., Tallahassee, FL (US)
Country of Origin:
United States
Language:
English
Other Identifying Numbers:
Other: ISBN 1-55899-382-7; TRN: IM200012%%192
Availability:
Materials Research Society, 506 Keystone Drive, Warrendale, PA 15086 (US); $71.00. Prices may become outdated.
Submitting Site:
DELTA
Size:
page(s) 243-248
Announcement Date:

Citation Formats

Mateeva, N, Niculescu, H, Schlenoff, J, and Testardi, L. Thermoelectric behavior of conducting polymers: On the possibility of off-diagonal thermoelectricity. United States: N. p., 1997. Web.
Mateeva, N, Niculescu, H, Schlenoff, J, & Testardi, L. Thermoelectric behavior of conducting polymers: On the possibility of off-diagonal thermoelectricity. United States.
Mateeva, N, Niculescu, H, Schlenoff, J, and Testardi, L. 1997. "Thermoelectric behavior of conducting polymers: On the possibility of off-diagonal thermoelectricity." United States.
@misc{etde_20014264,
title = {Thermoelectric behavior of conducting polymers: On the possibility of off-diagonal thermoelectricity}
author = {Mateeva, N, Niculescu, H, Schlenoff, J, and Testardi, L}
abstractNote = {Non-cubic materials, when structurally aligned, possess sufficient anisotropy to exhibit thermoelectric effects where the electrical and thermal currents are orthogonal (off-diagonal thermoelectricity). The authors discuss the benefits of this form of thermoelectricity for devices and describe a search for suitable properties in the air-stable conducting polymers polyaniline and polypyrrole. They find the simple and general correlation that the logarithm of the electrical conductivity scales linearly with the Seebeck coefficient on doping but with proportionality in excess of the conventional prediction for thermoelectricity. The correlation is unexpected in its universality and unfavorable for thermoelectric applications. A simple model suggests that mobile charges of both signs exist in these polymers, and this leads to reduced thermoelectric efficiency. They also briefly discuss non air-stable polyacetylene, where ambipolar transport does not appear to occur, and where properties seem more favorable for thermoelectricity.}
place = {United States}
year = {1997}
month = {Jul}
}