Nanocomposites with Independently Controlled Properties of the Thermoelectric Material for High Figure of Merit

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$99,950.00
Award Year:
2004
Program:
STTR
Phase:
Phase I
Contract:
W911NF-04-C-0063
Award Id:
68420
Agency Tracking Number:
A045-007-0047
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
184 Cedar Hill Street, Marlborough, MA, 01752
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
121001945
Principal Investigator:
Jae Ryu
CTO
(508) 481-5058
jryu@aspensystems.com
Business Contact:
Kang Lee
CEO
(508) 481-5058
klee@aspensystems.com
Research Institution:
Clemson University
Michael Strickland
300 Brackett Hall
Clemson, SC, 29634
(864) 656-6444
Nonprofit college or university
Abstract
Aspen Systems proposes to develop advanced nanocomposite materials to achieve high thermoelectric figure of merit by incorporating nanoparticles with high Seebeck coefficients within a high surface area semiconducting matrix with extremely low thermal conductivity and high electrical conductivity. In the proposed nanocomposite structure, we will achieve the high hot charge carrier generation efficiency by selecting the high Seebeck coefficient particles. High electric charge collection efficiency and low thermal conductivity will be achieved by fabricating highly doped semiconducting matrix by employing the reactive pyrolysis of high surface area matrix. By decoupling constituents of the thermoelectric Figure of Merit, we can independently control the materials properties without affecting others and consequently achieve the high thermoelectric figure of merit. In Phase I, we will experimentally demonstrate the proposed concept of high thermoelectric Figure of Merit by fabricating and testing nanocomposites of thermoelectric nanoparticles embedded within high surface area boron-silicon-carbon based matrix. By modifying compositional stoichiometry, we can control electrical conductivity and charge transport mechanism in the matrix. Based on these experimental results, we will also elucidate the charge transport mechanism operating in nanocomposite structures. In Phase II, we will fabricate and test the high efficiency thermoelectric modules for intended applications.

* information listed above is at the time of submission.

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