Final rept. 15 Apr 96-15 Apr 98,
CAPE COD RESEARCH INC EAST FALMOUTH MA
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The research effort described herein investigated the feasibility of developing hybrid organic-inorganic compositions that possess superior thermoelectric properties. The results have identified composite materials in which very high Seebeck coefficients of up to 1000 microVK have been coupled with very good electrical conductivities. A key goal of the Phase II effort was to increase the electrical conductivities, which was achieved. It was hoped that the very high Seebeck coefficients would not be affected by an increase in electrical conductivity. However, upon achieving conductivities of the order of 4.5 Scm, the Seebeck dropped dramatically to very low or non-measurable levels. That is, although close to metallic conductivities were attained the corresponding zT was not improved. On the positive side the compositions were easily processed. In addition, computational modeling studies correlated electrical properties with molecular structure in a predictive manner.
- Electricity and Magnetism