期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 5, 期 11, 页码 9481-9486出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee22838f
关键词
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资金
- US Air Force Office of Scientific Research under the Dr Charles Lee, II-VI foundation
- National Research Foundation of Korea [2011-0001645]
- Ministry of Education, Science and Technology
- US National Science Foundation [CMMI 1030958]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1030958] Funding Source: National Science Foundation
This report demonstrates an exciting new paradigm for thermoelectric energy conversion with both n- and p-type organic materials that possess mechanical flexibility, simple fabrication processes, and stability in air. In order to synthesize n-type samples with membranes and papers, carbon nanotubes were doped with both polyethyleneimine (PEI) and sodium borohydride (NaBH4), showing excellent n-type characteristics with thermopower values as large as -80 mu V K-1. Thermoelectric modules made of both n- and p-type composites were fabricated to demonstrate thermoelectric voltage and power generation with one, two, and three p-n couples connected in series. The testing modules produced similar to 6 mV thermoelectric voltage, with similar to 25 nW generated power upon application of similar to 22 degrees C temperature gradients. These promising results show that further work with many junctions connected in series would result in scalable organic p-n couple modules, which can generate power from temperature gradients or provide cooling for various electronic devices.
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