한국표면공학회:학술대회논문집 (Proceedings of the Korean Institute of Surface Engineering Conference)
- 한국표면공학회 2018년도 춘계학술대회 논문집
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- Pages.52-52
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- 2018
비정질 산화물 반도체의 열전특성
Transparent Amorphous Oxide Semiconductor as Excellent Thermoelectric Materials
- 발행 : 2018.06.13
초록
Only approximately 30% of fossil fuel energy is used; therefore, it is desirable to utilize the huge amounts of waste energy. Thermoelectric (TE) materials that convert heat into electrical power are a promising energy technology. The TE materials can be formed either as thin films or as bulk semiconductors. Generally, thin-film TE materials have low energy conversion rates due to their thinness compared to that in bulk. However, an advantage of a thin-film TE material is that the efficiency can be smartly engineered by controlling the nanostructure and composition. Especially nanostructured TE thin films are useful for mitigating heating problems in highly integrated microelectronic devices by accurately controlling the temperature. Hence, there is a rising interest in thin-film TE devices. These devices have been extensively investigated. It is demonstrated that transparent amorphous oxide semiconductors (TAOS) can be excellent thermoelectric (TE) materials, since their thermal conductivity (
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