Bismuth-telluride-based alloy thin film thermoelectric generators have excellent thermoelectric performance at room temperature. A traditional method of thermal evaporation is used to deposit thin films of bismuth-telluride-based alloys. The composition of the thin films of bismuth-telluride-based alloys is controlled by the deposition rate when sintered blocks of bismuth-telluride-based alloys are prepared as evaporated material sources. The deposition rate of n-type and p-type layers can be confirmed by material analysis and an electric conductivity measurement. The n-type layer with a low deposition rate and the p-type layer with a high deposition rate can fabricate thermoelectric generators with high performance. The fan-shaped layouts of n-type and p-type layers are integrated with the heat sinks of large aluminum pads to miniaturize thermoelectric generators on flexible polyimide substrates.View full textDownload full textKeywordsthermal evaporation, thin film, bismuth tellurideRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/02533839.2011.591552
展开▼
