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TitleBi2Te3 and Sb2Te3 Thin Films with Enhanced Thermoelectric Properties for Flexible Thermal Sensors
Author(s)Vieira, Eliana Maria Fernandes
Figueira, Joana
Pires, Ana Lucia
Grilo, José
Silva, Manuel Fernando Ribeiro
Pereira, André Miguel
Gonçalves, L. M.
Issue date11-Dec-2018
PublisherMultidisciplinary Digital Publishing Institute
Abstract(s)The influence of substrate type in boosting thermoelectric properties of co-evaporated Bi2Te3 and Sb2Te3 films (with 400 nm-thick) is here reported. Optimized power factor values are 2.7 × 10<sup>−3</sup> W K<sup>−2</sup> m<sup>−1</sup> and 1.4 × 10<sup>−3</sup> W K<sup>−2</sup> m<sup>−1</sup> for flexible Bi2Te3 and Sb2Te3 films, respectively. This is an important result as it is at least 2 times higher than the power factor found in the literature for flexible Bi2Te3 and Sb2Te3 films. A flexible infrared thermopile sensor was developed with high detectivity (2.50 × 10<sup>7</sup> cm √HzW<sup>−1</sup>).
TypeConference paper
AccessOpen access
Appears in Collections:BUM - MDPI

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