Synthesis and Characterization of Al- and SnO<sub>2</sub>-Doped ZnO Thermoelectric Thin Films
The effect of SnO<sub>2</sub> addition (0, 1, 2, 4 wt.%) on thermoelectric properties of <i>c</i>-axis oriented Al-doped ZnO thin films (AZO) fabricated by pulsed laser deposition on silica and Al<sub>2</sub>O<sub>3</sub> substrates was investigated. T...
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Autores principales: | , , , , , , , , , , , , |
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Formato: | article |
Lenguaje: | EN |
Publicado: |
MDPI AG
2021
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Materias: | |
Acceso en línea: | https://doaj.org/article/d9581348107f464b816419970f6968a3 |
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Sumario: | The effect of SnO<sub>2</sub> addition (0, 1, 2, 4 wt.%) on thermoelectric properties of <i>c</i>-axis oriented Al-doped ZnO thin films (AZO) fabricated by pulsed laser deposition on silica and Al<sub>2</sub>O<sub>3</sub> substrates was investigated. The best thermoelectric performance was obtained on the AZO + 2% SnO<sub>2</sub> thin film grown on silica, with a power factor (<i>PF</i>) of 211.8 μW/m·K<sup>2</sup> at 573 K and a room-temperature (300 K) thermal conductivity of 8.56 W/m·K. <i>PF</i> was of the same order of magnitude as the value reported for typical AZO bulk material at the same measurement conditions (340 μW/m·K<sup>2</sup>) while thermal conductivity <i>κ</i> was reduced about four times. |
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