Abstract
We have prepared 2 % Al-doped ZnO (AZO) thin films on SrTiO3 substrates by a pulsed laser deposition technique at various deposition temperatures (T dep = 300–600 °C). The thermoelectric properties of AZO thin films were studied in a low temperature range (300–600 K). Thin film deposited at 300 °C is fully c-axis-oriented and presents electrical conductivity 310 S/cm with Seebeck coefficient −65 μV/K and power factor 0.13 × 10−3 Wm−1 K−2 at 300 K. The performance of thin films increases with temperature. For instance, the power factor is enhanced up to 0.55 × 10−3 Wm−1 K−2 at 600 K, surpassing the best AZO film previously reported in the literature.
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S. Saini and P. Mele contributed equally to this study.
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Saini, S., Mele, P., Honda, H. et al. Thermoelectric Properties of Al-Doped ZnO Thin Films. J. Electron. Mater. 43, 2145–2150 (2014). https://doi.org/10.1007/s11664-014-2992-x
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DOI: https://doi.org/10.1007/s11664-014-2992-x