Donor-doped ZnO thin films on mica for fully-inorganic flexible thermoelectrics

The development of fully-inorganic thin flexible materials is important for flexible thermoelectric applications in a wide temperature range, such as harvesting power from hot curved surfaces (e.g. hot pipes). Here, we investigate the thermoelectric properties of a series of ZnO:Ga,Al thin films with varying dopant concentration deposited on flexible mica substrate by atmospheric pressure metalorganic chemical vapor deposition. The films are bendable, while sustaining the high power factor, above 1 × 10−4 Wm−1 K−2 for singly doped Zn0.99Ga0.01O film in a wide temperature range, from room temperature to 400°C.

Abstract licence: CC BY-NC

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