Donor-doped ZnO thin films on mica for fully-inorganic flexible thermoelectrics. Issue 6 (3rd June 2019)

• Record Type: Journal Article
• Authors: Paul, Biplab; Khranovskyy, Volodymyr; Yakimova, Rositsa; Eklund, Per
• Is Part Of: Materials research letters. Volume 7:Issue 6(2019)
• Page Start: 239
• Page End: 243
• Publication Date: 2019-06-03
• Subjects: Thermoelectric -- ZnO -- thin film -- fully-inorganic -- flexible; Materials science -- Research -- Periodicals; Biomedical materials -- Research -- Periodicals; Composite materials -- Research -- Periodicals; Biomedical materials -- Research; Composite materials -- Research; Materials science -- Research; Periodicals; 620.1105
• DOI: 10.1080/21663831.2019.1594427
• Languages: English
• ISSNs: 2166-3831

Abstract

ABSTRACT: 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 Zn0.99 Ga0.01 O film in a wide temperature range, from room temperature to 400°C. GRAPHICAL ABSTRACT: IMPACT STATEMENT: For the first time we demonstrate here that ZnO-film-on-mica can be a promising n-type candidate for fully-inorganic flexible thermoelectrics, especially, for applications at elevated temperatures