DJ Hagen, M Karppinen - Journal of Vacuum Science & Technology A, 2020 - pubs.aip.org
Layered cobalt oxides based on the hexagonal CoO 2 layer, eg, Na x CoO 2 and [CoCa 3 O
3] 0.62 CoO 2 (or “Ca 3 Co 4 O 9”), are promising thermoelectric materials. Here, the authors …