Preparation and Properties of [Ca2CoO3]x[CoO2] Thin Films Using Pulsed Laser Deposition.

Effects of Pulsed Laser Deposition Conditions on the Microstructure of Ca3Co4O9 Thin Films

“…5,6 CCO thin films so far have been fabricated by radiofrequency (RF) sputtering and pulsed laser deposition (PLD). [7][8][9] However, understanding of the CCO thin-film growth mechanisms and the existence of secondary phases in the thin-film structure 8,9 are limited.…”

Influence of pulsed laser deposition rate on the microstructure and thermoelectric properties of Ca3Co4O9 thin films

“…Moreover, thin film structure also benefits ZT improvement by increasing the thermopower due to quantum confinement effects and reducing the thermal conductivity due to lattice mismatches and scattering at surfaces and interfaces [5,6]. CCO epitaxial thin films have been fabricated by RF sputtering and pulsed laser deposition (PLD) techniques on MgO (1 0 0), sapphire (0 0 0 1) and Si (1 0 0) substrates [7][8][9]. However, thin films with high crystal quality have not been prepared and high-temperature TE properties were also seldom reported.…”

Control of Epitaxial Growth Orientation and Anisotropic Thermoelectric Properties of Misfit-Type Ca3Co4O9 Thin Films

“…Epitaxial preparation of Ca 3 Co 4 O 9 films has already been reported. [10][11][12] However, no studies concerning the perpendicular structure of Ca 3 Co 4 O 9 films have been carried out. In addition to the fundamental knowledge to be gained, the perpendicular structure can also be made useful for device applications by exploiting the current flow along the film thickness, since the CoO 2 layers act as the channel of carrier transport.…”