| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
|
| Presentation Title |
Growth of Complex Oxide Thin Films with Nanoscale Porosity by Pulsed Laser Deposition |
| Author(s) |
Huiming Guo, Xin Wang, Alexander Davis Dupuy, Julie Schoenung, William Bowman |
| On-Site Speaker (Planned) |
Huiming Guo |
| Abstract Scope |
Pulsed laser deposition (PLD) is a high-quality thin-film fabrication technique that can effectively translate crystal structure and stoichiometry of bulk functional complex oxide to nanometer-scale films with three-dimensional island structure. As a vital parameter in PLD, laser energy fluence (pulse energy per unit area), related to kinetic energy of adatoms, plays a critical role in crystal structure and morphology of thin films. Increasing energy fluence accelerates crystallite nucleation and growth even at low substrate temperature, therefore beneficial to single-phase thin film deposition of multicomponent oxides which otherwise would normally form secondary phases at elevated temperatures, like rock-salt complex concentrated oxide (CCO) (Co0.2Ni0.2Cu0.2Mg0.2Zn0.2)O [1]. In this work, we present an experimental study showing the lateral size of columnar grains, islands and nanopores as well as film thickness can be regulated by energy fluence [2], which will be used for customizing design of multiphase reaction interface in electrodes, sensors, catalysts, etc. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Ceramics, Energy Conversion and Storage |