Drum-based metal-like film deposition for oxide was investigated using single wavelength in situ monitoring. The data were used to investigate the oxidation mechanism using combined second-order kinetic and parabolic models. A critical Nb2O5 deposition rate of 0.507 nm/s was found at drum rotation of 1 rev/s. However, Nb2O5 samples prepared at varying deposition rates showed that the deposition rate must be much lower than the critical deposition rate to achieve reasonable absorption. Thus simulation for the volume-fraction of metal in the oxide layer was done using effective medium approximation and a distribution function. Simulation gave high agreement with experimental results and allows the prediction of extinction coefficients at various deposition rates.
- Deposition and fabrication
- Materials and process characterization
- Thin films, optical properties
Song, S., Li, C., Chu, H. O., & Gibson, D. (2017). Reactive dynamics analysis of critical Nb2O5 sputtering rate for drum-based metal-like deposition. Applied Optics, 56(4), C206-C210. https://doi.org/10.1364/AO.56.00C206