We investigate the effect of temperature tuning on the deposition of gold films onto sapphire. Transparent conductive films with roughness as low as 0.4 Å rms at 10 nm thickness allow STM imaging of aerosoldeposited carbon nanotubes. A Monte Carlo lattice model explains the experimentally observed surfaceroughening trends and shows that the interplay of deposition-induced kinetic roughening and thermal annealing and roughening can be optimized. Intrinsic surface roughness (e.g., stepping), previously postulated to play a role in film roughness, is not found to be important.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films