Controlling the smoothness of optically transparent gold films by temperature tuning

Erin S. Carmichael, M. Gruebele

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)4495-4501
Number of pages7
JournalJournal of Physical Chemistry C
Issue number11
StatePublished - Mar 19 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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