首页>
外文期刊>Applied physics letters
>Influence of substrate bias voltage on surface morphology and nanocluster arrangement of gold containing amorphous hydrogenated carbon
【24h】
Influence of substrate bias voltage on surface morphology and nanocluster arrangement of gold containing amorphous hydrogenated carbon
展开▼
机译:Influence of substrate bias voltage on surface morphology and nanocluster arrangement of gold containing amorphous hydrogenated carbon
Gold containing amorphous hydrogenated carbon (a-C:H/Au) thin films are studied by means of ex situ atomic-force and scanning electron microscopy, and in situ x-ray photoelectron spectroscopy. Introducing a dc substrate bias voltage during magnetron plasma-assisted chemical-vapor deposition of a-C:H/Au results in significant changes of surface morphology and nanocluster arrangement, compared to films deposited on electrically grounded substrates. Grounded samples are rather flat (below 1 nm of roughness), with topmost Au clusters covered with a very thin, nanometer-range layer of a-C:H. On the other hand, the biased sample surface is characterized by large bump structures (up to 13 nm in height) and bald gold clusters.
展开▼