Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
72 (1992), S. 4458-4460
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Transmission electron microscopy was used to analyze the effects of annealing treatments on the morphologies of discontinuous gold films evaporated onto polystyrene or poly(2-vinylpyridine) substrates. For polystyrene substrates the average size of discrete gold particles increases significantly during a long-term annealing treatment at 179 °C. The size distribution is well approximated by a log normal distribution function, consistent with a coalescence mechanism for particle growth. The fluid character of the polymer substrates at the annealing temperature of interest allows us to control this coalescence rate, thereby providing a unique method for controlling the microstructure of discontinuous metal films. Cross-sectional transmission electron microscopy showed that the coalescence rate for gold particles in a poly(2-vinylpyridine) matrix is much less than the coalescence rate for gold particles in a polystyrene matrix, indicating that polymer/metal interactions play an important role in the determination of the coalescence rate.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.352362
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