Benoy, M D; Dr.Pradeep, B(Cochin University of Science and Technology, May 7, 2001)
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Abstract:
The investigation of physical properties of matter has progressed so much
during the last hundred years. Today physics is divided in to a large distinct group
of special branches. These branches are distinguished by the particular area
studied, method of investigation and so on. An independent and important branch
that has developed is the physics ofthin films.Any object in solid or liquid form with one of its dimensions very much
smaller than that of the other two may be called a thin film. It is having only one
common property, namely, one of their dimensions is very small, though all their
physical properties may be different. Thin layers of oil, floating on the surface of
water, with their fascinating colours, have attracted men’s curiosity from time
immemorial. The earliest application of thin films was the protective coatings in
the form of paints. A thin layer of tin has been used from ancient times to protect
copper utensils from corrosion. Indium thin films are used in certain applications
on account of their good lubricating property. Relay contacts are coated with thin
films of rare earth metals in order to prevent burning due to arcing. Hard coatings
are also available using diamond like carbon (i-carbon). The basic properties of
thin films are of considerable interest because of their potential applications in
various fields of science and technology
Description:
Department of Physics, Cochin University of Science And
Technology