In order to reveal the influence of ITO film thickness on optical
transmittance
and colouration，the visible transmittance， average transmittance and the
transmittance
at 550 nm ( the human eyes sensitive wavelength) were calculated by mean
of
TFCalc optical film design software. The influence of thickness and
incident angle on the
transmittance and colouration of ITO films was investigated by the theory
of film interference. The
results suggested that a series of transmission peaks appear with
increasing the ITO film
thickness. With the in- crease of the film thickness，the optical
transmittance of ITO films is
serrated as well as the average transmittance and transmittance at 550 nm.
Accordingly，the
colouration of ITO film changes periodically. When the incident an- gle
increases from 30 to 60
degree，the colouration of the ITO films with thickness of 300 nm changes
from dark
purple to bright purple. The color chart of ITO films was established in
this paper，which provides
technical support for industrial control and improvement of colouration of
ITO films.
Just Accepted
