The Optical Properties of $TiO_2/Al/TiO_2$, $TiO_2/Cr/TiO_2$ Multi-layered Pearl-pigment films by DC, RF Magnetron Sputtering

DC, RF Magnetron Sputtering 공법을 이용한 다층 $TiO_2/Al/TiO_2$, $TiO_2/Cr/TiO_2$ 진주안료용 필름의 광학적 특성

For the possible applicative pearl pigment, multi-layered $TiO_2/Al/TiO_2$, $TiO_2/Cr/TiO_2$ thin film was deposited on glass substrate by using sputtering method. $TiO_2$ and Al or Cr was selected as a possible high and low refraction materials at the film interface respectively. Optical properties including color effect were systematically studied in terms of different film thickness and film layers by using spectrometer. In order to expect the experimental results, the simulation program, the Essential Macleod Program(EMP) was adopted and compared with the experimental data. The film consisting of $TiO_2/Al/TiO_2$, $TiO_2/Cr/TiO_2$ layers show the wavelength range of 430 - 760nm, typically color ranges between bluish purple and red. It was confirmed that this experimental result was quite well matched with the experimental one.