# DC와 RF Magnetron Sputtering 공법을 이용한 다층 TiO2/Al, Cr/TiO2 진주안료 개발

• Published : 2006.08.01

#### Abstract

For the possible application of pearl pigment, multi-layered $TiO_2/Al,\;Cr/TiO_2$ thin film were deposited on $SiO_2$ substrate by using sputtering method, $TiO_2$ and Al or Cr was selected as a possible high and low refraction material 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 $TiO_2/Al,\;Cr/TiO_2$ layers shows a wavelength range of $430{\sim}760nm$, typically color ranges between bluish purple and red. It was confirmed that this experimental result was quite well consistent with the experimental one.

#### References

1. H.-J. Wagner and Ronald H. H. Kroger, 'Adaptive plasticity during the development of colour vision', Progress in Retinal and Eye Research, Vol. 24, Iss. 4, p. 521, 2005 https://doi.org/10.1016/j.preteyeres.2005.01.002
2. D. M. Braun and R. L. Jungerman, 'Broadband multilayer antireflection coating for semiconductor laser facets', Optics Lett., Vol. 20, No. 10, p. 1154, 1995
3. Y. Suzuki, S Nagaoka, and Y Uenishi, 'Direct monitoring of thickness and refractive index of optical thin film deposited on fiber end-face', Optical review, Vol. 6, No.1, p. 77, 1999 https://doi.org/10.1007/s10043-999-0077-5
4. A. Duparre, 'Light scattering of thin dielectric films', in handbook of Optical Properties Vol I, R. E. Hummel and K. H. Gunther Eds, Boca raton, CRC. 1995