Optical Constants of Palladium Phthalocyanine Derivative Thin Films
WU Yi-Qun1,2, GU Dong-Hong1, GAN Fu-Xi1, WANG Jun-Dong3, CHEN Nai-Sheng3
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800
2Laboratory of Functional Materials, Heilongjiang University, Haerbin 150080
3Department of Chemistry, Fuzhou University, Fuzhou 350002
Optical Constants of Palladium Phthalocyanine Derivative Thin Films
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800
2Laboratory of Functional Materials, Heilongjiang University, Haerbin 150080
3Department of Chemistry, Fuzhou University, Fuzhou 350002
Abstract： Ellipsometric parameters of a series of spin-coating thin films of palladium phthalocyanine derivatives with bromine and tetraalkoxyl substitutes [PdPc(OC8H174Brm, m = 0,2,3,4] are determined from a rotating analyser-polarizer type of scanning ellipsometer. The optical, dielectric constants and absorption coefficients of the films in the 500-800 nm wavelength region are reported. The results show that refractive index N (N = n-k), dielectric constant ε (ε = ε1 - ε2) and absorption coefficient α in the region 500-800 nm are influenced by bromine atom substituted on the conjugated phthalocyanine ring regularly. It is found that there is approximately linear relationship between the resonance absorption wavelengths of the films and the number of bromine atoms substituted on the phthalocyanine ring.
2002, Vol. 19 
