| Original Articles |
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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
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| Cite this article: |
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WU Yi-Qun, GU Dong-Hong, GAN Fu-Xi et al 2002 Chin. Phys. Lett. 19 1700-1703 |
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Abstract Ellipsometric parameters of a series of spin-coating thin films of palladium phthalocyanine derivatives with bromine and tetraalkoxyl substitutes [PdPc(OC8H17 4Brm, 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.
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| Keywords:
78.66.Qn
78.20.Ci
42.70.Nq
42.70.Ln
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Published: 01 November 2002
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| PACS: |
78.66.Qn
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(Polymers; organic compounds)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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42.70.Nq
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(Other nonlinear optical materials; photorefractive and semiconductor materials)
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42.70.Ln
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(Holographic recording materials; optical storage media)
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