Wu Yi-Qun et al 2002 Chinese Phys. Lett. 19 1700 doi:10.1088/0256-307X/19/11/339
Optical Constants of Palladium Phthalocyanine Derivative Thin Films
Wu Yi-Qun1,2, Gu Dong-Hong1, Gan Fu-Xi1, Wang Jun-Dong3 and Chen Nai-Sheng3
Show affiliationsEllipsometric parameters of a series of spin-coated 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 a linear relationship between the resonance absorption wavelengths of the films and the number of bromine atoms substituted on the phthalocyanine ring.
- PACS
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78.66.Qn Polymers; organic compounds
07.60.Fs Polarimeters and ellipsometers
42.70.Nq Other nonlinear optical materials; photorefractive and semiconductor materials
- Subjects
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Soft matter, liquids and polymers
Condensed matter: electrical, magnetic and optical
Instrumentation and measurement
- Dates
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Issue 11 (November 2002)
Received 17 June 2002
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Optical Constants of Palladium Phthalocyanine Derivative Thin Films
Wu Yi-Qun et al 2002 Chinese Phys. Lett. 19 1700
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