Dispersion Characterization of conductive polymer

作者：Oboudi Saad F^*; Abdul Nabi Mohammed T; Al Taa'y Wasan A; Yusop Rahimi M; Derawi Darfizzi; Yousif Emad

来源：International Journal of Electrochemical Science, 2015, 10(2): 1555-1562.

DOI：10.1016/s1452-3981(23)05093-9

• PMMA
• NiCl2
• Conductive polymer
• Optical Properties
• Dispersion parameters

Pure and doped PMMA films with NiCl2 have been deposited by using casting method. Optical measurements were studied by UV-VIS technique in the wavelength ranges (200-800)nm. The optical properties and dispersion parameters of films have been studied as a function of doping concentration of NiCl2. Changes in direct optical energy band gap of films were confirmed after doping, the optical energy gap decreased from 3.29eV for the pure PMMA to 1.90eV after increasing the doping concentration of NiCl2 to 0.4%, These result were inversely with the Urbach tails where increased from 278 to 702 meV. The changes in optical properties and dispersion parameters were investigated. An increase in the doping concentration causes an increase in the reflectance, absorption coefficient and in the average oscillator strength from 1.73 to 4.29 eV. The transmittance, single-oscillator energy, static refractive index, static dielectric constant, moments of the imaginary part of the optical spectrum, average oscillator position and average oscillator strength were decreases with increasing NiCl2 content.

• 出版日期2015-2