Influence of heat treatment and gamma-rays irradiation on the structural and optical characterizations of nano-crystalline cobalt phthalocyanine thin films

El-Nahass, M.M.; Farag, A.A.M.; Atta, A.A.

doi:10.1016/j.synthmet.2008.11.029

Cited by 81 publications

(26 citation statements)

References 25 publications

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“…The complex refractive index for the films is expressed by e n ¼ n À ik, where n is the refractive index and k is the extinction coefficient. The absorption coefficient α was computed from the experimental measurements of the transmittance T (l) and reflectance R (l) using the following equation [18]:…”

Section: Methods Of Optical Constants Calculationsmentioning

confidence: 99%

Optical and photoluminescence properties of Ga doped ZnO nanostructures by sol-gel method

et al. 2012

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Zinc oxide (ZnO) nanocrystallites with different Ga-doping levels were successfully prepared by spin coating sol-gel technique. The morphological properties of Ga doped ZnO films were studied by atomic force microscopy (AFM). Alignment of ZnO nanorods with respect to the substrate depends on the amount of Ga dopant content. The dopant content varies from 1 % to 4 %, based on Ga-doping levels. The optical properties of the ZnO nanocrystallites following Ga-doping were also investigated by UV-Visible absorption and Photoluminescence spectra. Our results indicate that Gadoping can change the energy-band structure and effectively adjust the intensity of the luminescence properties of ZnO nanocrystallites. Transmittance spectra of the films indicate that the films have high transparency. The refractive index dispersion was analyzed by single oscillator model developed by Wemple and DiDomenico. The oscillator energy, dispersion energy, high frequency dielectric constant values for the films were determined were calculated and it is found that the optical parameters are changed with Ga-doping content.

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Section: Methods Of Optical Constants Calculationsmentioning

confidence: 99%

Optical and photoluminescence properties of Ga doped ZnO nanostructures by sol-gel method

et al. 2012

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“…The reflectance was measured at the incidence angle of 5 • with an aluminum reference mirror. The absolute values of measured transmittance and reflectance, after correcting both the absorbance and reflectance of the substrates, are given by [5,16] …”

Section: Methodsmentioning

confidence: 99%

“…6(a) and (b). The data of the spectral dependence of the refractive index have been evaluated according to the single-effective-oscillator model [5,16].…”

Section: G(y) Thin Filmsmentioning

confidence: 99%

“…The oscillator energy, the dispersion energy, and the high frequency dielectric constant (ε ∞ ) have been determined from the intercept and the slope of the straight lines. The relation between the lattice dielectric constant (ε L ) and the refractive index (n) is given by [5,16,19] …”

Section: G(y) Thin Filmsmentioning

confidence: 99%

“…They exhibit high absorption coefficient, easy processed and can be functionalized to obtain the required optical and electrical properties [1]. The organic pigment have been used to fabricate organic photo receptor as a charge photogenerating materials for electro-photography and organic photovoltaic devices [4,5]. The molecular system of the pyronine shows the phenomenon of extended conjugation which is, in fact, responsible for its absorption in the longer wavelength, i.e.…”

Section: Introductionmentioning

confidence: 99%

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Effects of γ-irradiation and heat treatment on structural, spectral and optical parameters of pyronine G(Y) thin films

Soliman

El-Barry

Yaghmour³

et al. 2009

Journal of Alloys and Compounds

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Thorium (IV) phosphate‐polyaniline composite‐based hydrophilic membranes for bending actuator application

Khan

Inamuddin

Jain

et al. 2016

Polymer Engineering & Sci

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In the present study, ionic polymer metal composite (IPMC) membrane actuator based on triple‐layered thorium(IV) phosphate/polyaniline/Pt (ThP‐PANI‐Pt) was prepared via consecutive solution recasting and electroless plating methods. The triple‐layered membrane is composed of thorium(IV) phosphate (ThP) inorganic cation exchanger layer in the middle section, two layers of polyaniline deposited through in situ polymerization and finally Pt electrode layers on both the surfaces on the outer section. The water uptake capacity of the ThP‐PANI composite polymer membrane was found to be 95.40% at 45ºC for 10 h of immersion time. The ion exchange capacity and proton conductivity was found to be 1.6 meq g−1of dry membrane and 1.12 × 10−3 S cm−1, respectively. Maximum water loss from IPMC was 38% at 4 V for a time period of 12 min. Scanning electron micrographs shows the smooth and uniform coating of Pt on both side of composite polymer membrane surfaces. Cyclic voltammetry, linear sweep voltammetry, transmission electron microscopy, Fourier transforms infrared spectroscopy, thermal gravimetric analysis, X‐ray diffraction, and tip displacement of ThP‐PANI‐Pt IPMC membrane actuator was also examined. POLYM. ENG. SCI., 57:258–267, 2017. © 2016 Society of Plastics Engineers

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Influence of heat treatment and gamma-rays irradiation on the structural and optical characterizations of nano-crystalline cobalt phthalocyanine thin films

Cited by 81 publications

References 25 publications

Optical and photoluminescence properties of Ga doped ZnO nanostructures by sol-gel method

Optical and photoluminescence properties of Ga doped ZnO nanostructures by sol-gel method

Effects of γ-irradiation and heat treatment on structural, spectral and optical parameters of pyronine G(Y) thin films

Thorium (IV) phosphate‐polyaniline composite‐based hydrophilic membranes for bending actuator application

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