Compositional dependence of the optical properties of amorphous Se80−xTe20Bix thin films using transmittance and reflectance measurements

Shaaban, E.R.; Ismail, Yasser A.M.; Hassan, Hazem

doi:10.1016/j.jnoncrysol.2013.05.024

Cited by 49 publications

(20 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mott and Davis[54] have mentioned a similar trend in the thin films of various other amorphous semiconductors. These obtained results are also in good agreement and similar to other authors[3,25,55].…”

supporting

confidence: 93%

See 1 more Smart Citation

Influence of composition on optical and dispersion parameters of thermally evaporated non-crystalline Cd50S50−xSex thin films

Hassanien

Akl

2015

Journal of Alloys and Compounds

513

135

View full text Add to dashboard Cite

supporting

confidence: 93%

“…They include elemental chalcogens, pure or doped S, Se and Te, and their alloys [3]. Chalcogenide alloy also, forms a large group of non-crystalline amorphous compounds.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Influence of composition on optical and dispersion parameters of thermally evaporated non-crystalline Cd50S50−xSex thin films

Hassanien

Akl

2015

Journal of Alloys and Compounds

513

135

View full text Add to dashboard Cite

“…These values at a particular wavelength are given in Table 1 which depicts their increase with increased value of Ga-content in the compositions. Increase in the refractive index with increase in Ga content may be related with the increase of the mean coordination number of semiconductor materials [14][15]. FESEM shown in Fig 1b also supports that as the Ga content is increased, crosslinking increases which is due to increase in the coordination number.…”

Section: Optical Constantssupporting

confidence: 53%

Optical Coefficients and PL Spectra with Variation in Ga-content in GaSeTe Thin Films: Visible Spectrum

Chaudhary¹,

Tripathi²,

Goyal³

2016

J. Nano- Electron. Phys.

View full text Add to dashboard Cite

The optical properties (transmission and emission) for GaxSe85 -xTe15(x  0, 2, 6, 10, 15) semiconductor were studied using UV Visible spectra and PL Spectra of thermally evaporated thin films. Optical band gap is found to be decreasing with increased Ga-content in the compositions. Increase in refractive index, dielectric constants and absorption coefficient is observed in the wavelength region 550-850 nm.The fall in the optical band gap is explained with chemical bond approach and electro negativity. The increase in refractive index (n) is interpreted in association to the mean coordination number and cohesive energy. Direct band gap is found to be allowed in these thin films.

show abstract

“…No peaks attribute to possible impurities is observed. The sharp diffraction peaks signify that the as-prepared ZnO nanorods have high degree of crystallinity [19].…”

Section: Resultsmentioning

confidence: 99%

Sorption Profile of Phosphorus Ions onto ZnO Nanorods Synthesized via Sonic Technique

Elkady

Hassan

Salama

2016

Journal of Engineering

View full text Add to dashboard Cite

High surface area zinc oxide material in nanorod morphological structure was synthesized using an ultrasonic technique in the presence of polyvinyl pyrrolidone as stabilizing agent. The crystallite, morphology, and surface area of the prepared white powder material were identified using XRD, SEM, and BET techniques, respectively. X-ray analysis confirms the high purity of synthesized ZnO. The evaluated specific surface area of prepared ZnO was 16.7 m2/g; this value guarantees high efficiency for water purification. The feasibility of synthesized ZnO nanorods for phosphorus sorption from aqueous solution was established using batch technique. Nano-zinc oxide exhibits high efficiency for phosphorus removal; the equilibrium state was recorded within 90 minutes. The most effective hydrogen ion concentration of the polluted solution was recorded at pH = 1 for phosphorus decontamination. The equilibrium of phosphorus sorption onto ZnO nanorods was well explained using both Langmuir and Temkin isotherm models. The calculated maximum monolayer sorption capacity was 89 mg/g according to Langmuir isotherm at 27°C. In order to explain the phosphorus sorption mechanism onto the prepared ZnO nanorods, three simplified kinetic models of pseudo-first order, pseudo-second order, and intraparticle diffusion rate models were tested. Kinetics was well fitted by pseudo-second order kinetic model with a contribution of intraparticle diffusion.

show abstract

Compositional dependence of the optical properties of amorphous Se80−xTe20Bix thin films using transmittance and reflectance measurements

Cited by 49 publications

References 19 publications

Influence of composition on optical and dispersion parameters of thermally evaporated non-crystalline Cd50S50−xSex thin films

Influence of composition on optical and dispersion parameters of thermally evaporated non-crystalline Cd50S50−xSex thin films

Optical Coefficients and PL Spectra with Variation in Ga-content in GaSeTe Thin Films: Visible Spectrum

Sorption Profile of Phosphorus Ions onto ZnO Nanorods Synthesized via Sonic Technique

Contact Info

Product

Resources

About