Structural, optical and dispersion characteristics of nanocrystalline GaN films prepared by MOVPE

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

doi:10.1016/j.optlastec.2011.08.021

Cited by 54 publications

(10 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be observed that the values of χ (3) decrease, because they depend on the values of the static refractive index, that decrease with the increasing power of the pulsed laser annealing due to the improvement of the crystallinity degree of ZnSe thin film samples. These results are in good agreement with the previous literature[52][53][54]. The nonlinear refractive index is related to the optical band gap (E g ) as expressed by the semi-empirical relation proposed by Tichá and Tichý[55]:…”

supporting

confidence: 91%

“…where B = 1.7× 10 ିଵ [esu] and is independent on the frequency, while n(0) is the static refractive index of samples [52,53]. It is worthy to mention here that the third-order nonlinear susceptibility χ (3) can be generalized for both the crystalline and amorphous materials [50][51][52][53].…”

Section: Nonlinear Optical Analysis and Optical Electronegativitymentioning

confidence: 99%

“…It is worthy to mention here that the third-order nonlinear susceptibility χ (3) can be generalized for both the crystalline and amorphous materials [50][51][52][53]. The values of χ (3) were calculated and listed in …”

Section: Nonlinear Optical Analysis and Optical Electronegativitymentioning

confidence: 99%

See 2 more Smart Citations

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Hassanien

Aly

Akl

2016

Journal of Alloys and Compounds

173

View full text Add to dashboard Cite

supporting

confidence: 91%

Section: Nonlinear Optical Analysis and Optical Electronegativitymentioning

confidence: 99%

See 1 more Smart Citation

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Hassanien

Aly

Akl

2016

Journal of Alloys and Compounds

173

View full text Add to dashboard Cite

“…The E g value of GaN thin films was found to be B3.45 eV, which is relatively close to the widely accepted value of 3.43 eV for GaN thin films. 45 The E g value of The refractive index dispersion curves of In x Ga 1Àx N thin films were determined using spectroscopic ellipsometry measurements and the following data analysis. Fig.…”

Section: Resultsmentioning

confidence: 99%

Low-temperature grown wurtzite In_xGa_1−xN thin films via hollow cathode plasma-assisted atomic layer deposition

et al. 2015

View full text Add to dashboard Cite

show abstract

“…In addition, depending on refractive index (n), the molar polarizability (α p ) in the UV-Vis region (200-800 nm) can be determined from the local-field polarizability model of Clausius-Mossotti [67,68] :…”

Section: Linear and Nonlinear Optical Propertiesmentioning

confidence: 99%

Novel Mn(II) and Zn(II) complexes of 6‐bromopicolinic acid as a potential optical material: Synthesis, spectral characterizations, linear, and nonlinear optical properties and density functional theory calculations

Avcı

Saeedi

Başoğlu

et al. 2020

Applied Organom Chemis

View full text Add to dashboard Cite

The Mn(II) and Zn(II) complexes of 6-bromopicolinic acid (6-BrpicH) were synthesized for the first time, and their molecular structures were determined by X-ray diffraction (XRD) technique. The detailed experimental spectral studies were executed by Fourier-transform infrared (FT-IR) and UV-Vis spectra. The experimental optical properties, such as refractive index, linear polarizability, optical susceptibility, optical band gap, extinction coefficient, dielectric constant, and volume energy loss function (VELF) and surface energy loss function (SELF) parameters obtained from the transmission spectra with solution technique in ethanol solvent of these complexes, were investigated. Additionally, the refractive index (n), optical band gap, χ (1) (linear optical susceptibility), χ (3) (third-order nonlinear optical susceptibility), and first-and second-hyperpolarizability (β and γ) parameters were surveyed by using density functional theory (DFT)/HSEh1PBE/6-311G(d,p)/LanL2DZ level. The experimental and theoretical optical band gap energies of complex 2 were obtained at 4.26 and 4.67 eV. The experimental and theoretical n values of complex 1 in the mid-IR region were found to be 1.581 and 1.58 (in gas phase). The experimental linear optical α and χ (1) parameters were calculated at 31.73 × 10 −24 and 14.58 × 10 −2 esu for complex 1 in the mid-IR region; the corresponding theoretical parameters for complex 1 in the gas phase were obtained at 36.07 × 10 −24 and 18.35 × 10 −2 esu. The second-order nonlinear optical (NLO) results exhibit that complex 1 is a promising candidate to materials with the high second-order hyperpolarizability values obtained as 540.71 × 10 −36 and 56.83 × 10 −36 esu in ethanol solvent and gas phase. Moreover, the intermolecular and intramolecular bonding and the definition of coordination geometries around the central metal ions, as well as the electronic charge transfer interactions in the Mn(II) and Zn(II) complexes, were confirmed by natural bond orbital (NBO) analysis. To sum up, the detailed

show abstract

Structural, optical and dispersion characteristics of nanocrystalline GaN films prepared by MOVPE

Cited by 54 publications

References 49 publications

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Low-temperature grown wurtzite In_xGa_1−xN thin films via hollow cathode plasma-assisted atomic layer deposition

Novel Mn(II) and Zn(II) complexes of 6‐bromopicolinic acid as a potential optical material: Synthesis, spectral characterizations, linear, and nonlinear optical properties and density functional theory calculations

Contact Info

Product

Resources

About

Structural, optical and dispersion characteristics of nanocrystalline GaN films prepared by MOVPE

Cited by 54 publications

References 49 publications

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

Low-temperature grown wurtzite InxGa1−xN thin films via hollow cathode plasma-assisted atomic layer deposition

Novel Mn(II) and Zn(II) complexes of 6‐bromopicolinic acid as a potential optical material: Synthesis, spectral characterizations, linear, and nonlinear optical properties and density functional theory calculations

Contact Info

Product

Resources

About

Low-temperature grown wurtzite In_xGa_1−xN thin films via hollow cathode plasma-assisted atomic layer deposition