New window layer of Cu2CdSn3S8 for thin film solar cells

AlKhalifah, M.S.; Radaf, I.M. El; El-Bana, M.S.

doi:10.1016/j.jallcom.2019.152169

Cited by 54 publications

(11 citation statements)

References 42 publications

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“…[7][8][9] In addition to the above, the majority of the combinations of I-II-IV-VI materials are excellent absorbers for electromagnetic waves, so they are commonly used in solar cells as absorbing materials. [10][11][12] The chalcogenide materials, compounds, and thin films are among the extremely popular kinds of non-crystalline substances. [11][12][13][14] In contrast, Ge-Se binary are from the most common amorphous chalcogenides.…”

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confidence: 99%

Optical Characteristics of Thermally Evaporated Thin a-(Cu₂ZnGe)_50−xSe_50+x Films

El-Denglawey

Aly

Dahshan

et al. 2022

ECS J. Solid State Sci. Technol.

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The optical characteristics of a-(Cu2ZnGe)50-xSe50+x, CZGSe, (0≤x≤20 at.wt.%) films were studied. The amorphous nature of the films was affirmed via X-ray diffractograms. Energy-dispersive X-ray spectroscopy confirmed matching between selected compositional element percentages and those measured for all films. Many optical properties and parameters of CZGSe films were studied using UV-Vis-INR spectroscopic transmission and reflection measurements. The envelope methods have been successfully applied on the measured transmission spectra according to the Swanepoel technique, along with reflection spectra in accordance with the Minkov method. Obtained results based on the Swanepoel analysis are in excellent agreement with those inferred from the Minkov method. A clear blueshift of the absorption edge was observed from 854 to 720 nm, in accordance with the increasing optical bandgap energy values from 1.456 to 1.722 eV, as Se-content increases from 50 to 70 at.wt.%. The electronic transitions of (Cu2ZnGe)50-xSe50+x films arose from allowed indirect transitions. The observed energy gap increase was interpreted according to the Mott and Davies model. The absorption coefficient values have been estimated and are found to be larger than10-4cm-1. All discussed parameters strongly depend on the Se-concentration. The bonding strength between the elements of samples strongly affects the optical properties.

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confidence: 99%

Optical Characteristics of Thermally Evaporated Thin a-(Cu₂ZnGe)_50−xSe_50+x Films

El-Denglawey

Aly

Dahshan

et al. 2022

ECS J. Solid State Sci. Technol.

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“…At longer values of wavelengths the dependence of n 2 on 2 is linear, which can be extrapolated to zero wavelength (λ 2 =0) to calculate the high-frequency dielectric constant L and the slope of this linear part can be used to evaluate the value of N∕m * . The plasma frequency ω p can calculated as following based on the Drude model 40,48 : 8 Reflective index, n for as-deposited and annealed thin films as a function of wavelength.…”

Section: Optical Propertiesmentioning

confidence: 99%

Structural and Optical Properties of Nanocrystalline 3-(2-Benzothiazolyl)-7-(diethylamino) Coumarin (C6) Thin Films for Optoelectronic Application

Ebied

Dongol

Elhaes

et al. 2022

J. Electron. Mater.

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In the current work, the structural and optical properties of thermally evaporated 3-(2-Benzothiazolyl)-7-(diethylamino) coumarin [Coumarin 6 (C6)] thin films on a pre-cleaned quartz substrate were studied as a function of the annealing temperature. The influence of annealing on the structural, morphological, and molecular structures was investigated by x-ray diffraction (XRD), atomic force microscopy (AFM), and Fourier transform infrared (FTIR) spectroscopy, respectively. The XRD and AFM results confirmed that the as-deposited and annealed films have nanostructural features (30.96–45.34 nm). Also, the increase in roughness of the C6 thin film surface resulted from particle agglomeration and coalescence. Optical constants of C6 thin films were derived from the transmittance T(λ) and reflectance, R(λ) measurements in the spectral range of 200–2500 nm. Analysis of the optical absorption coefficient data indicates that the type of electronic transition in these films is an indirect allowed transition. The estimated optical band gap was decreased from 2.12 eV to 2.01 eV as the annealing temperature was increased. Dispersion and dielectric parameters were determined as functions of the annealing temperature. Lastly, nonlinear optical parameters such as the third-order nonlinear susceptibility, χ(3) and nonlinear refractive index, n(2) were estimated and influenced by annealing temperature. The optical properties of C6 thin films were showed that C6 thin films would be used in a wide range of photonic applications Graphical Abstract

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“…On the other side, the values of the lattice dielectric constant and the ratio of an optical free carrier concentration to effective mass (𝑁 𝑜𝑝𝑡 /𝑚 * ) can be evaluated according to this equation (AlKhalifah et al 2020;El-Bana and Fouad 2017):…”

Section: Optoelectrical Parametersmentioning

confidence: 99%

Structural and optical studies of the novel BiSbS3 thin films prepared by chemical bath deposition technique

Radaf

Al-Zahrani

2022

Physica B: Condensed Matter

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New window layer of Cu2CdSn3S8 for thin film solar cells

Cited by 54 publications

References 42 publications

Optical Characteristics of Thermally Evaporated Thin a-(Cu₂ZnGe)_50−xSe_50+x Films

Optical Characteristics of Thermally Evaporated Thin a-(Cu₂ZnGe)_50−xSe_50+x Films

Structural and Optical Properties of Nanocrystalline 3-(2-Benzothiazolyl)-7-(diethylamino) Coumarin (C6) Thin Films for Optoelectronic Application

Structural and optical studies of the novel BiSbS3 thin films prepared by chemical bath deposition technique

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New window layer of Cu2CdSn3S8 for thin film solar cells

Cited by 54 publications

References 42 publications

Optical Characteristics of Thermally Evaporated Thin a-(Cu2ZnGe)50−xSe50+x Films

Optical Characteristics of Thermally Evaporated Thin a-(Cu2ZnGe)50−xSe50+x Films

Structural and Optical Properties of Nanocrystalline 3-(2-Benzothiazolyl)-7-(diethylamino) Coumarin (C6) Thin Films for Optoelectronic Application

Structural and optical studies of the novel BiSbS3 thin films prepared by chemical bath deposition technique

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Product

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Optical Characteristics of Thermally Evaporated Thin a-(Cu₂ZnGe)_50−xSe_50+x Films

Optical Characteristics of Thermally Evaporated Thin a-(Cu₂ZnGe)_50−xSe_50+x Films