Structure and optical properties of CuAlS_2 thin films prepared via chemical bath deposition

Alwan, Tariq J.; Jabbar, Mushtak A.

doi:10.3906/fiz-1007-14

Cited by 4 publications

(3 citation statements)

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“…The amorphous structure of all prepared thin films was observed, where no peaks in all films. This behaviour has been mentioned by other researchers [23], [24]. The amorphous nature of deposited films may be due to the low thickness, nanoparticles, which have a small grain size, and the amorphous of glass substrate, which cause weakness in the intensity of X-ray diffraction patterns [25].…”

Section: X-ray Diffraction Analysismentioning

confidence: 73%

“…The Triethanolamine (TEA) represents one of the most types of complex agent which have been used to prepare CuAlS 2 thin films by many researches. Where, Tariq J. et al, prepared CuAlS 2 thin films by CBD technique on glass substrates, from aqueous solutions with Triethanolamine (TEA) as a complex agent, structural properties showed all films were amorphous as deposited and annealing [23]. S.M.…”

Section: Introductionmentioning

confidence: 99%

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Effect of complex agent concentration on the structural and morphological properties of CuAlS2 thin films prepared by chemical bath deposition technique

Taher¹,

Ahmed²

2021

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CuAlS2 thin films have been prepared on glass substrates by chemical bath deposition (CBD) technique at a substrate temperature (Ts) 75C, pH value 10.5, and fixed deposition time 40 minutes. In this study effect of molar concentrations (0.03, 0.05, and 0.06 M) of complex agent Na2EDTA on structural, morphological, and topological properties of deposit thin films were studied by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) with cross section, and atomic force microscopy (AFM), respectively. The result showed that all prepared films were amorphous structures. The cross section analysis showed a good adhesion between prepared films and glass substrates, average thickness of films was affected by concentration of complex agent, where was low at 0.03 and 0.06 M, while was high at 0.05 M. The prepared films showed homogenous and uniform spherical nanoparticles with average grain size (64 to 79 nm) increased with increasing complex agent concentration. AFM images showed that the prepared films at 0.05 and 0.06 M had the same structures as conical and spherical shapes with the homogenous distribution on the surface of the films compared with that at 0.03 M. Also, the surface roughness, and root mean square (rms) roughness were varied in the range (0.33 to 1.74 nm) and (0.44 to 2.34 nm), respectively, where the less roughness were found at 0.05 M complex agent. The prepared films at 0.05 M complex agent showed the best properties which can be useful for many applications in optoelectronics devices.

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Section: X-ray Diffraction Analysismentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Effect of complex agent concentration on the structural and morphological properties of CuAlS2 thin films prepared by chemical bath deposition technique

Taher¹,

Ahmed²

2021

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“…[1−6] Among the chalcopyrite-type semiconductors, the ternary compound CuAlS 2 has the largest band gap of 3.46 eV, [2,3] and has been studied for several decades as a promising candidate for lightemitting and laser diodes operating in a short wavelength region. [2] Several experimental studies have been carried out on the structural and thermo-physical properties of CuAlS 2 by studying the fabrication method effect in the optical properties by varying the annealing temperature as the work released by Alwan et al, [7] where they extract the optical constants (optical energy gap, refractive index 𝑛, absorption coefficient 𝛼, and extinction coefficient 𝑘) of CuAlS 2 thin films by simple and straight-forward calculations using the experimental results of the transmission and absorption spectra. Zhao et al [8] showed that the Mndoping in CuAlS 2 at III sites provides holes and stabilizes the ferromagnetic coupling between Mn ions.…”

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confidence: 99%

Thermal and Structural Study of Mono- and Multi-Layered Thin Films Composed of CuAlS ₂ Chalcogenide

Ghrib

Brini

Al-Otaibi

et al. 2013

Chinese Phys. Lett.

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Thin films constituted of CuAlS2 nanoparticles deposited with various deposition velocities in single and multilayers onto silicon Si(111) substrates by thermal evaporation have been studied by lifting their structural and thermal properties. Thermal properties of Si(111) and Si(111)/CuAlS2 structures are determined by using the photothermal deflection technique by comparing experimental and theoretical signals. We succeed in extracting the thermal conductivity, the thermal diffusivity, and the electron free mean path of these deposited chalcogenide layers. For the multilayers, the obtained values of the thermal conductivity are in good agreement with the theoretical data.

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Influence of Cr2O3 nanoparticles on the physical properties of polyvinyl alcohol

Hassen

Sayed

Morsi

et al. 2012

Journal of Applied Physics

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Reactive-ion-etched graphene nanoribbons on a hexagonal boron nitride substrate Appl. Phys. Lett. 101, 203103 (2012) Silicon nanocrystals prepared by plasma enhanced chemical vapor deposition: Importance of parasitic oxidation for third generation photovoltaic applications Appl. Phys. Lett. 101, 193103 (2012) A little ribbing: Flux starvation engineering for rippled indium tin oxide nanotree branches Appl. Phys. Lett. 101, 193101 (2012) Phase constitution and interface structure of nano-sized Ag-Cu/AlN multilayers: Experiment and ab initio modeling Appl.Nano-sized chromium oxide (Cr 2 O 3 ) was synthesized by sol-gel method and mixed with polyvinyl alcohol (PVA) to produce nanocomposite films. Scanning electron microscopy (SEM) was used to observe the morphology and dispersion of Cr 2 O 3 on the surface of the PVA films. X-ray diffraction (XRD) was performed on nano-sized Cr 2 O 3 , pure PVA, and Cr 2 O 3 /PVA composites. Based on the results of both XRD and high-resolution transmission electron microscopy (HR-TEM), the average particle size of the Cr 2 O 3 was % 46 nm. Differential scanning calorimetry (DSC) showed that the thermal stability and degree of crystallinity of the PVA were reinforced by the addition of Cr 2 O 3 nanoparticles. The absorbance and extinction coefficients of the composites were studied in the UV-vis range and compared with those of pure PVA. The optical energy band gap, E g , was calculated. Dielectric constant, e 0 , dielectric loss modulus, M 00 , and ac conductivity, r ac , of all samples were measured within temperature and frequency ranges of 300-468 K and 10 kHz-2 MHz, respectively. According to the frequency and temperature dependence of the dielectric loss modulus, M 00 , the observed a-relaxation peak was due to the micro-Brownian motion of the polymer main chains. The behavior of r ac (f) for the composite films indicated that the conduction mechanism was correlated barrier hopping (CBH). The results of this work were discussed and compared with those of previous studies of PVA composites. V C 2012 American Institute of Physics.

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Structure and optical properties of CuAlS_2 thin films prepared via chemical bath deposition

Cited by 4 publications

References 3 publications

Effect of complex agent concentration on the structural and morphological properties of CuAlS2 thin films prepared by chemical bath deposition technique

Effect of complex agent concentration on the structural and morphological properties of CuAlS2 thin films prepared by chemical bath deposition technique

Thermal and Structural Study of Mono- and Multi-Layered Thin Films Composed of CuAlS ₂ Chalcogenide

Influence of Cr2O3 nanoparticles on the physical properties of polyvinyl alcohol

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Structure and optical properties of CuAlS_2 thin films prepared via chemical bath deposition

Cited by 4 publications

References 3 publications

Effect of complex agent concentration on the structural and morphological properties of CuAlS2 thin films prepared by chemical bath deposition technique

Effect of complex agent concentration on the structural and morphological properties of CuAlS2 thin films prepared by chemical bath deposition technique

Thermal and Structural Study of Mono- and Multi-Layered Thin Films Composed of CuAlS 2 Chalcogenide

Influence of Cr2O3 nanoparticles on the physical properties of polyvinyl alcohol

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Thermal and Structural Study of Mono- and Multi-Layered Thin Films Composed of CuAlS ₂ Chalcogenide