Role of copper dopant in two-photon absorption and nonlinear optical properties of sprayed ZnS thin films for optical limiting applications

S, Ganesha Krishna V; Maidur, Shivaraj R.; Patil, P. S.; Mahesha, M.G.

doi:10.1016/j.physleta.2021.127276

Cited by 13 publications

(3 citation statements)

References 13 publications

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“…The transmittance and reflectance of MgO films doped with CdS and ZnS can vary depending on the type and concentration of the dopant. Generally, the addition of dopants to MgO films can affect their optical properties, such as their transmittance and reflectance, Studies have shown that the addition of ZnS to MgO films can decrease their transmittance in the visible region, due to the larger particle size and distribution between the particles [24,25]. On the other hand, the addition of CdS can decrease the transmittance of MgO films, especially at shorter wavelengths, due to the formation of larger particles [26,27].…”

Section: Resultsmentioning

confidence: 99%

Effect of ZnS and CdS on Some Physical Properties of MgO Films

Hassan,

Albanda,

Al-Timimi

2023

East Eur. J. Phys.

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This article reports on the fabrication and characterization of MgO nanostructured films and the effect of ZnS and CdS on their structural, optical, and electrical properties. The MgO, MgO: ZnS, and MgO: CdS thin films were deposited using a Chemical spray pyrolysis technique onto glass substrates at 673 K. The XRD patterns revealed that the MgO thin films had a preferred (111) orientation with a pure cubic crystalline structure, while the ZnS and CdS layers had a hexagonal structure. The FE-SEM images showed that the MgO films had a nanostructured morphology with an average particle size of ~50 nm. The UV-Vis spectroscopy results showed that the addition of ZnS and CdS layers to the MgO films resulted in a shift in the absorption edge towards the visible region of the electromagnetic spectrum, indicating an improvement in their optical properties. These findings suggest that the MgOZnS and MgOCdS films could have potential applications in optoelectronic devices.

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Section: Resultsmentioning

confidence: 99%

Effect of ZnS and CdS on Some Physical Properties of MgO Films

Hassan,

Albanda,

Al-Timimi

2023

East Eur. J. Phys.

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“…The addition of Cu atoms onto ZnS was reported to increase crystallinity, low strain, and hence, the crystal size of CuZnS thin films. However, a decrease in the resistivity of CuZnS films as a result of Cu doping in ZnS films was reported, and metal-like conductivity properties in the electrical analysis were observed [16]. Using the metalorganic chemical vapor deposition (MOCVD) technique at various deposition temperatures, a direct energy gap transition of CZS films was observed from 1.79 to 2.10 eV with a maximum electric conductivity of 7.38 × 10 −2 (Ω/cm) −1 [17].…”

Section: Introductionmentioning

confidence: 99%

Opto-electronic properties of copper-zinc-sulfide thin films grown via metalorganic-chemical vapor deposition technique at different flow rates

et al. 2023

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In this work, copper zinc sulfide (CZS) ternary thin films were prepared from the pyrolysis of a Bis-(morpholinodithiato-s,s’)-Cu-Zn precursor using metal-organic chemical vapor deposition technique maintained at 450 ℃ in ambient nitrogen as the carrier gas. The deposition flow rate was varied to study its effect on the optoelectronic properties of CZS films. The particle-induced X-ray emission technique (PIXE) of the prepared single solid source precursor shows the presence of copper, zinc, and sulfur. The Fourier transform infrared spectrophotometer of the precursor reveals the metal-metal bond attachment to the ligand at a very low wavenumber. The XRD spectra reveal the formation of the hexagonal closed-packed structure of CZS films with a preferred orientation along the [111] direction. The film crystallite size is found to increase from 10.4 to 12.2 nm as the flow rate increases, while the dislocation density and stress decrease as the deposition flow rate increases. The SEM analysis revealed an improvement in the growth rate of the grains as the flow rate increased. The transmittance of the deposited CZS films was found to increase from 58% to 84.2% in the infrared region with an increase in band gap from 3.08 – 3.64 eV as the flow rate increased. The deposited film shows ohmic properties and an increase in conductivity from 0.243 to 0.847 (Ω cm)-1, while the resistivity decreases as the flow rate increases. These observations provide room for the deposited CZS film to serve as a potential material for optoelectronics and window layer solar cell devices.

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“…[7][8][9][10] Besides that, due to Cu element has many different oxidation states, so recently the nature of the green photoluminescence (PL) band still exists two different perspectives, in which they can be characteristic of Cu + ions (3d 10 ) 11,12) or Cu 2+ ions (3d 9 ) or the interstitial atoms. [13][14][15] Therefore, at present, the influence of Cu 2+ on the optical and photocatalytic properties of Cu doped ZnS [16][17][18] and the role of Cu + to p-type conductivity 19,20) in further applications of Cu doped ZnS thin films are still under consideration.…”

Section: Introductionmentioning

confidence: 99%

Energy transfer and luminescence enhancement of Cu²⁺ ions in polyvinyl pyrrolidone caped ZnS:Cu nanoparticles

Thi¹,

Ben²,

Thai³

et al. 2021

Jpn. J. Appl. Phys.

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Cu doped ZnS nanoparticles (ZnS:Cu) were synthesized by the co-precipitation method from Zn(CH3COO)2 0,1 M, Cu(CH3COO)2 0,1 M and Na2S 0,1 M solutions. Then they were coated by polyvinyl pyrrolidone (PVP) with different masses from 0.1 to 0.8 g. The photoluminescence excitation (PLE) spectra of 525 nm green photoluminescence (PL) band using xenon lamp shows the 330 nm peak and prominent peaks at 450, 470, 480 nm. The 330 nm peak is attributed by characterizes of nearshore absorption displacement of the ZnS crystal and the 450, 470, 480 nm peaks are involved in the adsorption displacement of Cu2+ (3d9) ions in the ZnS:Cu nanoparticles. The PVP coating hardly changes the crystal structure, the average crystal size, the morphology, the position of PL and PLE peaks that only increase their intensity. This enhancement is due to the transfer of excitation energy from PVP to Cu2+ ions (3d9) through the –C=O–M2+ (M2+: Zn2+, Cu2+) coordination bonds between the O atoms of the C=O group and ions Zn2+, Cu2+ on the surface of the nanoparticles.

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Role of copper dopant in two-photon absorption and nonlinear optical properties of sprayed ZnS thin films for optical limiting applications

Cited by 13 publications

References 13 publications

Effect of ZnS and CdS on Some Physical Properties of MgO Films

Effect of ZnS and CdS on Some Physical Properties of MgO Films

Opto-electronic properties of copper-zinc-sulfide thin films grown via metalorganic-chemical vapor deposition technique at different flow rates

Energy transfer and luminescence enhancement of Cu²⁺ ions in polyvinyl pyrrolidone caped ZnS:Cu nanoparticles

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Role of copper dopant in two-photon absorption and nonlinear optical properties of sprayed ZnS thin films for optical limiting applications

Cited by 13 publications

References 13 publications

Effect of ZnS and CdS on Some Physical Properties of MgO Films

Effect of ZnS and CdS on Some Physical Properties of MgO Films

Opto-electronic properties of copper-zinc-sulfide thin films grown via metalorganic-chemical vapor deposition technique at different flow rates

Energy transfer and luminescence enhancement of Cu2+ ions in polyvinyl pyrrolidone caped ZnS:Cu nanoparticles

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Energy transfer and luminescence enhancement of Cu²⁺ ions in polyvinyl pyrrolidone caped ZnS:Cu nanoparticles