Structural and optical properties of CdS:Sn thin films prepared by chemical spray pyrolysis method

Ghdeeb, Nadia Jasim

doi:10.30723/ijp.v14i29.234

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…For CdS, the peaks are identical, this leads to the conclusion that doped CdS may be classified into two types: substitution and interstitial. In this case, some ions are replaced by Cd + with a Sn + ion based on radius Cd,Sn((0.9,0.73,))Å 18,19 . The nanoparticles' average grain size at half maximum breadth, the entire width (FWHM) width Half of the wave height are calculated, then two vertical lines on the x-axis 2θ were projected from the beginning and end of the wave's mid-width, then (θ2-θ1), grain size, and 2 Ө of pure nanoparticles were calculated.…”

Section: Results and Discussion: Xrdmentioning

confidence: 99%

Green synthesis of CdS:Sn NPs by Starch as a Covering Agent and Studying its Physical Properties

Yaaqoub

Abbas²

2023

Baghdad Sci.J

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The aim of this research is to employ starch as a stabilizing and reducing agent in the production of CdS nanoparticles with less environmental risk, easy scaling, stability, economical feasibility, and suitability for large-scale production. Nanoparticles of CdS have been successfully produced by employing starch as a reducing agent in a simple green synthesis technique and then doped with Sn in certain proportions (1%, 2%, 3%, 4%, and 5%).According to the XRD data, the samples were crystallized in a hexagonal pattern, because the average crystal size of pure CdS is 5.6nm and fluctuates in response to the changes in doping concentration 1, 2, 3, 4, 5 %wt Sn, to become 4.8, 3.9, 11.5, 13.1, 9.3 nm respectively. An increase in crystalline size has been noticed in the doped CdS than in the pure CdS. The particle size is within the range of 24-103 nm, according to SEM data from pure CdS and of the doped with Sn particles. The band gap's energy values, according to UV-Vis reflection spectroscopy were 3.06,2.61 ,2.63, 2.63, 2.66,2.69 eV for pure and doped with Sn 1%, 2%, 3%, 4%, 5% respectively. The grain size and roughness rate of pure CdS materials and doped with Sn are shown in AFM results 2.16,2.39,10.07,11.33, 12.47,18.56 nm and average diameter is 30.15, 11.71, 66.06, 48.27,82.011, 80.35 nm for pure and doped with tin 1%, 2%, 3%, 4%, 5% respectively.

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Section: Results and Discussion: Xrdmentioning

confidence: 99%

Green synthesis of CdS:Sn NPs by Starch as a Covering Agent and Studying its Physical Properties

Yaaqoub

Abbas²

2023

Baghdad Sci.J

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“…However, it has been employed in optical and electronic applications such as a tunnel junction barrier [23], selectively absorbing films for solar energy conversion, electrode material for electro chromic windows, solar energy shielding films for windows, and infrared (IR)-transmitting coatings, also in industrial applications such as in catalysis and solar thermal energy collectors. Furthermore, 𝐶𝑟 2 𝑂 3 can be an either p-type or n-type semiconductor depending on its growth conditions.…”

Section: Chromium Oxide (𝑪𝒓 𝟐 𝑶 𝟑 )mentioning

confidence: 99%

Factors influencing the microwave propagation performance of different types of materials

Alwan¹

2021

TURCOMAT

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This paper focuses on studying and comparing specific various types of materials which are Silica glass ( ), , Titanium oxide ( ), Graphene ( ), Silicon ( ), Gallium arsenide ( ), and Chromium oxide ( ). It deals with single layer of each previous material in dielectric slab waveguide. Moreover, it studies and compares the effects of a microwave frequency ( ) of the applied electromagnetic waves on TE-modes under assumption of using a constant value of materials thicknesses. It was clearly shown that waveguide parameters of different materials are different depending on its structure and its refractive index. Results and discussion section demonstrates overall comparing among these seven different materials.

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“…The plot of absorbance (A) and transmittance (T%) as a function of wavelength for all the film deposited on glass substrate with 250 nm thickness are depicted in figure (6) a and figure (6) b respectively. The transmittance spectrum of CdS thin film show that the film have high transmittace may be arrive to 80% at wavelength larger than 500 nm which related to the band edge absorption of CdS at this wavelength.…”

Section: Optical Propertiesmentioning

confidence: 99%

“…Cadmium sulphide CdS thin film is one of the II-VI compound semiconductors [2], it exists in the form of cubic or hexagonal in structure. Hexagonal is a yellowish and can be classified as the only real ore of cadmium [3], it highly doped n -type semiconductor due to the intrinsic defects with low electrical resistivity ranging from10 −3 to 10 8 Ω cm [4], wide direct energy gap (2.42 eV at room temperature) so that the blue region of the spectrum is absorbed by the crystal with large absorption coefficient of 4×10 4 cm −1 [5,6], high optical transparency down to wavelengths of around 515 nm. In particular, CdS have many applications in solid -state solar cells, green laser [7], light emitting diodes [8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Nickel Doped Cadmium Sulfide Nanostructure Thin Films via Spray Pyrolysis Method

Jameel

Rashed

2021

KEM

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Pure and nickel-doped cadmium sulphide (NixCd1-xS where x= 2.5%, 5%, 7.5%) nanostructure thin films were successfully prepared by spray pyrolysis method on glass substrate at 350 °C. The films characterized using X-ray crystallography diffractmeter, Scanning Electron Microscope, Atomic Force Microscope and Uv-visible analysis in order to explore the properties of thin film. Structural studies revealed that the deposited films exhibit hexagonal structure with strong intensity at (002) plane. Structural parameters such as crystallite size, strain and dislocation density were calculated for films with different doping concentration. AFM measurements showed that the average diameter increased with increasing Ni doping, where surface roughness and root mean sequre decreased with increasing Ni doping, SEM images show that thin film have been grown and converted into nanowire with increasing of Ni content.Finally, Uv-visible analysis show that the optical band gap of CdS decreased from 2.44 to 2.38 eV with increasing of Ni doping concentrations.

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Structural and optical properties of CdS:Sn thin films prepared by chemical spray pyrolysis method

Cited by 3 publications

References 10 publications

Green synthesis of CdS:Sn NPs by Starch as a Covering Agent and Studying its Physical Properties

Green synthesis of CdS:Sn NPs by Starch as a Covering Agent and Studying its Physical Properties

Factors influencing the microwave propagation performance of different types of materials

Preparation and Characterization of Nickel Doped Cadmium Sulfide Nanostructure Thin Films via Spray Pyrolysis Method

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