Effect of pH on the properties of ZnS thin films grown by chemical bath deposition

Nasr, Tarek Ben; Kamoun, N.; Kanzari, M.; Bennaceur, R.

doi:10.1016/j.tsf.2005.11.030

Cited by 126 publications

(69 citation statements)

References 20 publications

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“…Among them, CBD is well known as a prevalent lowtemperature aqueous technique for depositing large area of semiconductor thin films, the simplest and the most economical one [15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Al content on physical properties of ZnS thin films prepared by chemical bath deposition

Jrad

Nasr

Turki-Kamoun

2015

J Mater Sci: Mater Electron

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In this work we report the effect of aluminum on the physical properties of Al-doped ZnS thin films. Our samples have been synthesized by chemical bath deposition from aqueous solutions (Sahraei and Darafarin in Spectrochim Acta A Mol Biomol Spectrosc 149:941-948, 2015). X-ray diffraction analysis revealed that the films are monocrystalline and showed (111) preferred orientation for all the doping concentration. Doping ZnS thin films shows significant changes in the transmittance characteristics in the visible range. The refractive index dispersion and extinction coefficients are adequately described by the Wemple-DiDomenico model. The value of oscillator energy E 0 , dispersion energy E d , the high-frequency dielectric constant e ? and ratio of the carrier concentration to the effective mass N/m* were estimated according to the models of Wemple-DiDomenico and Spitzer-Fan. Photoluminescence behavior of Al-doped ZnS thin films was also studied.

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“…Among them, CBD is well known as a prevalent lowtemperature aqueous technique for depositing large area of semiconductor thin films, the simplest and the most economical one [15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Al content on physical properties of ZnS thin films prepared by chemical bath deposition

Jrad

Nasr

Turki-Kamoun

2015

J Mater Sci: Mater Electron

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“…However, most studies have attentive on the structure of QDs using different pH values. The pH effect is an essential effect on the physical presence of the QDs, as well as the chemical, optical and morphological properties of the quantum dots materials [8,9].…”

Section: Kadim and Salehmentioning

confidence: 99%

Morphological and Optical Properties of CdS Quantum Dots Synthesized with different pH values

2017

ijs

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Quantum dots (QDs) of cadmium sulfide (CdS) was prepared by chemical reaction method with different potential of hydrogen (pH) values. The morphological and optical measurements of cadmium sulfide QDs were considered by atomic force microscopy (AFM), ultraviolet-visible (UV-VIS.) and photoluminescence (PL) spectrometer respectively. The energy gap (Eg) was calculated from photoluminescence spectra were found to be about 2.7, 2.6 and 2.5 eV at pH values 8, 10 and 12 respectively for CdS QDs. The decreasing of energy gaps is rises from the effect the pH solution increases, which in turn leads to the shifted of the PL spectrum toward red shifted, which creates the energy bands at surface states are shallow bands. Fabrication of EL-device from CdS QDs with pH=8 was effective in efficient white light generation and intensity.

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“…Zinc sulfide (ZnS) is an important II -VI semiconducting material with a wide direct band gap of 3.65 eV in the bulk [1][2][3][4][5]. This new class of materials has not only provided many unique opportunities but also exhibited novel optical and transport properties, which are potentially useful for technological applications.…”

Section: Introductionmentioning

confidence: 99%

“…This new class of materials has not only provided many unique opportunities but also exhibited novel optical and transport properties, which are potentially useful for technological applications. These materials have potential application in optoelectronic devices, such as blue light emitting diodes, electroluminescent devices and photovoltaic cells [1][2][3] and more recently as n-type nonreflecting window materials in heterojunction solar cells. The efficiency of heterojunction solar cells depend largely on the interfacial properties between absorber and buffer layers.…”

Section: Introductionmentioning

confidence: 99%

Nano-ZnS thin films for solar cell

Jafarov¹,

Nasirov²,

Jahangirova³

2015

Nanosist.: fiz. him. mat.

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In this paper, we report the effect of deposition time on the properties of zinc sulfide thin films. The ZnS thin films have been grown on amorphous glass substrates and at various deposition periods ranging from 30 to 120 min by chemical bath deposition technique. Other parameters, such as reactant concentration, solution pH, and bath temperature were kept constant for the all depositions. Morphological characterizations of the surface were studied using the atomic force microscopy (AFM). The AFM images confirmed that the grain size of ZnS increased with increased deposition time. Average diameter of nanoparticles was between 60 and 90 nm, while the roughness ranged from 6 to 11 nm. Optical properties, which were determined from UV-VIS spectrophotometry, were obtained by analyzing the measured absorbance and transmittance spectrum. The zinc sulfide thin films show high transmittance in the visible region and the ZnS band gap value was estimated to be in range of 3.99 -4.05 eV.

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Effect of pH on the properties of ZnS thin films grown by chemical bath deposition

Cited by 126 publications

References 20 publications

Effects of Al content on physical properties of ZnS thin films prepared by chemical bath deposition

Effects of Al content on physical properties of ZnS thin films prepared by chemical bath deposition

Morphological and Optical Properties of CdS Quantum Dots Synthesized with different pH values

Nano-ZnS thin films for solar cell

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