Rectification of sulphur deficiency defect in CdS based films by introducing a novel modification in the SILAR cyclic process

Ravichandran, K.; Banu, N. Nisha; Selvi, V. Senthamil; Muralidharan, B.; Arun, T.

doi:10.1016/j.jallcom.2016.06.164

Cited by 15 publications

(3 citation statements)

References 51 publications

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“…The ion-by-ion mechanism (heterogeneous reaction) generally leads to uniform, crystalline and compact CdS lms with hexagonal or mixed (hexagonal and cubic) phases, while the cluster-bycluster mechanism (homogeneous reaction), which allows colloidal particle precipitation prior to deposition, usually results in porous, non-uniform and poorly adherent CdS lms. 26,27 Typically, the SILAR process favours the nucleation and growth of CdS lms by adopting the ion-by-ion mechanism in which every step was introduced by Pathan and Lokhande in 2004. 28 When the developed ZnO NRs were immersed in a cationic ethanolic solution, a high concentration of positively charged cadmium ions were attached to ZnO NRs via van der Waals and electrostatic forces, thus resulting in a positive (inner) Helmholtz double layer while the negatively charged counterions (acetate) formed the outer Helmholtz layer.…”

Section: Resultsmentioning

confidence: 99%

Growth-control of hexagonal CdS-decorated ZnO nanorod arrays with low-temperature preheating treatment for improved properties and efficient photoelectrochemical applications

et al. 2023

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Section: Resultsmentioning

confidence: 99%

Growth-control of hexagonal CdS-decorated ZnO nanorod arrays with low-temperature preheating treatment for improved properties and efficient photoelectrochemical applications

et al. 2023

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“…Nano‐particles formation is generally due to ion‐by‐ion deposition or cluster‐by‐cluster deposition [41–44]. Ion‐by‐ion deposition results in well‐formed nano‐wires or nano‐rods.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterisation of cerium sulphide over optical fiber and its gas sensing application

Theoderaj

Jacob

Chitra

2021

Materialwissenschaft Werkst

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In this study, a cladding‐modified optical fiber‐based gas sensor is proposed for detection of carbon dioxide gas. Cerium disulphide (CeS2) is synthesised and coated by chemical bath deposition (CBD) route over the region in which cladding is removed. This synthesised cerium disulphide is characterised by x‐ray diffraction (XRD), photoluminescence spectrum (PL), ultra violet‐visible absorption spectrum, ultra violet ‐visible reflectance and transmittance spectrum, scanning electron microscope images (SEM) and energy dispersive x‐ray spectrum (EDX). The response of the sensor is recorded for different concentrations of test gases (nitrogen dioxide and carbon dioxide) and the sensor's selectivity is compared and analysed. It is observed that cerium disulphide is more sensitive to carbon dioxide compared to nitrogen dioxide.

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“…The PbS is mainly used as an infrared detector in various fields has been used mainly as an infra-red detector in another diverse field [11][12][13][14][15]. On the other hand, the CdS material shows a direct band gap between 2.42 and 2.53 eV [16][17][18][19][20][21][22][23][24][25]. The CdS material was used as a pigment as well as for solar cells optical window; cadmium sulfide is a semiconductor II-VI type which is mainly useful in optoelectronic devices and some researchers reported that it has low conductivity of 10.8 (Ω cm) −1 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Thin Films of Sulfides of Cadmium, Lead and Copper by Chemical Bath Deposition

Hernandez¹,

Castillo²

2017

Thin Film Processes - Artifacts on Surface Phenomena and Technological Facets

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The goal of this chapter is to present three kind of thin films for the materials, done by Chemical Bath Deposition technique, the materials are CdS, PbS and CuS. The characterization has been diversified, but consisting mainly X-ray Diffraction (XRD) giving hexagonal, cubic and amorphous structures of CdS, PbS and CuS respectively. The Raman dispersion let to found the characteristics peaks of vibration, one for the CdS located on 300.7 cm −1 , three for PbS and two more for the CuS. We use X-rays Photoelectron Spectroscopy to formalize the chemical composition analysis, from this analysis we could to proof the high purity of the chemical bath deposition method in the materials preparation. We used UV-Vis Spectroscopy to determine simple optical responses, getting the biggest transmittances of 72% for CdS, 45% for PbS, and 80% for CuS, and direct energy band gaps of 2.47 eV for CdS, 1.78 eV for CuS as ground and with thermic annealing 2.45 eV which is believed result of amorphous to crystalline morphology changes, the indirect bandgap 0.94 eV is measured too. The AFM given information about the surface morphology and roughness, Scanning Electron Microscopy (SEM) micrography shows the polycrystallinity nature of the CuS including the smooth.

show abstract

Rectification of sulphur deficiency defect in CdS based films by introducing a novel modification in the SILAR cyclic process

Cited by 15 publications

References 51 publications

Growth-control of hexagonal CdS-decorated ZnO nanorod arrays with low-temperature preheating treatment for improved properties and efficient photoelectrochemical applications

Growth-control of hexagonal CdS-decorated ZnO nanorod arrays with low-temperature preheating treatment for improved properties and efficient photoelectrochemical applications

Synthesis and characterisation of cerium sulphide over optical fiber and its gas sensing application

Synthesis of Thin Films of Sulfides of Cadmium, Lead and Copper by Chemical Bath Deposition

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