Synthesis and Physical Properties of nanocrystalline CdS Thin Films – Influence of sol Aging Time &amp; Annealing

Rathinamala, I.; Jeyaprakash, P.; Jeyakumaran, N.; Prithivikumaran, N.

doi:10.12785/ijtfst/030306

Cited by 11 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[4][5][6][7][8] and also considered as a window layer material for solar cells application due to its high absorption and photoconductivity in visible region [9]. Being direct band gap semiconductor, CdS is widely used in photoreactors and light emitting devices [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Structural and Optical Studies on Sol-Gel Driven Spin-Coated CdS Thin Films

Aggarwal

Kaushik

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Inorganic wide band gap semiconductors are considered as best for optoelectronic devices such as photovoltaic cells, photodetectors, thin film transistors etc. CdS is a more promising semiconductor due to its direct wide band-gap ∼ 2.42 eV and size dependent optical properties. In the present article, structural and optical properties of spin coated CdS thin films are investigated. CdS thin films are annealed at 400 °C for 60 minutes to improve crystalline quality. X-RAY diffraction pattern reveals (002) diffraction plane of wurtzite CdS. The optical properties are analyzed by UV-Visible-NIR spectroscopy. The optical band-gap of CdS thin films varies from 2.25 eV to 2.47 eV which depends on number of deposited layers and the annealing condition.

show abstract

Section: Introductionmentioning

confidence: 99%

Structural and Optical Studies on Sol-Gel Driven Spin-Coated CdS Thin Films

Aggarwal

Kaushik

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…CdS is one of the most proficient nanomaterials for solar cells [10] and there are numerous applications of this material in the field of optoelectronics, photonics, photovoltaic, and photovoltaics [11]. CdS is also used as a pigment in paints and in engineered plastic for good thermal stability [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Using Different Preparation Methods on the Properties of CdS Nanoparticles

Abbas

Yaaqoub

2022

IJOIR

View full text Add to dashboard Cite

This study aims to prepare cadmium sulfide nanoparticles in two methods, which are the chemical method and the biological method using two types of extracts, green tea, and starch. The prepared nanoparticles were characterized by various techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM), and Energy Dispersive X-ray Spectroscopy (EDX). The synthesis of crystalline CdS nanoparticles was confirmed by various analytical techniques such as X-ray diffraction (XRD) and the pattern reveals cubic and hexagonal structures. The average crystal size for the methods respectively is 11.5, 15.9, and 5.67 nm, which have a spherical shape for nanoparticles CdS by scanning electron microscopy (SEM). The peaks of cadmium and sulfur emerged in the assay (EDX). The energy gap of the CdS has increased than the energy gap of the bulk CdS, the results were 2.63, 2.88, and 3.06 eV, respectively. This is an evidence of obtaining a nano-material for CDS by these two methods.

show abstract

“…Large scale fabrication of CdS nanostructures especially controlled synthesis of high-quality nanostructured CdS thin films through a solution based route at low temperatures still remains a challenging job for material scientists. The Spin coating method [26][27][28] is one of the simplest, cost-effective, eco-friendly and large area thin film deposition technique. The spin coating technique has many advantages such as minimal matter wastage, economical way of large-area fabrication, and no manoeuvre of toxic gases.…”

Section: Introductionmentioning

confidence: 99%

A systematic investigation on structural and optical properties of sol–gel spin coating fabricated CdS nanocrystalline thin films: effect of Ni doping

Sharma

Lalwani

Das

et al. 2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

In the present work, we have successfully fabricated undoped and Ni-doped Nanocrystalline CdS thin film on an ultrasonically cleaned glass substrate employing the Sol-Gel spin coating technique. The structural and spectroscopic properties of the films were investigated using XRD spectra, UV-Vis spectroscopy and photoluminescence spectra respectively. The X-Ray diffraction spectra revealed the polycrystalline nature of films with cubic structure and ( 111) as preferred orientation. The average particle size evaluated by the Debye-Scherrer formula lying in the range 6.65nm to 12.05 nm for the deposited films. According to UV-VIS Spectroscopy, the average transmittance of films in the visible region varies between 70% to 90%. The optical band gap of CdS thin film was evaluated from absorption spectra. The bandgap of the deposited films is in the range of 2.48 eV to 2.70 eV which is higher than that of bulk CdS (2.42eV). This verifies the blue shifting in band edge of CdS Nanocrystalline thin films due to the quantum confinement effect. Photoluminescence spectra of the thin film showed that the fundamental band edge emission peak centred at 485nm also called blue band emission.

show abstract

Synthesis and Physical Properties of nanocrystalline CdS Thin Films – Influence of sol Aging Time & Annealing

Cited by 11 publications

References 0 publications

Structural and Optical Studies on Sol-Gel Driven Spin-Coated CdS Thin Films

Structural and Optical Studies on Sol-Gel Driven Spin-Coated CdS Thin Films

Effect of Using Different Preparation Methods on the Properties of CdS Nanoparticles

A systematic investigation on structural and optical properties of sol–gel spin coating fabricated CdS nanocrystalline thin films: effect of Ni doping

Contact Info

Product

Resources

About