Investigations on structural, vibrational, morphological and optical properties of CdS and CdS/Co films by ultrasonic spray pyrolysis

Aksay, Sabiha; Polat, Mizrap; Özer, Tülay; Köse, S.; Gürbüz, G.

doi:10.1016/j.apsusc.2011.06.142

Cited by 46 publications

(16 citation statements)

References 40 publications

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“…And this spectra, the second overtone (2LO) mode were also observed at 601 cm -1 . The two Raman active modes are characteristics of CdS films confirming the hexagonal wurtzite structure corresponds with the literature [5,12,13,21]. It is shown that this Figure, there is also a shift in peak position and a decrease in peak intensity.…”

Section: Vibrational Properties Of the Cds Filmssupporting

confidence: 88%

“…Particularly in recent years, spintronic devices such as spin-valve transistors, ultrafast optical switches and optical isolators have stimulated great passions of many researchers for introducing room temperature ferromagnetism in CdS materials. Cadmium sulfide films with good structural, vibrational and optical qualities have been reported and in these reports, many techniques such as sol-gel [5], radio frequency sputtering [6], thermal evaporation [7], chemical bath deposition (CBD) [8][9][10] and ultrasonic spray pyrolysis (USP) [1,[11][12][13] have been used. From all of these techniques, USP is a cheaper and an easier way.…”

Section: Introductionmentioning

confidence: 99%

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Xrd, Optical and Vibrational Properties of Annealed Cadmium Sulfide Films

Aksay¹

2018

Anadolu University Journal of Science and Technology-a Applied Sciences and Engineering

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Cadmium sulfide (CdS) films have been formed using an ultrasonic spray pyrolysis method. These films were annealed at a temperature range of 200-500 o C in air for 5 hours. To investigate the effects of annealing on the vibrational, structural, optical and morphological properties of cadmium sulfide films, X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy (UV-vis) and atomic force microscopy (AFM) were used, respectively. The XRD spectra indicated that the films have polycrystalline hexagonal nature. According to XRD results, increase in the annealing temperature causes an increase in crystallite size. The optical band gap of the CdS films have been calculated at different annealing temperatures and are found to be in the range of 2.40-2.44 eV. Raman results exhibited two peaks attributed to the 1LO (300cm-1) and 2LO (601cm-1) modes of hexagonal CdS. The chemical bonding has been analyzed by FTIR spectra. The vibrational peaks in the FTIR spectra of the films located at 550-715 and 844-1160 cm-1 correspond to the Cd-S and CO phonon modes, respectively. The morphological properties of all the films were determined by AFM images. The annealing temperature caused a change in color images of films.

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Section: Vibrational Properties Of the Cds Filmssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Xrd, Optical and Vibrational Properties of Annealed Cadmium Sulfide Films

Aksay¹

2018

Anadolu University Journal of Science and Technology-a Applied Sciences and Engineering

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“…The increase in anneal time also facilitated in triggering the process of coalescence. In II-VI semiconductors, re-crystallizations of grains and its growth are reported and well documented [1][2][3][17][18][19][20][21][22][23][24][25][26].…”

Section: Morphological Studymentioning

confidence: 89%

Role of Ag1+ substitutional defects on the electronic and optical properties of n-type CdS thin films semiconductor for sustainable and stable window layer in solar cells technology

et al. 2018

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“…The characteristic vibrational frequencies of undoped and Mo doped CdS thin films are very similar. The absorption band at 570 cm −1 was associated with Cd–S stretching frequency . The band at 1500 cm −1 is assigned to the OH bond stretching vibrations of the presence of water molecules which may be due to the absorption of H 2 O from atmosphere and the band at 1900 cm −1 is due to CN stretching frequency .…”

Section: Resultsmentioning

confidence: 96%

Realizing near stoichiometric and highly transparent CdS:Mo thin films by a low‐cost improved SILAR technique

Ravichandran¹,

Banu²,

Baneto

et al. 2015

Physica Status Solidi (a)

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Undoped and molybdenum doped CdS thin films were deposited on glass substrates using Improved Successive Ionic Layer Adsorption and Reaction (ISILAR) technique. The Mo doping level was varied from 0 to 15 at.% in steps of 5 at.%. The XRD analysis shows that all the films are polycrystalline with cubic structure and grow preferentially along the (111) plane. The crystallite size increases gradually with the increase in Mo doping level up to 10 at.% and decreases with further doping. The morphological studies reveal that Mo doping significantly affects the grains size. Qualitative and quantitative compositional analysis show that near stoichiometric undoped and Mo doped CdS thin films can be achieved using this ISILAR technique. All the films exhibit high transparency in the visible region with an average transmittance in the range of 85–95%.

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Investigations on structural, vibrational, morphological and optical properties of CdS and CdS/Co films by ultrasonic spray pyrolysis

Cited by 46 publications

References 40 publications

Xrd, Optical and Vibrational Properties of Annealed Cadmium Sulfide Films

Xrd, Optical and Vibrational Properties of Annealed Cadmium Sulfide Films

Role of Ag1+ substitutional defects on the electronic and optical properties of n-type CdS thin films semiconductor for sustainable and stable window layer in solar cells technology

Realizing near stoichiometric and highly transparent CdS:Mo thin films by a low‐cost improved SILAR technique

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