Optical properties of pulse electrodeposited ZnS films

Murali, K. R.

doi:10.9790/4861-06320914

Cited by 8 publications

(3 citation statements)

References 21 publications

(18 reference statements)

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“…The transmission spectra of all ZnS samples are in good agreement with the work of K. R. Murali in the region from 532 nm to 915 nm. The relation between the calculated refractive indices for the four samples of ZnS thin films deposited on glass substrates using pulsed laser technique with fixed pulse repetition rates and varied pulse energy and were done according to equation (1), and are plotted as a function of wavelengths as shown in figure 8. The refractive index of any material in thin film profile is usually deviates from that of the bulk of the same material [15].…”

Section: Optical Properties Of Znsmentioning

confidence: 99%

“…Zinc Sulphide (ZnS) is a wide gap and direct transition semiconductor that belong to group II-VI semiconductors [1,2]. ZnS thin films are believed to be one of the most promising materials for blue light emitting diodes, and in electroluminescent displays [3].…”

Section: Introductionmentioning

confidence: 99%

“…E. Ma´rquez et al in (2014) fabricated ZnS thin films on glass substrate via thermal evaporation technique and studied their structural and optical properties [10]. In (2014) K. R. Murali deposited ZnS films by the pulse plating technique at different duty cycles in the range of 6 -50% and at a constant current density of 10 mA cm -2 and he studied their Optical constants (refractive index, n, Prepared Using Pulse Laser Technique extinction co-efficient, k, dielectric constant) of the films in the wavelength range 300-1850 nm by using spectrophotometric measurement [1]. In this work four samples of ZnS thin film were fabricated using Q-switched Nd:YAG pulsed laser deposition with the wavelength of 1064 nm, 10 pulses with pulse repetition rate of 2 Hz, the target to substrate distance and angle were fixed to 2 cm and 45 o , respectively.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Pulse Energy on the Optical Properties of ZnS Thin Films Prepared Using Pulse Laser Technique

Haroun¹

2018

AJMP

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In these work four samples of ZnS thin films deposited on glass substrate using pulse laser deposition method with different pulse energies, the effect of the laser pulse energy on the optical properties of the four ZnS thin films fabricated was studied. Q-Switched Nd: YAG laser with the fundamental wavelength 1064 nm, laser Pulse energies of (125, 150, 175, and 200) mj with fixed number of pulses of 20, and pulse repetition rate of 5 Hz were used. The target to the substrate distance and angle were kept fixed. The film thicknesses were measured using FESEM measurement tool. The thickness of the deposited ZnS thin films was found to be linearly dependent on the pulse energy used. The transmission spectra in the tested region (532 to 915) nm were found to be in the range from 0.41 to 0.59% depending on the ZnS thin film thickness, and for each ZnS thin film the transmission spectrum is unique. The refractive indices of all samples were determined; and for each sample and it were found to change with wavelength, the highest refractive index of 5.6 at 915 nm was obtained for the sample of the smallest thickness 0.49 microns. Transmission spectra, absorption coefficients and the refractive indices they were in good agreement with the literature.

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Section: Optical Properties Of Znsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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