Structural and Optical Properties of SnS Thin Films

Hasan, Bushra A.; Shallal, Ikhlas H.

doi:10.12785/jnam/020201

Cited by 39 publications

(11 citation statements)

References 4 publications

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“…The favored location of the particle is due to the circumstance that the growing method is controlled by nucleation. The results are in agreement with the finding of reported researches [13][14][15]. The crystallite size was calculated from Scherer's equation [16] D = 0.9λ / β cosθ (1) where λ is the X-ray wavelength (Å) , β is the full width at half maximum intensity (FWHM) (radian), θ is Bragg's diffraction angle of the XRD peak (degree).…”

Section: Powder Xrd Analysissupporting

confidence: 88%

STRUCTURAL, OPTICAL AND MORPHOLOGICAL INVESTIGATIONS OF Fe-DOPED SnS THIN FILMS

JANAKIRAMAN¹,

TAMILNAYAGAM²,

SUNDARARAJAN³

et al. 2020

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SnS could have novel applications in optoelectronics including solar cell devices, sensors, batteries and also in biomedical sciences. Fe-doped SnS thin films were prepared on glass substrates using chemical spray pyrolysis (CSP) method. Pure and Fe-doped SnS thin films were deposited onto microscopic glass substrates using the spray pyrolysis technique. The precursors of SnCl2·2H2O (0.1 M) and thiourea (0.1 M) were dissolved separately in a solution containing deionised water and isopropyl alcohol in proper ratio. Equal volumes of these two solutions were mixed together and sprayed onto the microscopic glass substrates at a substrate temperature of 450⁰C. Fe was doped with SnS thin films using FeCl3 (5 at.%, 7 at.%, 9 at.%, and 11 at.%) as the dopant source. Structural, optical, vibrational, structural, morphological properties were studied.

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Section: Powder Xrd Analysissupporting

confidence: 88%

STRUCTURAL, OPTICAL AND MORPHOLOGICAL INVESTIGATIONS OF Fe-DOPED SnS THIN FILMS

JANAKIRAMAN¹,

TAMILNAYAGAM²,

SUNDARARAJAN³

et al. 2020

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“…Poor crystallinity of the films may also lead to higher optical band gap. These values of optical band gap is comparable with the reported value for SnS thin films [17,18,19]. (7) and figure (8) show the variation of sensitivity vs. operating temperature at different thickness in the presence of 20 ppm ethanol gas and ammonia gas respectively.…”

Section: Optical Propertiessupporting

confidence: 87%

Effect of Thickness on Structural, Optical and Sensing Properties of SnS Thin Films Prepared by Ultrasonic Nebulizer Method

Hazaa¹,

Shaker²

2018

Int. J. Thin. Fil. Sci. Tec.

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Thin Film of tin sulfide with different thickness (100, 250, 450, 600 ) nm have been prepared on pre-heated glass substrates up to (430 o C) by Ultrasonic Nebulizer Deposition (UND). The effect of thickness on the structural, optical, and gas sensing properties of films has been investigated. The results of the XRD show that the film which deposited with thickness (100 and 250) nm exhibit only SnS phase with (111) orientation, and with thickness (450 and 600) nm crystallized in the mixed phase SnS and Sn 2 S 3 depending upon the films thickness. Atomic force measurement showed the grain size increase with thickness in the range of (76.08 -105.67 nm). The optical properties of the films have been studied over a wavelength (370-1100) nm. The calculated optical energy band gap values were between 1.3 and 2.4 eV, depending on the film thickness and in which phase crystallized. The effect of thickness and operating temperature on performance of the sensor material has been investigated to choice optimum thickness and temperature for each ethanol and ammonia gases. The films with 600 nm thickness showed high response and excellent sensitivity for ethanol and ammonia gases at low temperature (140,110) o C and high temperature (380,240) o C respectively.

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“…Calculated band gaps are in good accordance with the literature. 1,21,25 Band gap values calculated for 4.0% bismuth sulfide coupled SnS/Al 2 O 3 , 8.0% bismuth sulfide coupled SnS/Al 2 O 3 and 12.0% bismuth sulfide coupled SnS/Al 2 O 3 are found to be 1.85, 1.68, and 1.1 eV, respectively, as shown in Fig. 3D-F.…”

Section: Ftir Analysismentioning

confidence: 81%