Role of pH of precursor solution in taming the material properties of spray pyrolysed SnS thin films

Sajeesh, T. H.; Jinesh, K. B.; Kartha, C. Sudha; Vijayakumar, K. P.

doi:10.1016/j.apsusc.2012.03.121

Cited by 36 publications

(11 citation statements)

References 26 publications

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“…Figure 3a shows the samples prepared at 0.1-Pa formed polycrystalline needles. This type of formation was also observed by Sajeesh [22] for SnS thin films prepared by a chemical spray pyrolysis technique. As shown in figure 3b, SEM characterization of the film deposited at 0.15 Pa pressure revealed petal-shaped particles containing no pores and voids [30].…”

Section: Surface Analysissupporting

confidence: 79%

“…Similarly, the grain size is also controlled by the early nucleation of the island which depends on the pressure rate. Therefore, on optimal carrier gas pressure might be useful for the formation of nuclei or the amalgamation of large number of nuclei to form large grain size [22].…”

Section: Structural Studiesmentioning

confidence: 99%

“…This decrease of crystallite size with pressure increase is also witnessed by XRD studies. The microstrain (ε) of the SnS film was estimated using the below equation [22]:…”

Section: Structural Studiesmentioning

confidence: 99%

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Effect of carrier gas pressure on structural, optical and photovoltaic properties of tin sulphide thin films prepared by nebulizer spray pyrolysis method

Arulanantham¹,

Valanarasu²,

Jeyadheepan

et al. 2019

Bull Mater Sci

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Tin sulphide (SnS) thin films deposited using nebulizer spray pyrolysis technique by changing pressure (0.1, 0.15, 0.2 and 0.25 Pascal) at 350 • C and their characterization are reported. The influence of carrier gas pressure on structural, morphological, optical and electrical properties of the film are determined using X-ray diffraction (XRD), energy-dispersive X-ray, atomic force microscopy, UV-Vis spectrophotometry and Hall effect measurement. Structural parameters such as pole density, orientation factor, crystallite size, micro strain and dislocation density were analysed using XRD data. The scanning electron microscopy studies display superior morphology and surface roughness of the films which were found to increase with pressure. Optical studies on the films revealed a variation in band gap from 1.78 to 1.66 eV for were the raise of pressure from 0.1 to 0.2 Pa. A single strong emission peak at about 825 nm is observed in photoluminescence spectra with enhanced intensity which may be attributed to near band edge emission. Grown SnS thin film exhibits p-type conductivity, which was confirmed from the Hall effect measurement. The low resistivity and higher carrier concentration are found to be 0.235 cm and 5.04 × 10 18 cm −3 , respectively. These properties were then correlated with the deposition parameters. Furthermore, to study the photovoltaic properties of SnS thin films, a heterojunction solar cell FTO/n-CdS/p-SnS/Al was fabricated showing conversion efficiency of 0.16%.

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Section: Surface Analysissupporting

confidence: 79%

Section: Structural Studiesmentioning

confidence: 99%

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Effect of carrier gas pressure on structural, optical and photovoltaic properties of tin sulphide thin films prepared by nebulizer spray pyrolysis method

Arulanantham¹,

Valanarasu²,

Jeyadheepan

et al. 2019

Bull Mater Sci

View full text Add to dashboard Cite

show abstract

“…Yue and co-workers applied a metal catalyst to grow SnS nanowires via vapor-liquid-solid (VLS) approach, which were grown in a chemical vapor deposition setup [6]. Chemical spray pyrolysis technique has been used to deposit SnS thin film on a substrate [7]. In addition, electrodeposition method has been applied to deposit SnS thin film on ITO substrate [8].…”

Section: Introductionmentioning

confidence: 99%

Highly efficient photo-degradation of methyl blue and band gap shift of SnS nanoparticles under different sonication frequencies

Jamali‐Sheini

Yousefi

Bakr

et al. 2015

Materials Science in Semiconductor Processing

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“…Also, it has high chemical and environmental stability and involves earth abundant elements. Many deposition methods have been reported for the growth of SnS films in the literature [8][9][10][11][12][13][14][15]. However, the development of high quality SnS films by CBD is one of the difficult tasks in the fabrication of SnS based photovoltaic devices and optoelectronic devices.…”

Section: Introductionmentioning

confidence: 99%

Properties of Tin Monosulphide Films Grown by Chemical Bath Deposition

Gedi

Reddy

2013

Conference Papers in Energy

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Tin monosulphide (SnS) films have been successfully grown by a simple and low-cost wet chemical process, chemical bath deposition (CBD), using tin chloride and thioacetamide as precursors and tartaric acid as complexing agent. The layers were grown on glass substrate at different bath temperatures (Tb) that varied in the range 50–70°C. The energy dispersive X-ray analysis (EDAX) studies showed that all the grown films were nearly stoichiometric. The X-ray diffraction analysis indicated that the films had an intense peak at 31.6° that corresponds to the (111) plane of SnS and exhibited orthorhombic crystal structure. The intensity of (111) plane increases with the increase in bath temperature and became sharp atTb=70°C, where the other crystal planes got suppressed, this indicates better crystallinity of the layers grown at this temperature. No other secondary phases of tin sulphide were observed. The structural parameters such as lattice constants and crystallite size were also calculated. The optical studies revealed that the layers had high optical absorption coefficient (>104 cm−1). The energy band gap was found to be allowed and direct and varied between 1.30 eV and 1.35 eV. The band gap decreased with the rise in bath temperature. The refractive index and the extinction coefficient were also evaluated. The details of these results will be presented and discussed.

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Role of pH of precursor solution in taming the material properties of spray pyrolysed SnS thin films

Cited by 36 publications

References 26 publications

Effect of carrier gas pressure on structural, optical and photovoltaic properties of tin sulphide thin films prepared by nebulizer spray pyrolysis method

Effect of carrier gas pressure on structural, optical and photovoltaic properties of tin sulphide thin films prepared by nebulizer spray pyrolysis method

Highly efficient photo-degradation of methyl blue and band gap shift of SnS nanoparticles under different sonication frequencies

Properties of Tin Monosulphide Films Grown by Chemical Bath Deposition

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