Physical Properties of Nano-crystalline SnS2 Layers Grown by Chemical Bath Deposition

Reddy, K.T. Ramakrishna; Gedi, Sreedevi; Ramya, K; Miles, Robert

doi:10.1016/j.egypro.2012.02.041

Cited by 24 publications

(7 citation statements)

References 13 publications

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“…Since the absorbance spectrum cannot be taken for the film grown on the filter paper, the UV–visible absorbance spectrum of SnS 2 film over glass substrate (G-30) has been measured (Figure f), which shows a gradual increase in the absorption value from 700 nm to UV region. The band gap ( E g ) value as calculated from the Tauc plot (using the equation (α h ν) 2 = A ( h ν – E g )) is 3.05 eV (shown in the inset in Figure f), which is similar to the value reported by Reddy et al and Gedi et al for the SnS 2 nanostructured film.…”

Section: Resultssupporting

confidence: 85%

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS₂ 2D-Nanosheet Array Film

Mahapatra

Basak

2021

ACS Appl. Electron. Mater.

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We breathe in a world where growing electronic wastages are a serious threat to our ecosystem, and therefore biodegradable devices are more in demand. We have unprecedentedly demonstrated broad-band low-intensity photodetection by SnS 2 two-dimensional (2D) nanosheet (NS) array film grown on Whatman filter paper based biodegradable substrate. Phase pure SnS 2 2D NS array film has been obtained using a low-cost facile chemical bath deposition technique as confirmed by X-ray diffractometry, X-ray photoelectron spectroscopy, and field emission scanning electron microscopy. Unprecedentedly, these biodegradable substrates based SnS 2 NS array films can detect lights of wavelengths of 400 and 500 nm with photoresponsivity values of 6.31 and 10.22 mA/W, respectively. Uniquely, the SnS 2 NS array film also detects very low-intensity lights of 43 μW/cm 2 (400 nm) and 42 μW/cm 2 (500 nm) with photoresponsivity values of 15.87 and 20.24 mA/W with detectivity values of 3.04 × 10 10 and 3.88 × 10 10 jones, respectively. Very stable broad-band photoresponse under successive illumination conditions has also been demonstrated. Collated experimental data support a photoresponse mechanism involving defect levels. This filter paper based photoactive SnS 2 2D-NS array film can be applied to fabricate biodegradable low-intensity broad-band photodetector devices.

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Section: Resultssupporting

confidence: 85%

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS₂ 2D-Nanosheet Array Film

Mahapatra

Basak

2021

ACS Appl. Electron. Mater.

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“…The transmittance of S1 and S2 increased with increasing wavelength between 200 and 1000 nm. The sharp fall of transmittance near the absorption edge indicates the existence of a direct energy band gap in the films [23]. Then the transmittance of S1 slightly decreased with an increase in wavelength and the transmittance of S2 is exactly opposite that of S1.…”

Section: Optical Propertiesmentioning

confidence: 96%

Nano-flower and nano-wall SnS₂films fabricated with controllable shape and size by the PECVD method

Cheng

Liu

Wang

et al. 2012

Semicond. Sci. Technol.

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In the present work, SnS 2 films are deposited from solid source materials of S, Na 2 S 2 O 3 • 5H 2 O and SnCl 4 • 5H 2 O by the plasma-enhanced chemical vapor deposition (PECVD) method. Through controlling the deposition parameters, SnS 2 films with nano-flower and nano-wall structure can be deposited without using any additives. By changing the deposition parameters, such as the molar ratio of S/Sn in source material, deposition temperature and the different kinds of sulfur source materials, SnS 2 films with different morphology, building block and chemical composition can be produced. Furthermore, the formation mechanisms of the obtained morphologies have also been studied. It is mainly based on the crystal growth habit and the influence of the concentration of the sulfur radical in the vicinity of the growing surface. Moreover, the optical properties of SnS 2 films have also been discussed. Due to the small size of SnS 2 nanostructures, optical band gaps display the significant blue shift.

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“…SnS2 can be used for various application like, electrical switches, quantum well structure and recording system [12], different rang of physical and chemical methods have been reported to prepare SnS2 such as, chemical vapour deposition [13], spray pyrolysis [14], Chemical bath deposition (CBD) [15], plasma-enhanced chemical vapour deposition (PECVD) [16] and dip deposition [17].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it has a suitable bandgap 2.2 eV to transmit most of the solar radiation to the absorber layer. 11 SnS 2 can be used for various application like, electrical switches, quantum well structure and recording system, 12 different rang of physical and chemical methods have been reported to prepare SnS 2 such as, chemical vapordeposition, 13 spray pyrolysis, 14 Chemical bath deposition (CBD), 15 plasma-enhanced chemical vapordeposition (PECVD) 16 and dip deposition. 17 In this work we report, hydrothermal low-cost method for synthesis of SnS 2 product using common, nontoxic SnCl 4 5H 2 O and thioacetamide as the reactants and 5% acetic acid aqueous solution as the solvent and the influence of Fe content at different (2.5%, 5%, 10%).…”

mentioning

confidence: 99%

Influence of Fe Content in Binary SnS₂ Synthesis by Hydrothermal Technique for Photovoltaic Application

Ullah

Bouich

Ullah

et al. 2019

ECS J. Solid State Sci. Technol.

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Binary thin disulfide (SnS2) and ternary Sn1-x FexS2 (X = Fe (2.5%, 5% and 10%) which has huge potentials in the visible-light rang due to its band gap 2.2-2.6 eV. Herein, SnS2 and Sn1-x FexS2 powders have been synthesize by a fruitful hydrothermal method. The structure, morphology, elemental composition and optical properties of the obtained product were characterized by using X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Electron Dispersive Spectroscopy (EDS) and UV-Vis spectroscopy.It was found that the Fe could be effectively incorporated in the obtained Sn1-xFexS2 compounds. According to XRD analysis, increased concentration of Fe in the Sn1-xFexS2 compounds results in a gradual degradation of the crystallinity. The optical bandgap was found to be 1.52 eV, 2.22 eV, 2.38 eV and 2.48 eV, for the SnS, SnS2, Fe 5% and Fe 10% respectively. Mott-Schottky measurements performed for SnS2 confirm the n-type character of SnS2 samples.

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Physical Properties of Nano-crystalline SnS2 Layers Grown by Chemical Bath Deposition

Cited by 24 publications

References 13 publications

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS₂ 2D-Nanosheet Array Film

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS₂ 2D-Nanosheet Array Film

Nano-flower and nano-wall SnS₂films fabricated with controllable shape and size by the PECVD method

Influence of Fe Content in Binary SnS₂ Synthesis by Hydrothermal Technique for Photovoltaic Application

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Physical Properties of Nano-crystalline SnS2 Layers Grown by Chemical Bath Deposition

Cited by 24 publications

References 13 publications

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS2 2D-Nanosheet Array Film

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS2 2D-Nanosheet Array Film

Nano-flower and nano-wall SnS2films fabricated with controllable shape and size by the PECVD method

Influence of Fe Content in Binary SnS2 Synthesis by Hydrothermal Technique for Photovoltaic Application

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Product

Resources

About

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS₂ 2D-Nanosheet Array Film

Biodegradable Filter Paper Based Broad-Band Photodetection by Chemical Bath Deposited SnS₂ 2D-Nanosheet Array Film

Nano-flower and nano-wall SnS₂films fabricated with controllable shape and size by the PECVD method

Influence of Fe Content in Binary SnS₂ Synthesis by Hydrothermal Technique for Photovoltaic Application