SILAR coated Bi2S3 nanoparticles on vertically aligned ZnO nanorods: Synthesis and characterizations

Nikam, Pratibha R.; Baviskar, Prashant K.; Sali, Jaydeep V.; Gurav, K.V.; Kim, Jin Hee; Sankapal, Babasaheb R.

doi:10.1016/j.ceramint.2015.03.239

Cited by 54 publications

(19 citation statements)

References 23 publications

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“…The E g value of Bi 2 S 3 /ZnO NRAs/ITO decreased from 3.22 eV to 1.90 eV as the cationic concentration was risen from 1 mM to 10 mM. The calculated values agreed with earlier studies [13]. Furthermore, when the cationic precursor concentration increased, it led to the increase in the thickness of thin film.…”

Section: Resultssupporting

confidence: 88%

“…The peak at 575.5 cm −1 is ascribed to O 2 vacancies and the low intensity of this peak indicates its low defect on the ZnO thin film [13]. Meanwhile, the rest of the peaks located at 152 and 236, 480 and 710 cm −1 correspond to Bi 2 S 3 which is in agreement with the Raman peaks as demonstrated by [13,26,28].…”

Section: Resultssupporting

confidence: 79%

“…The two vibration peaks at around 102 and 437.5 cm −1 are associated with E 2 (low) and E 2 (high) phonons vibration modes of ZnO NRAs, respectively [27,28]. The peak at 575.5 cm −1 is ascribed to O 2 vacancies and the low intensity of this peak indicates its low defect on the ZnO thin film [13]. Meanwhile, the rest of the peaks located at 152 and 236, 480 and 710 cm −1 correspond to Bi 2 S 3 which is in agreement with the Raman peaks as demonstrated by [13,26,28].…”

Section: Resultsmentioning

confidence: 99%

“…since it introduces the fastest and easiest bath of photogenerated electrons. Many narrow band gap metal sulphides such as lead sulphide (PbS) [8], cadmium sulphide (CdS) [9], silver sulphide (Ag 2 S) [10], copper (I) sulphide (Cu 2 S) [11,12] and bismuth sulphide (Bi 2 S 3 ) [13] can be used as a photosensitiser of ZnO NRs. For this purpose, Bi 2 S 3 is selected due to its versatility and possible applications in solar cells [14], photocatalysis [15], photodiode arrays [16], infra-red (IR) spectroscopy and photoelectrochemical cells [17].…”

Section: Introductionmentioning

confidence: 99%

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Bismuth sulphide decorated ZnO nanorods heterostructure assembly via controlled SILAR cationic concentration for enhanced photoelectrochemical cells

Al-Zahrani

Zainal

Talib

et al. 2020

Mater. Res. Express

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The current study investigates Bi 2 S 3 thin films coated on ZnO NRAs with varying cationic concentrations through ionic layer adsorption and reaction (SILAR) technique. XRD patterns reveal that Bi 2 S 3 is successfully synthesised and exhibits orthorhombic structure on the wurtzite ZnO NRAs. The band gap energy (E g ) of Bi 2 S 3 /ZnO NRAs shows a notable red shift with increasing cationic concentration. The photocurrent density increases significantly with increasing concentration from 1 mM to 3 mM before decreases at higher concentration due to agglomeration of Bi 2 S 3 NPs and formation of recombination centres. The hybrid photoanode Bi 2 S 3 /ZnO NRAs at 3 mM exhibits the highest photocurrent value (1.92 mA cm −2 ), which is about six times greater than that of plain ZnO NRAs (0.337 mA cm −2 ). The high photoconversion efficiency value of 1.65% versus 0.5 V Ag A −1 g −1 C −1 l −1 is obtained by Bi 2 S 3 /ZnO NRAs (3 mM) in comparison with pristine ZnO NRs, mainly due to the stepwise band alignment edge and significant enhancement of morphological and optical properties. The study reveals that controlling the cationic concentration can potentially improve the photoconversion efficiency.

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Section: Resultssupporting

confidence: 88%

Section: Resultssupporting

confidence: 79%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Bismuth sulphide decorated ZnO nanorods heterostructure assembly via controlled SILAR cationic concentration for enhanced photoelectrochemical cells

Al-Zahrani

Zainal

Talib

et al. 2020

Mater. Res. Express

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“…QDs represents a more efficient solution with respect of dye sensitizers because of better stability and chemical compatibility with ZnO, tunable properties and dimensions by ease control of synthesis parameter and higher optical absorption. A great variety of semiconducting QDs like CdS, CdSe, CdTe, PbS, PbSe, CuInS 2 , Bi 2 S 3 , In 2 S 3 , and carbon QDs has been implemented in ZnO based photovoltaic cell to work in visible range and cover a larger adsorption spectrum. Functionalization of ZnO nanostructures with QDs can be classified in two groups depending on the particles growth approach.…”

Section: Surface‐engineering Of Zno Nanostructures With Nanoparticlesmentioning

confidence: 99%

Surface Engineering of Nanostructured ZnO Surfaces

Laurenti

Stassi

Canavese

et al. 2016

Adv Materials Inter

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are oriented in one direction and their assembly and stacking produces the wurtzite hexagonal symmetry. The noncentrosymmetric and anisotropic crystalline structure of wurtzite-like ZnO generates very interesting properties such as piezo-and pyro-electricity: the application of an external stimulus, like mechanical stress or temperature, deforms the tetrahedron structure. This deformation results in a separation between the positive and negative centers of charge, inducing the formation of a dipole moment. [7,8] The polar surface and anisotropic structure of ZnO can be usefully exploited to form different kinds of micro and nanostructures from 0D to 3D, [5] including, but not limited to nanowires, [9][10][11][12] nanotubes, [13,14] nanobelts, [15][16][17][18][19] nanorings, [20] flower-like morphologies, [21][22][23][24][25] multipods, [26,27] tetrapods, [28][29][30] sponge-like structures [31][32][33][34] and so on [29,[35][36][37][38][39] (Figure 1). Therefore, several research efforts have been invested in studying various preparation procedures for ZnO micro and nano-materials. Wet chemical approaches, like sol-gel, hydrothermal growths, electrodeposition and template-assisted routes, [40,41] as well as vapor-phase methods, for example chemical vapour deposition (CVD), physical vapour deposition (PVD) including sputtering and evaporation approaches, [42][43][44] and epitaxial growth methods [45] are among the most used ones. The great advantages of the wet chemical approaches are the high synthesis versatility, low temperature employed and low costs. [9] From the other side, dry methods take advantage of the high quality and excellent control over the level of crystallinity of the synthesized ZnO structures, as well as the absence of contamination and high purity of the final material. [46] The combination of different properties with the ease and high versatile synthesis of ZnO material in different micro and nanostructures offers a huge possibility of potential applications.For example, ZnO is already used as an efficient catalyst in the selective oxidation of involving oxygenates (i.e., alcohols, aldehydes, and carboxylic acids) and in methanol synthesis catalysts. It is also largely applied as protective, anti-corrosion layer in galvanized steel products, [49][50][51] as well as in paints and sunscreens as an UV absorber. Its biocompatibility makes this material suitable, in the form of microparticles, for paste formulations in cosmetic applications.The combination of the piezoelectric with the semiconducting properties of ZnO is found to result into new exciting physical properties, [52][53][54] and it has recently opened the research field to energy harvesting application. ZnO nanomaterials can be thus used as nanogenerators, able to convert the mechanical deformation from the surrounding environment into electrical Zinc Oxide (ZnO) nanostructures represent promising substrate materials for numerous applications, ranging from new generation solar cells, to bio-and chemical sensors. This interest is due ...

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Eosin‐G and ethyl eosin dye sensitized CdS nanowires towards dye sensitized solar cells applications

Khodiyar,

Mendhe,

Deshmukh

et al. 2024

Can J Chem Eng

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One dimensional (1‐D) CdS nanowires have been grown through a low temperature chemical route and have been sensitized with eosin‐G and ethyl eosin dyes to broaden the absorption spectrum of CdS and to enhance the photoelectrochemical (PEC) performance under illumination. The used method is advantageous due to its simplicity, low cost, scalability, and controllability. Interestingly, eosin‐G and ethyl eosin dyes yield nearly four‐ and six‐fold increase in device efficiency compared to bare CdS when tested in dye‐sensitized solar cell assembly. Structural, surface morphological, optical, and surface wettability studies have been formulated for CdS, whereas identification of materials along with PEC investigations were conducted through current density–voltage (J‐V), external quantum efficiency (EQE), characteristics under the illumination of 94.6 mW/cm2 (AM 1.5G), and electrochemical impedance spectroscopy (EIS).

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SILAR coated Bi2S3 nanoparticles on vertically aligned ZnO nanorods: Synthesis and characterizations

Cited by 54 publications

References 23 publications

Bismuth sulphide decorated ZnO nanorods heterostructure assembly via controlled SILAR cationic concentration for enhanced photoelectrochemical cells

Bismuth sulphide decorated ZnO nanorods heterostructure assembly via controlled SILAR cationic concentration for enhanced photoelectrochemical cells

Surface Engineering of Nanostructured ZnO Surfaces

Eosin‐G and ethyl eosin dye sensitized CdS nanowires towards dye sensitized solar cells applications

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