Synthesis and deposition of nanostructured SnS for semiconductor-sensitized solar cell

Hortikar, S. S.; Kadam, Vishal S.; Rathi, Amruta; Jagtap, Chaitali V.; Pathan, Habib M.; Mulla, I.S.; Adhyapak, Parag V.

doi:10.1007/s10008-017-3642-z

Cited by 9 publications

(10 citation statements)

References 37 publications

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“…This could be due to the intrinsic optical properties of SnS itself [10,16,17]. The low performance was also confirmed by other research groups although some were able to achieve better result due to optimization done on the photoanode layer [11,12]. Further increasing the number of dipping cycles after 4 SILAR cycles does not show any significant improvement on the performance.…”

Section: Resultssupporting

confidence: 52%

“…0.05 M, 0.1 M and 0.5 M). These molarities were selected based on previous reported studies [11,12]. As these studies did not have a thorough investigation on the precursor optimization, we selected a set of general acceptable molarities which started from low molarity.…”

Section: Resultsmentioning

confidence: 99%

“…The literature contains many examples of self-dual Leonard pairs. For instance (i) t ated with an irreducible module for the Terwilliger algebra of the hypercube (see [4, Co Leonard pair of Krawtchouk type (see [10, De nition 6.1]); (iii) the Leonard pair associa module for the Terwilliger algebra of a distance-regular graph that has a spin model in bra (see [1,Theorem], [3,Theorems 4.1, 5.5]); (iv) an appropriately normalized totally (see [11,Lemma 14.8]); (v) the Leonard pair consisting of any two of a modular Leonar De nition 1.4]); (vi) the Leonard pair consisting of a pair of opposite generators for t bra, acting on an evaluation module (see [5,Proposition 9.2]). The example (i) is a spe examples (iii), (iv) are special cases of (v).…”

Section: Introductionmentioning

confidence: 99%

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Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell

Ngoi

Jun

2019

Green Processing and Synthesis

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In this prelimnary work, the aim was to fabricate a simple tin (II) sulfide (SnS) quantum dot-sensitized solar cell (QDSSC) from aqueous solution. The SnS QDSSCs were characterized by using current-voltage test (I-V test), scanning electron microscopy (SEM), and ultraviolet-visible (UV-Vis) spectroscopy. SEM results showed the presence of TiO2 and SnS elements in the sample, confirming the successful synthesis of SnS quantum dots (QDs). The overall efficiency of QDSSCs increased when concentration of the precursor solutions, which were aqueous sodium sulfide and tin (II) sulfate decreased from 0.5 M to 0.05 M. On the other hand, for a fixed precursor concentration, the efficiency of QDSSC reduced once an optimal cycle of of successive ionic layer adsorption and reaction (SILAR) was achieved. The bandgap energies of QDs obtained by extrapolating the Tauc plot were used to predict the QDs size. In general, the QD size was bigger for samples prepared from precursor concentration of 0.5 M, and with higher number of SILAR cycle used. The best performance was obtained from sample prepared from 0.05 M precursor concentration with 4 SILAR cycles.

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Section: Resultssupporting

confidence: 52%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell

Ngoi

Jun

2019

Green Processing and Synthesis

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“…Tin and its alloys play a very important role in surface treatments, electrical, electronic and microelectronic technologies, because of their specific characteristics such as: non-toxicity, ductility, malleability, and high corrosion resistance. 1 Furthermore, tin and its alloys have been used as: anodic materials in lithium and sodium-42 K E S R I , AFFOUNE and DJAGHOUT -ion batteries, [2][3][4][5] semiconductor materials in solar cells, 6 photocatalysts for photodegradation of organic compounds 7 and as a catalyst for methanol oxidation in fuel cells. 8 Electrodeposition of tin and its alloys is generally carried out using sulphate or chloride based stannous baths, in acidic [9][10][11][12][13][14][15][16][17][18][19][20][21] or alkaline 22,23 media.…”

Section: Introductionmentioning

confidence: 99%

Effects of thiourea on the kinetics and electrochemical nucleation of tin electrodeposition from stannous chloride bath in acidic medium

Kesri¹,

Affoune²,

Djaghout³

2019

JSCS

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The effects of thiourea (TU) on the kinetics and electrochemical nucleation of tin from stannous chloride bath in acidic medium have been investigated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and chronoamperometry. CV results showed that the tin reduction is a one-step reaction and indicated that TU inhibited the reduction of tin ions at high concentration. EIS analysis showed that the electrodeposition process of tin is affected by the addition of TU. The nucleation mechanism of tin was studied using both Sharifker-Hills (SH) and Palomar-Pardavé (PP) models. SH model indicated that hydrogen evolution and tin reduction occurred simultaneously. Non-dimensional current-time transients curves based on PP model revealed that the tin nucleation followed 3D progressive mechanism without TU and with 0.01 M TU, while the nucleation process changes to 3D instantaneous in presence of 0.1 M TU. However, at 1 M TU, the nucleation mechanism is located between instantaneous and progressive model. The proton reduction reaction was inhibited at all concentrations of TU. Quantitative determination showed that in the presence of TU, the diffusion coefficient of tin species, the hydrogen evolution rate constant, the nucleation rate constant and the number of active sites were decreased.

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“…SnS is a IV-VI group compound and the constituent elements are earth abundant and non-toxic, and so has attracted significant attention recently. Until now, the most common applications of SnS include Li-batteries [13], photovoltaic cells [14], photocatalysts [11], and electrocatalysts [12,15]. However, the low effective carrier density, Fermi pinning by the surface states of the electrode and electrolyte, carrier recombination at the boundaries by small grain sizes, and defects leading to carrier recombination at the junction have obstructed the HER efficiency of sulfides [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Air Plasma Treated SnS Films: An Efficient Electrocatalyst for HER

et al. 2018

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Here, we demonstrate the enhanced water-splitting performance (I = 10 mA/cm2, Tafel slope = 60 mV/dec, onset potential = −80 mV) of atmospheric air plasma treated (AAPT) SnS thin films by the hydrogen evolution reaction (HER). The as prepared SnS films were subjected to Atmospheric Air Plasma Treatment (AAPT) which leads to formation of additional phases of Sn and SnO2 at plasma powers of 150 W and 250 W, respectively. The AAPT treatment at 150 W leads to the evaporation of the S atoms as SO2 generates a number of S-vacancies and Sn active edge sites over the surface of the SnS thin film. S-vacancies also create Sn active edge sites, surface p-type pinning that tunes the suitable band positions, and a hydrophilic surface which is beneficial for hydrogen adsorption/desorption. At high plasma power (250 W), the surface of the SnS films becomes oxidized and degrades the HER performance. These results demonstrate that AAPT (150 W) is capable of improving the HER performance of SnS thin films and our results indicate that SnS thin films can work as efficient electrocatalysts for HER.

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Synthesis and deposition of nanostructured SnS for semiconductor-sensitized solar cell

Cited by 9 publications

References 37 publications

Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell

Study of fabrication of fully aqueous solution processed SnS quantum dot-sensitized solar cell

Effects of thiourea on the kinetics and electrochemical nucleation of tin electrodeposition from stannous chloride bath in acidic medium

Atmospheric Air Plasma Treated SnS Films: An Efficient Electrocatalyst for HER

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