Effect of pH and sulfur precursor concentration on electrochemically deposited CZTS thin films using glycine as the complexing agent

Paraye, Akanksha; Sani, Rabiya; Manivannan, R.; Selvam, Noyel Victoria

doi:10.1016/j.apsusc.2017.11.210

Cited by 27 publications

(10 citation statements)

References 45 publications

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“…NiSO 4 ·6H 2 O (1.3143 g), FeSO 4 ·7H 2 O (1.1121 g), CoSO 4 ·7H 2 O (0.2811 g), and C 6 H 5 Na 3 O 7 (0.3676 g) were added to 50 mL of deionized water and stirred to obtain an electrolyte. C 6 H 5 Na 3 O 7 as a complexing agent can effectively optimize the deposition potential of metal ions and assist metal ion binding and then modify the surface morphology of the materials . The electrodeposition was performed in a three-electrode cell, and NF was used as the working electrode, a platinum tablet as the counter electrode, and a saturated Ag/AgCl electrode as the reference electrode, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…can effectively optimize the deposition potential of metal ions and assist metal ion binding and then modify the surface morphology of the materials. 27 The electrodeposition was performed in a threeelectrode cell, and NF was used as the working electrode, a platinum tablet as the counter electrode, and a saturated Ag/AgCl electrode as the reference electrode, respectively. During electrodeposition, constant current electrodeposition was carried out on NF at a current density of −0.2 A cm −2 for 20 min.…”

Section: Methodsmentioning

confidence: 99%

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Regulating Complex Transition Metal Oxyhydroxides Using Ni₃S₂: 3D NiCoFe(oxy)hydroxide/Ni₃S₂/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction

Fan

Shi

2023

Inorg. Chem.

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In electrochemical decomposition of water, the slow kinetics of the anodic oxygen evolution reaction (OER) is a challenge for efficient hydrogen production. Heterointerface engineering is a desirable way to rationally design electrocatalysts for the OER. Herein, we designed and fabricated a nanoparticle flower-like NiCoFe(oxy)hydroxide catalyst in situ grown on the surface of Ni 3 S 2 /NF to construct a heterojunction via combining hydrothermal and electrodeposition methods. The heterostructure exhibits a smaller overpotential of 254 mV at a large current density of 100 mA cm −2 in 1 M KOH than that of pristine NiCoFeO x H y /NF (356 mV) and Ni 3 S 2 /NF (471 mV). Tafel and electrochemical impedance spectroscopy further showed a favorable kinetics during electrolysis. The role of the substrate Ni 3 S 2 was explored via density functional theory calculations. Our calculations found that SO x on the Ni 3 S 2 surface is a strong nucleophilic group and the synergy effect between Fe and SO x could break *OOH to reduce the Gibbs energy. We also found that the contribution of SO x in sulfates to the OER activity could be negligible. Furthermore, a series of comparative samples were prepared to test this synergy effect. Our experiments indicated that the introduction of Ni 3 S 2 is beneficial. The present contribution provides an important helpful insight into the design and fabrication of novel and highly efficient heterostructure electrocatalysts by introducing nucleophilic groups at the interface.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Regulating Complex Transition Metal Oxyhydroxides Using Ni₃S₂: 3D NiCoFe(oxy)hydroxide/Ni₃S₂/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction

Fan

Shi

2023

Inorg. Chem.

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“…Tauc's equation relates the optical band gap ( E g ) with the absorption coefficient (α) as shown in Eq. (1) [38],…”

Section: Optical Characteristicsmentioning

confidence: 99%

“…In the Tauc's relation presented above (Eq. (1)) the photon energy (E) is in eV, and the constant n is 0.5 for direct allowed, 1.5 for indirect forbidden and 3 for indirect allowed materials respectively [38]. The Tauc plots for the annealed and non-annealed samples are shown in Fig.…”

Section: Optical Characteristicsmentioning

confidence: 99%

Facile Ultrasound-Assisted Synthesis of Copper Zinc Tin Sulfide Chalcogenide Nanoparticles for Thin Film Solar Cell Applications

Paraye

Manivannan

Selvam

2020

Period. Polytech. Chem. Eng.

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Single-step ultrasound-assisted synthesis of Copper Zinc Tin Sulfide nanoparticles (CZTS) has been studied at two different frequencies. While the effects of frequency on the particle size of the CZTS nanoparticles were insignificant, a noticeable change was observed in composition. As-obtained particles presented the amorphous nature and spherical morphology with a high degree of agglomeration. Annealing of the synthesized CZTS nanoparticles increased the crystallinity while the sulfur content decreased considerably. The poly-dispersity and agglomeration of the nanoparticles increased upon annealing. The as-obtained CZTS nanoparticles synthesized at 45 kHz frequency presented a copper deprived and zinc-rich composition suitable for higher photo-conversion efficiency of the solar cells. The bandgap of the annealed and non-annealed particles ranged between 1.25 eV and 1.65 eV.

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“…However, poor film morphology can be expected due to masslimited transport and hydrogen evolution. Because of this reason, most of the studies focus on the role of complexing agents to further reduce the difference in reduction potential of the dissolved metallic species leading to improved photoactivity [11][12][13][14][15]. In this context, an alkaline medium can be a valid strategy to reduce the detrimental effects of hydrogen and the overall quality of the growing deposit.…”

Section: Introductionmentioning

confidence: 99%

One-step CZT electroplating from alkaline solution on flexible Mo foil for CZTS absorber

Marchi

Panzeri

Pedrazzetti

et al. 2021

J Solid State Electrochem

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In this work, Cu-Zn-Sn (CZT) is co-electrodeposited onto a flexible Mo substrate exploiting an alkaline bath (pH 10). The plating solution is studied by cyclic voltammetry, highlighting the effects of potassium pyrophosphate (K4P2O7) and EDTA-Na2 on the electrochemical behavior and stability of the metallic ionic species. The optimized synthesis results in a homogeneous precursor layer, with composition Cu 44 ± 2 at. %, Zn 28 ± 1 at. %, and Sn 28 ± 2 at. %. Soft and reactive annealing are employed respectively to promote intermetallic phase formation and sulfurization of the precursor to obtain CZTS. Microstructural (XRD, Raman), morphological (SEM), and compositional (EDX, XRF) characterization is carried out on CZT and CZTS films, showing a minor presence of secondary phases. Finally, photo-assisted water splitting tests are performed considering a CZTS/CdS/Pt photoelectrode, showing a photocurrent density of 1.01 mA cm−2 at 0 V vs. RHE under 1 sun illumination. Graphical abstract

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Effect of pH and sulfur precursor concentration on electrochemically deposited CZTS thin films using glycine as the complexing agent

Cited by 27 publications

References 45 publications

Regulating Complex Transition Metal Oxyhydroxides Using Ni₃S₂: 3D NiCoFe(oxy)hydroxide/Ni₃S₂/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction

Regulating Complex Transition Metal Oxyhydroxides Using Ni₃S₂: 3D NiCoFe(oxy)hydroxide/Ni₃S₂/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction

Facile Ultrasound-Assisted Synthesis of Copper Zinc Tin Sulfide Chalcogenide Nanoparticles for Thin Film Solar Cell Applications

One-step CZT electroplating from alkaline solution on flexible Mo foil for CZTS absorber

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Effect of pH and sulfur precursor concentration on electrochemically deposited CZTS thin films using glycine as the complexing agent

Cited by 27 publications

References 45 publications

Regulating Complex Transition Metal Oxyhydroxides Using Ni3S2: 3D NiCoFe(oxy)hydroxide/Ni3S2/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction

Regulating Complex Transition Metal Oxyhydroxides Using Ni3S2: 3D NiCoFe(oxy)hydroxide/Ni3S2/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction

Facile Ultrasound-Assisted Synthesis of Copper Zinc Tin Sulfide Chalcogenide Nanoparticles for Thin Film Solar Cell Applications

One-step CZT electroplating from alkaline solution on flexible Mo foil for CZTS absorber

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Product

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Regulating Complex Transition Metal Oxyhydroxides Using Ni₃S₂: 3D NiCoFe(oxy)hydroxide/Ni₃S₂/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction

Regulating Complex Transition Metal Oxyhydroxides Using Ni₃S₂: 3D NiCoFe(oxy)hydroxide/Ni₃S₂/Ni Foam for an Efficient Alkaline Oxygen Evolution Reaction