Ultrasonic spray coating of kesterite CZTS films from molecular inks

Ghediya, Prashant R.; Silvano, Joao; Verding, Pieter; Kumar, Rachith Shanivarasanthe Nithyananda; Brammertz, Guy; Paulus, Andreas; Elen, Ken; Ruttens, Bart; Shukla, Sudhanshu; D’Haen, Jan; Hardy, An; Vermang, Bart; Deferme, Wim

doi:10.1007/s00339-023-06692-0

Appl. Phys. A

2023

DOI: 10.1007/s00339-023-06692-0

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Ultrasonic spray coating of kesterite CZTS films from molecular inks

Prashant R. Ghediya

Joao Silvano

Pieter Verding

et al.

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Cited by 3 publications

References 55 publications

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Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Javed,

Donmez,

Jones

et al. 2024

Energy Tech

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Solution‐processed kesterite (copper zinc tin sulfide [CZTS]) solar cells attract significant attention owing to their low cost, ease of large‐scale production, and earth‐abundant elemental composition, which make these devices promising to fulfill the ever‐increasing demand of the photovoltaic (PV) industry. Compared to the performances of expensive vacuum‐based techniques, colloidal nanocrystal kesterite solar cells garner substantial interest due to their economical and rapid processing. Led by the hot‐injection method, organic solvent‐based techniques are widely adopted to realize CZTS nanocrystal inks. With organic solvents, ligand‐stabilized nanoparticles are formed leading to dispersive and homogenous kesterite inks. However, the presence of carbon‐rich ligands around the nanocrystal surface often leads to the formation of a fine‐grain layer that is rich in carbon content. The organic ligands decompose into amorphous carbon residues during a high‐temperature annealing process and hinder the grain growth process. The carbon‐rich fine‐grain (CRFG) layer generally poses a negative influence on the PV performance of the kesterite solar cell; however, few reports maintain their disposition about CRFG as innocuous. In this review study, a detailed discussion on CRFG is presented, aiming to understand the insights about its formation and impact on the device's performance.

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Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Javed,

Donmez,

Jones

et al. 2024

Energy Tech

View full text Add to dashboard Cite

show abstract

Spray coated of newly La-doped SnS2 thin films for photocatalytic degradation application

Nebatti Ech-Chergui,

Ghediya,

Khane

et al. 2023

Physica B: Condensed Matter

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Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity

Radja,

Nebatti Ech-Chergui,

Zekri

et al. 2024

Phys. Scr.

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Tin sulfide (SnS2) is a material known for its effective photocatalytic activity due to its affordability and wide light spectrum response. To enhance and optimize its optical and chemical characteristics, doping is a straightforward approach that can improve its photocatalytic efficiency. This work focuses on the effect of Cu doping on the structural, optical, and photocatalytic properties of the thin films prepared by the spray-coating approach. XRD confirms the hexagonal SnS2 structure. As the amount of Cu added increases, the crystallite size decreases while dislocation density rises. The effective band gap is in the range of 1.9-2.2 eV. SEM image reveals a variety of morphologies, and the porosity is reduced with increasing Cu doping. Furthermore, the FTIR study confirm the Sn-S bond present at 753 cm-1. EPR studies reveal the existence of sulphur vacancies in Cu-doped SnS2. Mechanical properties were also affected, with an observed decrease in microhardness as the dopant concentration increased. The photocatalytic activity of the samples is studied by photocatalytic degradation of malachite green and Congo red dyes under visible light irradiation. Additionally, their antibacterial effect against Escherichia coli was examined. This study shows that an optimal amount of Cu doping can significantly increase the photocatalytic performance of SnS2 for efficiently decomposing organic pollutants and enhance antibacterial activities.

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Ultrasonic spray coating of kesterite CZTS films from molecular inks

Cited by 3 publications

References 55 publications

Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Spray coated of newly La-doped SnS2 thin films for photocatalytic degradation application

Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity

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About

Ultrasonic spray coating of kesterite CZTS films from molecular inks

Cited by 3 publications

References 55 publications

Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Kesterite Films Processed with Organic Solvents: Unveiling the Impact of Carbon‐Rich Fine‐Grain‐Layer Formation on Solar‐Cell Performance

Spray coated of newly La-doped SnS2 thin films for photocatalytic degradation application

Influence of Cu doping on the functionality of spray coated SnS2 thin films and its photocatalytic degradation of dyes and antibacterial activity

Contact Info

Product

Resources

About

Influence of Cu doping on the functionality of spray coated SnS₂ thin films and its photocatalytic degradation of dyes and antibacterial activity