Structural and optical characterizations of Cu2SnS3 (CTS) nanoparticles synthesized by one-step green hydrothermal route

Belaqziz, M.; Medjnoun, K.; Djessas, K.; Chehouani, H.; Grillo, Stefano

doi:10.1016/j.materresbull.2017.11.004

Cited by 25 publications

(8 citation statements)

References 58 publications

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“…Among these compounds, Cu 2 SnS 3 (CTS) has attracted particular attention due to its potential to be used as small band semiconductors for infrared photodetectors, but also for photocatalytic, optoelectronic, and supercapacitor applications 11 – 16 . CTS is also regarded as a precursor for the synthesis of CZTS materials used in solar cells devices 17 , 18 . A highly crystalline CZTS phase can be obtained by the optimization of the Cu 2 SnS 3 synthesis conditions and the addition of a ZnS layer 19 on top of CTS.…”

Section: Introductionmentioning

confidence: 99%

Effect of the stacking order, annealing temperature and atmosphere on crystal phase and optical properties of Cu2SnS3

Zaki

Sava

Şimăndan

et al. 2022

Sci Rep

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Cu2SnS3 (CTS) is emerging as a promising absorber for the next generation thin film solar cells (TFSC) due to its excellent optical and electronic properties, earth-abundance and eco-friendly elemental composition. In addition, CTS can be used as precursor films for the Cu2ZnSnS4 (CZTS) synthesis. The optical properties of CTS are influenced by stoichiometry, crystalline structure, secondary phases and crystallite size. Routes for obtaining CTS films with optimized properties for TFSC are still being sought. Here, the CTS thin films synthesized by magnetron sputtering on soda lime glass (SLG) using Cu and SnS2 targets in two different stacks, were studied. The SLG\Cu\SnS2 and SLG\SnS2\Cu stacks were annealed in S and Sn + S atmospheres, at various temperatures. Both stacks show a polymorphic structure, and higher annealing temperatures favor the monoclinic CTS phase formation. Morphology is influenced by the stacking order since a SnS2 top layer generates several voids on the surface due to the evaporation of SnS, while a Cu top layer provides uniform and void-free surfaces. The films in the copper-capped stack annealed under Sn + S atmosphere have the best structural, morphological, compositional and optical properties, with tunable band gaps between 1.18 and 1.37 eV. Remarkably, secondary phases are present only in a very low percent (< 3.5%) in samples annealed at higher temperatures. This new synthesis strategy opens the way for obtaining CTS thin films for solar cell applications, that can be used also as intermediary stage for CZTS synthesis.

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Section: Introductionmentioning

confidence: 99%

Effect of the stacking order, annealing temperature and atmosphere on crystal phase and optical properties of Cu2SnS3

Zaki

Sava

Şimăndan

et al. 2022

Sci Rep

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“…[2,3] CTS compound exhibits a number of advantages for photovoltaic and optoelectronic applications, such as high optical absorption coefficient (higher than 10 4 cm À1 ), adequate direct band gap around 1 eV and theoretical conversion efficiency of up to 30%. [4][5][6][7] CTS is a polymorphic material and can have different crystalline structures. Although the chemical nature remains the same, many physical properties such as for instance morphology, solubility, dissolution, bioavailability, and isolation properties may differ between polymorphs.…”

Section: Introductionmentioning

confidence: 99%

“…[ 2,3 ] CTS compound exhibits a number of advantages for photovoltaic and optoelectronic applications, such as high optical absorption coefficient (higher than 10 4 cm −1 ), adequate direct band gap around 1 eV and theoretical conversion efficiency of up to 30%. [ 4–7 ]…”

Section: Introductionmentioning

confidence: 99%

Vibrational properties of the mechanochemically synthesized Cu₂SnS₃: Raman study

Trajić

Ćurčić

Luna

et al. 2022

J Raman Spectroscopy

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Cu2SnS3 (CTS) is a simple and promising material for solar cells. Various physical and chemical techniques have been employed for synthesis of CTS nanocrystals among which mechanochemical synthesis is a great alternative due to its simplicity, solvent‐free character, and reproducibility. We present the analysis of the vibration properties of mechanochemically synthesized CTS nanocrystals. The milling time influence on CTS synthesis from elemental precursors Cu, Sn, and S was observed. The scanning electron microscopy (SEM), X‐ray diffraction (XRD), and Raman spectroscopy was used to characterize the crystal structure and compositional purity of the obtained nanoparticles. In order to investigate the individual steps of the synthesis, samples obtained after 15 s and 5, 10, 15, and 30 min of milling time were analyzed. The detailed analysis of the Raman spectra has allowed us to determine the wavenumber of the main and weaker peaks, and discern the phase, crystal structure, and secondary phases. The formation of monoclinic and tetragonal CTS phases, with oxidized surface (due to milling in air) was confirmed.

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“…Although vacuum-based methods result in efficient solar cells, these methods normally suffer from the complicated and high cost facilities. Non-vacuum based solution methods such as spray pyrolysis [8,16], nanoparticle-ink deposition [9,17], chemical bath deposition [18] and molecular precursor solution method [19][20][21][22][23][24] have been used for low cost and scalable fabrication of CTS thin films for solar cells. Among these solution methods, molecular precursor solution method is of great importance because it is easy to control composition in the resulting film and avoid the complex steps associated with nanocrystal synthesis.…”

Section: Introductionmentioning

confidence: 99%

Solution-processed extremely thin films of Cu₂SnS₃ nanoparticles for planar heterojunction solar cells

Ashebir

Dong

Chen

et al. 2020

J. Phys. D: Appl. Phys.

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Cu 2 ZnSn(S,Se) 4 solar cells prepared by a hydrazine-based solution method. However, preparing a high-quality CZTS without binary or ternary impurity phases is a challenge due to the multiple elements and narrow phase stability region of CZTS [4]. Moreover, intrinsic defects such as antisite cation disordering (i.e. Cu Zn + Zn Cu ) and associated band tailing are prevalent in CZTS due to similar radii of Cu and Zn, which is the main bottleneck for the photovoltaic performance improvement in CZTS solar cells [5,6]. Recently, ternary compound Cu 2 SnS 3 (CTS) as an absorber material has drawn a lot of attention in thin film solar cells [7]. CTS is a p-type semiconducting mat erial with a high optical absorption coefficient

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Structural and optical characterizations of Cu2SnS3 (CTS) nanoparticles synthesized by one-step green hydrothermal route

Cited by 25 publications

References 58 publications

Effect of the stacking order, annealing temperature and atmosphere on crystal phase and optical properties of Cu2SnS3

Effect of the stacking order, annealing temperature and atmosphere on crystal phase and optical properties of Cu2SnS3

Vibrational properties of the mechanochemically synthesized Cu₂SnS₃: Raman study

Solution-processed extremely thin films of Cu₂SnS₃ nanoparticles for planar heterojunction solar cells

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Structural and optical characterizations of Cu2SnS3 (CTS) nanoparticles synthesized by one-step green hydrothermal route

Cited by 25 publications

References 58 publications

Effect of the stacking order, annealing temperature and atmosphere on crystal phase and optical properties of Cu2SnS3

Effect of the stacking order, annealing temperature and atmosphere on crystal phase and optical properties of Cu2SnS3

Vibrational properties of the mechanochemically synthesized Cu2SnS3: Raman study

Solution-processed extremely thin films of Cu2SnS3 nanoparticles for planar heterojunction solar cells

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Product

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Vibrational properties of the mechanochemically synthesized Cu₂SnS₃: Raman study

Solution-processed extremely thin films of Cu₂SnS₃ nanoparticles for planar heterojunction solar cells