Aqueous synthesis of wurtzite Cu2ZnSnS4 nanocrystals

Kang, Chia-Cheng; Chen, Hsuan-Fu; Yu, Tzu-Chiu; Lin, Tzu‐Chieh

doi:10.1016/j.matlet.2013.01.014

Cited by 26 publications

(5 citation statements)

References 18 publications

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“…Water-soluble CZTS NCs were reported in a one-pot aqueous synthesis, in which the metal salts (i.e. CuSO 4 , ZnAc 2 , SnCl 2 ) were dissolved in deionized water, along with Na 2 S and 3-mercaptopropionic acid (MPA) as the sulfur source and ligand, respectively . The reaction was carried out at 95 °C for 24 h and formed wurtzite structured NCs with sizes ranging from 5 to 20 nm in diameter.…”

Section: Synthesis Of Copper Chalcogenide Nanocrystalsmentioning

confidence: 99%

Compound Copper Chalcogenide Nanocrystals

et al. 2017

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This review captures the synthesis, assembly, properties, and applications of copper chalcogenide NCs, which have achieved significant research interest in the last decade due to their compositional and structural versatility. The outstanding functional properties of these materials stems from the relationship between their band structure and defect concentration, including charge carrier concentration and electronic conductivity character, which consequently affects their optoelectronic, optical, and plasmonic properties. This, combined with several metastable crystal phases and stoichiometries and the low energy of formation of defects, makes the reproducible synthesis of these materials, with tunable parameters, remarkable. Further to this, the review captures the progress of the hierarchical assembly of these NCs, which bridges the link between their discrete and collective properties. Their ubiquitous application set has cross-cut energy conversion (photovoltaics, photocatalysis, thermoelectrics), energy storage (lithium-ion batteries, hydrogen generation), emissive materials (plasmonics, LEDs, biolabelling), sensors (electrochemical, biochemical), biomedical devices (magnetic resonance imaging, X-ray computer tomography), and medical therapies (photochemothermal therapies, immunotherapy, radiotherapy, and drug delivery). The confluence of advances in the synthesis, assembly, and application of these NCs in the past decade has the potential to significantly impact society, both economically and environmentally.

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Section: Synthesis Of Copper Chalcogenide Nanocrystalsmentioning

confidence: 99%

Compound Copper Chalcogenide Nanocrystals

et al. 2017

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“…We believe that metal defects resulting from nonstoichiometric composition, excess of Sn, and the absence of large, dense, and adherent grains can be the reasons for the low value of I light /I dark . The resistivity of CFTS thin films was decreased under illumination due to the photo-induced increase of charge carriers [37], indicating the potential of this film for photovoltaic applications.…”

Section: Characterization Of Czfts Thin Filmsmentioning

confidence: 99%

Solvothermal synthesis of Cu₂Zn_1−xFe_xSnS₄nanoparticles and the influence of annealing conditions on drop-casted thin films

Shadrokh

Yazdani

Eshghi

2016

Semicond. Sci. Technol.

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Cu 2 Zn 1−x Fe x SnS 4 (CZFTS) semiconductor alloy sphere-like nanoparticles were synthesized by a solvothermal method and their thin films were fabricated using afacile drop casting route then annealed in Ar and/or sulfur atmosphere. The sphere-like CZFTS nanoparticles demonstrate promising morphological, structural, and optical properties for anabsorber layer in thin film solar cells. X-ray diffraction patterns, Raman spectra and EDS measurements of thesamples indicate that a phase transition from kesterite to stannite occurred by increasing the Fe content toFe/Fe+Zn=0.61 ratio. Moreover, the increase in Fe content (0x1) resulted in a variation of the band gap energies of CZFTS from ∼1.515 to 1.206 eV on the basis of a parabolic decreasing trend. From aband gap bowing model we derived a small bowing constant of b∼0.2009±0.02 eV, indicating suitable miscibility of alloyed constituents in the host crystal lattice. The films annealed in sulfur showed a dense, uniform, low-crack surface, high thickness and low transmission compared to the films annealed in Ar flow. The four-point probe analysis showed anincreasing resistivity of samples annealed in Ar withincreasing Fe content.

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“…In this view, the development of more straightforward synthetic approaches, for example, those of synthesizing CZTS NCs directly in water are of considerable importance. However, the examples of aqueous syntheses of CZTS NCs are quite rare 53,54 typically yielding strongly agglomerated NCs and providing no reliable means for the control of the NC size and size distribution. Only recently aqueous syntheses with Sn 2 S 6 4− complex anions as capping ligands were reported to produce stable and uniform CZTS NCs 55,56 .…”

Section: Introductionmentioning

confidence: 99%

“Green” Aqueous Synthesis and Advanced Spectral Characterization of Size-Selected Cu2ZnSnS4 Nanocrystal Inks

Stroyuk

Raevskaya

Selyshchev

et al. 2018

Sci Rep

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Structure, composition, and optical properties of colloidal mercaptoacetate-stabilized Cu2ZnSnS4 (CZTS) nanocrystal inks produced by a “green” method directly in aqueous solutions were characterized. A size-selective precipitation procedure using 2-propanol as a non-solvent allows separating a series of fractions of CZTS nanocrystals with an average size (bandgap) varying from 3 nm (1.72 eV) to 2 nm (2.04 eV). The size-selected CZTS nanocrystals revealed also phonon confinement, with the main phonon mode frequency varying by about 4 cm−1 between 2 nm and 3 nm NCs.

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Aqueous synthesis of wurtzite Cu2ZnSnS4 nanocrystals

Cited by 26 publications

References 18 publications

Compound Copper Chalcogenide Nanocrystals

Compound Copper Chalcogenide Nanocrystals

Solvothermal synthesis of Cu₂Zn_1−xFe_xSnS₄nanoparticles and the influence of annealing conditions on drop-casted thin films

“Green” Aqueous Synthesis and Advanced Spectral Characterization of Size-Selected Cu2ZnSnS4 Nanocrystal Inks

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Aqueous synthesis of wurtzite Cu2ZnSnS4 nanocrystals

Cited by 26 publications

References 18 publications

Compound Copper Chalcogenide Nanocrystals

Compound Copper Chalcogenide Nanocrystals

Solvothermal synthesis of Cu2Zn1−xFexSnS4nanoparticles and the influence of annealing conditions on drop-casted thin films

“Green” Aqueous Synthesis and Advanced Spectral Characterization of Size-Selected Cu2ZnSnS4 Nanocrystal Inks

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Solvothermal synthesis of Cu₂Zn_1−xFe_xSnS₄nanoparticles and the influence of annealing conditions on drop-casted thin films