Fabrication of quaternary Cu2FeSnS4 (CFTS) nanocrystalline fibers through electrospinning technique

Özel, Faruk; Kuş, Mahmut; Yar, Adem; Arkan, Emre; Can, Mustafa; Aljabour, Abdalaziz; Varal, Nurhan Mehmet; Ersöz, Mustafa

doi:10.1007/s10853-014-8637-x

Cited by 26 publications

(20 citation statements)

References 24 publications

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“…Figure 3 shows the corresponding spectrum which exhibits a broad absorption in the whole visible region. Similar spectra have been reported in several papers dealing with the optical properties of the CFTS [8, 14, 16, 18, 23]. The bandgap energy of the CFTS sample was determined by plotting the square of absorption coefficient ( α ) times photon energy ( h ν) vs. h ν, according to the formula αhν = α ( hν − E g ) n /2 , where α , h , ν , E g and A are the optical absorption coefficient, Planck’s constant, light frequency, bandgap energy, and a constant, respectively [9].…”

Section: Resultssupporting

confidence: 84%

“…There are several “classical” methods to synthesize CZTS and CFTS nanocrystals, like electrochemical, vacuum and thermal deposition, electron beam evaporation, magnetron sputtering, spray pyrolysis, pulse laser deposition, and sol-gel method [5, 8]. Besides them, other methods like microwave treatment [9, 10], solvothermal synthesis [11–14], hot-injection [15–17], electrospinning [18], and dip-coating [19] were successfully applied. However, these techniques are complex and time-consuming and need high temperature, and in some cases also the utilization of toxic organic solvents is necessary.…”

Section: Introductionmentioning

confidence: 99%

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Mechanochemical Solvent-Free Synthesis of Quaternary Semiconductor Cu-Fe-Sn-S Nanocrystals

Baláž

Sayagués

et al. 2017

Nanoscale Res Lett

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In this study, we demonstrate a one-pot mechanochemical synthesis of the nanocomposite composed of stannite Cu2FeSnS4 and rhodostannite Cu2FeSn3S8 nanocrystals using a planetary ball mill and elemental precursors (Cu, Fe, Sn, S). By this approach, unique nanostructures with interesting properties can be obtained. Methods of XRD, Raman spectroscopy, UV-Vis, nitrogen adsorption, SEM, EDX, HRTEM, STEM, and SQUID magnetometry were applied. Quaternary tetragonal phases of stannite and rhodostannite with crystallite sizes 18–19 nm were obtained. The dominant Raman peaks corresponding to the tetragonal stannite structure corresponding to A-symmetry optical modes were identified in the spectra. The bandgap 1.25 eV calculated from UV-Vis absorption spectrum is very well-acceptable value for the application of the synthesized material. The SEM micrographs illustrate the clusters of particles in micron and submicron range. The formation of agglomerates is also illustrated on the TEM micrographs. Weak ferromagnetic properties of the synthesized nanocrystals were documented.

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Section: Resultssupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Mechanochemical Solvent-Free Synthesis of Quaternary Semiconductor Cu-Fe-Sn-S Nanocrystals

Baláž

Sayagués

et al. 2017

Nanoscale Res Lett

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“…This can be reasonably attributed to the occurrence of melt and thus interconnection undergoing during the annealing process. [27] With the sulfurizing temperature further increasing to 600 ℃ , however, the fiber-characteristic and net-like morphologies are highly decomposed into cracks and the surface becomes discontinuous, as shown in Fig. 1(d), which is mainly due to excessive contraction along the substrate.…”

Section: Characterizationmentioning

confidence: 99%

“…[25] Besides, compact CZTS films had also be obtained by anneaing the electrospinning precursor fibers at 400℃ in air. [26] Just recently, Cu 2 FeSnS 4 [27] fibers had also been successfully fabricated via electrospinning process, demonstrating an extensive expanding of the potential utilization in the third generation solar cells. The above reports on electrospun fibers provide an effective inspiration for further systematical study on morphology dependence of electrospinning obtained CZTS fibers.…”

Section: Introductionmentioning

confidence: 99%

Kesterite Cu2ZnSnS4 compounds via electrospinning: A facile route to mesoporous fibers and dense films

Song

Wang

et al. 2015

Journal of Alloys and Compounds

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“…Similar to these methods, there is also interest in creating quaternary chalcogenides via ES, followed by calcination [319]. Quaternary chalcogenides such as Cu 2 FeSnS 4 (CFTS), Cu 2 ZnSnS 4 , and Cu 2 ZnSnS, among others, represent an economically and ecologically friendly replacement material for chalcopyrite-based semiconductors.…”

Section: Photovoltaic Structuresmentioning

confidence: 99%

Electrospinning for nano- to mesoscale photonic structures

et al. 2016

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Abstract:The fabrication of photonic and electronic structures and devices has directed the manufacturing industry for the last 50 years. Currently, the majority of small-scale photonic devices are created by traditional microfabrication techniques that create features by processes such as lithography and electron or ion beam direct writing. Microfabrication techniques are often expensive and slow. In contrast, the use of electrospinning (ES) in the fabrication of microand nano-scale devices for the manipulation of photons and electrons provides a relatively simple and economic viable alternative. ES involves the delivery of a polymer solution to a capillary held at a high voltage relative to the fiber deposition surface. Electrostatic force developed between the collection plate and the polymer promotes fiber deposition onto the collection plate. Issues with ES fabrication exist primarily due to an instability region that exists between the capillary and collection plate and is characterized by chaotic motion of the depositing polymer fiber. Material limitations to ES also exist; not all polymers of interest are amenable to the ES process due to process dependencies on molecular weight and chain entanglement or incompatibility with other polymers and overall process compatibility. Passive and active electronic and photonic fibers fabricated through the ES have great potential for use in light generation and collection in optical and electronic structures/ devices. ES produces fiber devices that can be combined with inorganic, metallic, biological, or organic materials for novel device design. Synergistic material selection and postprocessing techniques are also utilized for broad-ranging applications of organic nanofibers that span from biological to electronic, photovoltaic, or photonic. As the ability to electrospin optically and/or electronically active materials in a controlled manner continues to improve, the complexity and diversity of devices fabricated from this process can be expected to grow rapidly and provide an alternative to traditional resource-intensive fabrication techniques.

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Fabrication of quaternary Cu2FeSnS4 (CFTS) nanocrystalline fibers through electrospinning technique

Cited by 26 publications

References 24 publications

Mechanochemical Solvent-Free Synthesis of Quaternary Semiconductor Cu-Fe-Sn-S Nanocrystals

Mechanochemical Solvent-Free Synthesis of Quaternary Semiconductor Cu-Fe-Sn-S Nanocrystals

Kesterite Cu2ZnSnS4 compounds via electrospinning: A facile route to mesoporous fibers and dense films

Electrospinning for nano- to mesoscale photonic structures

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