Nanoscience and Nanotechnology Letters
·
2015
·Vol. 7
·期 5
·398-401
·
IF 1.431
Wang Shanshan,Zhang Jun,Peng Feng,Shao Lexi
Micron-sized Cu2FeSnS4 single crystals were synthesized by molten salt method using CuS, FeS and SnS as raw materials and using CsCl as fluxing agent for the first time. The Cu2FeSnS4 single crystals were investigated by X-ray diffraction,
Raman, X-ray photoelectron spectroscopy and UV-vis absorbance spectroscopy. The results showed that the Cu2FeSnS4 single crystals were having stannite structure with an average size about 50–100 μm and the band gap was about 1.45 eV.
研究领域:
材料科学
·
化学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2015
·
IF 2.711
Jiasong Zhong,Qingyao Wang,Daqin Chen,Leifeng Chen,Hua Yu,Hongwei Lu,Zhenguo Ji
In this work, we developed a novel environmentally friendly strategy toward solvothermal synthesis of 3D hierarchical Cu 2 FeSnS 4 microspheres with the utilization of l -cystine, an amino acid, as a coordination agent and sulfur donor. The crystal structure, surface morphology and microstructure of the as-prepared products were investigated. The results showed that the 3D hierarchical Cu 2 FeSnS 4 microspheres were composed of stannite nanosheets, and the average thickness of nanosheets was 100 nm. Moreover, the 3D hierarchical Cu 2 FeSnS 4 exhibited high efficiency in the photodegradation of RhB under visible light illumination, suggesting a promising candidate for treatment of organic pollutants in waste water.
研究领域:
材料科学
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环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2017
·
IF 2.572
Shuo Wang,Ruixin Ma,Chengyan Wang,Shina Li,Hua Wang
Quaternary chalcogenide Cu2FeSnS4 (CFTS) thin film, a potential material for application as absorber layer in thin film solar cells (TFSCs), dye-sensitized solar cell and photocatalytic, are successfully synthesized by using a convenient blade-coating method. Alkali element Rb was incorporated into CFTS thin films in order to further improve the structure and surface morphology. X-ray diffraction, Raman spectroscopy and field emission scanning electron microscopy were used to characterize the phase purity, morphology and composition of CFTS particles and thin films. It showed that the diffusion of Rb ions is uniform in the films after sulfurization, Rb ions incorporation in CFTS thin films could improve the grain size and surface morphology. All the thin films became smooth and closely packed surface, the thickness of the incorporated films is around 1 μm.
研究领域:
材料科学
·
光伏技术
·
薄膜制备
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2023
·Vol. 16
·期 13
·4743
·
IF 3.4
Jianming Wen,Suqin Chen,You Xu,Tuxiang Guan,Xiaoyan Zhang,Ningzhong Bao
Two-dimensional Cu2FeSnS4(CFTS) nanosheets with exposed high-energy facets (111) have been synthesized by a facile, scalable, and cost-effective one-pot heating process. The CFTS phase formation is confirmed by both X-ray diffraction and Raman spectroscopy. The formation mechanism of exposed high-energy facet CFTS growth is proposed and its electrochemical and photoelectrochemical properties are investigated in detail to reveal the origin of the anisotropic effect of the high-energy facets. Dye-sensitized solar cells (DSSC) achieve a favorable power conversion efficiency of 5.92% when employing CFTS thin film as a counter electrode, suggesting its potential as a cost-effective substitute for Pt in DSSCs.Keywords:Cu2FeSnS4nanosheets;high-energy facets;counter electrode;dye-sensitized solar cells
研究领域:
材料科学
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能源科学
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产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2019
·
IF 14.229
Lingshuai Kong,Guodong Fang,Yufeng Chen,Meng Xie,Feng Zhu,Long Ma,Dongmei Zhou,Jinhua Zhan
In this study, a flower-like Cu 2 FeSnS 4 (CFTS) nanomaterial was applied to the activation of persulfate (PS) for the degradation of bisphenol A (BPA) in model industrial wastewater. The efficiency of PS decomposition by CFTS, and the mechanism of contaminant degradation by SO 4 − were investigated. The results revealed that CFTS catalyzes PS decomposition more efficiently than the monometallic Cu/Fe/Sn sulfides and exhibits activity over a wide pH range. Electron spin resonance spectroscopy, X-ray photoelectron spectroscopy, and free radical quenching experiments revealed a tandem synergistic effect between Cu, Fe, and Sn in their quaternary chalcogenide systems upon PS activation. The intrinsic electron transfer between Cu, Fe and Sn, especially the Fe(II)* species formed upon the complexation of Fe(II) by S on the surface of the CFTS, overcomes the inhibition of the M (n+1)+ /M n+ redox cycle. CFTS shows promise as a catalyst for wastewater treatment.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Optoelectronics Letters
·
2017
·Vol. 13
·期 4
·291-294
·
IF 0
Wang Shuo,Ma Rui-xin,Wang Cheng-yan,Li Shi-na,Wang Hua
Quaternary chalcogenide Cu 2 FeSnS 4 (CFTS) nanoparticles, as a kind of potential absorber layer material in thin film solar cells (TFSCs), were successfully synthesized by using a convenient solvothermal method. Alkali element K is incorporated into CFTS thin films in order to further improve the surface morphology and the optical properties of related films. X-ray diffraction (XRD), Raman spectroscopy and field emission scanning electron microscopy (FESEM) were used to characterize the phase purity, morphology and composition of CFTS particles and thin films. The results show that the particle elemental ratios of Cu/(Fe+Sn) and Fe/Sn are 1.2 and 0.9, respectively, which are close to the characteristics of stoichiometric CFTS. The band gaps of CFTS films before and after doping K ions are estimated to be 1.44 eV and 1.4 eV with an error of ±0.02 eV.
研究领域:
材料科学
·
半导体物理
·
薄膜太阳能电池
·
无机功能材料
·
光电材料
✓ 已验证
DOI
Journal of Nanomaterials
·
2012
·Vol. 2012
·期 1
·708648
·
IF 1.376
Xiaolu Liang,Xianhua Wei,Daocheng Pan
Diluted magnetic semiconductor Cu 2 FeSnS 4 nanocrystals with a novel zincblende structure have been successfully synthesized by a hot-injection approach. Cu + , Fe 2+ , and Sn 4+ ions occupy the same position in the zincblende unit cell, and their occupancy possibilities are 1/2, 1/4, and 1/4, respectively. The nanocrystals were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), energy-dispersive spectroscopy (EDS), and UV-vis-NIR absorption spectroscopy. The nanocrystals have an average size of 7.5 nm and a band gap of 1.1 eV and show a weak ferromagnetic behavior at low temperature.
✓ 已验证
DOI
高影响因子
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
·
2015
·Vol. 2015
·期 16
·2690-2694
·
IF 2.942
Binbin Zhou,Xiunan Yan,Pan Li,Liangbao Yang,Daoyang Yu
The quaternary chalcogenide Cu 2 FeSnS 4 is important and interesting owing to its many advantageous characteristics for photovoltaic and optoelectronic applications, such as a suitable direct band gap (1.0–1.5 eV), low toxicity, and a relatively high abundance of the elements in the Earth's crust. To date, most of the reports on Cu 2 FeSnS 4 have focused on the synthetic method and optical properties, and few studies have comprehensively and systematically reported the growth mechanism of Cu 2 FeSnS 4 nanoparticles. Therefore, we have synthesized Cu 2 FeSnS 4 nanocrystals by a simple hot-injection method and performed detailed characterizations. Raman spectroscopy is a characterization tool to differentiate the mixed-composition phases in the synthetic pathway of Cu 2 FeSnS 4 nanocrystals, which cannot be efficiently distinguished by X-ray diffraction. A possible synthesis mechanism for Cu 2 FeSnS 4 has been proposed. Graphical Few studies have systematically reported the growth mechanism of Cu 2 FeSnS 4 nanoparticles. The XRD patterns of these quaternary compounds are difficult to interpret, as their structural similarity to the binary chalcogenides of the same elements results in overlapping diffraction peaks. We use Raman spectroscopy as a sensitive characterization technique to understand the pathway to Cu 2 FeSnS 4 .
研究领域:
材料科学
·
纳米技术
·
光谱学
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光伏技术
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无机化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2017
·
IF 3.387
Shuo Wang,Ruixin Ma,Chengyan Wang,Shina Li,Hua Wang
This report details the development of a simple, non-vacuum, mild route for the fabrication of CFTS and CFTSSe thin films. This work investigates the synthesis of CFTS powder using solid-phase synthesis. Subsequently, the stable colloidal ink was prepared and blade-coated onto Mo-coated substrates followed by an annealing process under an Ar atmosphere. Thin films of this material were converted into CFTS and CFTSSe thin films by sintering and exposing them in sulfur or selenium vapor. The structures of the CFTS and CFTSSe were observed to be consistent with the stannite phase. The crystal lattice parameters of the CFTS and CFTSSe post-annealed films were determined by their respective X-ray diffraction patterns and Raman scattering measurements. The band gaps of CFTS and CFTSSe films, as determined by UV–vis absorption, were estimated to be 1.32 eV and 1.22 eV with an error of ±0.02 eV. The corresponding CFTS and CFTSSe films showed a clear photoresponse without current transients, which is promising for future photovoltaic applications.
研究领域:
材料科学
·
光伏技术
·
半导体薄膜
·
固态化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）