ChemSusChem
·
2023
·Vol. 16
·期 15
·e202300611
·
IF 8.4
Pan Liu,Lei Xu,Zhen-Yu Wang,Yang Huo,Yi-bo Hu,Ming-Lai Fu,Baoling Yuan
Graphical A porous Cu 2 ZnSnS 4 -based photothermal hydrogel (CZTS-PH) was successfully prepared using a foaming process, which exhibited an impressive evaporation rate of 3.249 kg m −1 h −1 and solar-to-vapor conversion efficiency of 96.3 % under 1 sun illumination. Furthermore, the CZTS-PH showed excellent salt resistance and antibacterial performance for its long-term stability and safety of clean water. Solar steam generation technology (SSGT) using unlimited solar energy is regarded as one of the most promising sustainable technologies to produce clean water. However, most of studies on SSGT simply focus on how to improve salt resistance as well as exclude inorganic and organic pollutants in targeted water, and only very limited studies pay attention to the micro-organisms in the collected water. Herein, one porous Cu 2 ZnSnS 4 -based photothermal hydrogel (CZTS-PH) with antibacterial properties as well as good salt resistance was successfully prepared. The CZTS-PH was measured with the water evaporation rate as high as 3.249 kg m −2 h −1 and photothermal conversion efficiency of 96.3 % under one sun irradiation. Impressively, owing to the amino groups in the skeleton, CZTS-PH can significantly deteriorate the cell membrane and lead to the death of the Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ), which ensures its long-term stability photothermal conversion and the safety of clean water. Overall, the admired photothermal conversion efficiency, and the excellent salt resistance and antibacterial performance suggest that CZTS-PH could be a promising full-scale device applied in seawater desalination and water purification.
研究领域:
材料科学
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环境科学
·
生物学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2015
·Vol. 75
·期 1
·25-30
·
IF 1.532
Chen Jin,Chen Qinmiao,Ni Yi,Yamaguchi Yoshinori,Wang Tingting,Jia Zhen,Dou Xiaoming,Zhuang Songlin
Abstract
In the present work, Cu 2 ZnSnS 4 (CZTS) nanoparticles (NPs) for use in low-cost thin film solar cells were successfully synthesized using a facile open-air solution route. Copper(II) chloride dihydrate, zinc(II) acetate dihydrate, tin(II) chloride, and thiourea were used as reagents, and oleylamine was employed as solvent. The effect of varying the Zn content in the precursor solution on the structural, morphological, compositional, and optical properties of the as-synthesized CZTS NPs was investigated via X-ray diffraction, scanning electron microscopy and transmission electron microscopy, energy dispersive X-ray spectroscopy and ultraviolet–visible–infrared spectroscopy, respectively. As observed, the properties of the as-synthesized NPs improved with increasing Zn precursor contents from 0.75 to 1.5 mmol. For instance, the crystallinity of the as-synthesized NPs improved gradually and the band gap energy was tuned from 1.28 to 1.41 eV. The Zn/Sn ratio increased from 0.51 to 0.86, whereas the Cu/(Zn + Sn) ratio decreased from 0.95 to 0.7 with increasing Zn precursor contents. The results indicated that the obtained CZTS NPs, prepared with a Zn precursor content of 1.5 mmol, are a good light-absorbing layer material for application in thin film solar cells. Graphical Abstract
研究领域:
材料科学
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纳米技术
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2021
·
IF 3.927
Xiaomin Huo,Honglie Shen,Wei Song,Luanhong Sun,Jaffer Saddique,Jiale Yang
A highly sensitive and selective electrochemical sensor based on porous Cu 2 ZnSnS 4 (CZTS) nanosheets is required for detecting ammonia-ammonium ions (NH 3 –NH 4 + ). Porous CZTS nanosheets synthesized by microwave irradiation method were characterized by Raman, XRD , SEM, TEM , BET, DLS and NH 3 -TPD. The porous nanosheets of CZTS-30 irradiated for 30 min with a surface area of 51.3 m 2 g −1 are significant material and possess many important active sites for NH 3 –NH 4 + oxidation . The electrode was made of a glassy carbon electrode (GCE) modified by CZTS-30. It was revealed by electrochemical measurements that there were two linear ranges for NH 3 –NH 4 + . One was the high concentration ranging from 1.0 mM to 600.0 mM ( R 2 = 0.9989) with a sensitivity of 8.29 μA mM −1 cm −2 , and the other was the low concentration between 0.1 mM and 1.0 mM ( R 2 = 0.9990) with a high sensitivity of 96.14 μA mM −1 cm −2 . It showed a detection limit of 30 μM (S/N = 10) for the sensor in NH 3 –NH 4 + solution mixed with 0.5 mM H 2 SO 4 at a fixed scan rate of 20 mV s −1 . This sensor also demonstrated desirable stability, reversibility and selectivity to NH 3 –NH 4 + . The CZTS/GCE is believed to become a new candidate structure for the electrochemical detection of NH 3 –NH 4 + .
研究领域:
环境科学
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材料科学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2015
·
IF 4.642
Shanlong Chen,Aichun Xu,Jie Tao,Haijun Tao,Yizhou Shen,Lumin Zhu,Jiajia Jiang,Tao Wang,Lei Pan
A novel in-situ and green method with the combination of TiCl4 pretreatment and solvothermal growth was proposed to prepare the Pt-free Cu2ZnSnS4 (CZTS) counter electrodes (CEs) on FTO substrate. It was found that TiCl4 pretreatment toward the substrates was crucial to a high quality and high efficiency CZTS film, which consists of nanosheet and nanoparticle structure. The highly crystallized nanosheets were assembled from kesterite structure CZTS nanocrystals, with an average diameter of 10–30 nm. The detailed morphology, crystal structure, and composition of the CZTS nanostructures were characterized by SEM, TEM, SAED, XRD, Raman, and EDS analysis, respectively. Electrocatalytic abilities of the films toward I–/I3– were verified through cyclic voltammograms (CV), electrochemical impedance spectroscopy (EIS), and Tafel polarization measurements. A maximum power conversion efficiency of 5.65% was achieved for a cell with CZTS 3, under 100 mW/cm2, which was higher than that of a cell with a commercial Pt counter electrode (4.96%). This high efficiency was mainly attributed to the good bonding strength between CZTS films and FTO substrate (RS = 4.41 Ω cm2), and higher electron-transfer process at the electrolyte/CE interface (high JSC), along with superior electrochemical catalytic ability (RCt = 2.40 Ω cm2). The in-situ prepared CZTS CEs are proven to be suitable for high efficiency Pt-free dye-sensitized solar cells (DSSCs), leading to significantly decrease of the cell cost and simplification of preparation process.
研究领域:
材料科学
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能源科学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Fan Ye,Cangshuang He,Tong Wu,Shuo Chen,Zhenghua Su,Xianghua Zhang,Xingmin Cai,Guangxing Liang
Kesterite Cu 2 ZnSnS 4 (CZTS) solar cells with CdS buffer layers have the problem of toxicity and cliff-like energy band diagram disfavoring higher photoelectric conversion efficiency (PCE (%)). The preparation method for ZnSnO buffer layers which enable Cd-free CZTS solar cells to reach the certified PCE (%) of 11.4 is limited to atomic layer deposition and sputtering deposition severely reduces PCE (%). Here, it is showed that sputtering deposited ZnSnN 2 is an efficient buffer layer for Cd-free CZTS solar cell, and without antireflection coating or additional passivation layers its champion PCE (%) has reached 10.00 which is comparable to the certified value. No buried junction and current blocking behavior are observed in the CZTS\ZnSnN 2 junctions. Elemental inter-diffusion is observed at the interface between CZTS and ZnSnN 2 . Most importantly, the energy band of ZnSnN 2 is well-matched with that of CZTS. The former straddles the latter. The conduction band offset is spike-like with the conduction band of ZnSnN 2 higher than that of CZTS, which effectively suppresses interface recombination and results in PCE (%) comparable to the certified value.
研究领域:
材料科学
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可再生能源
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光伏技术
✓ 已验证
DOI
高影响因子
RSC Advances
·
2014
·Vol. 5
·期 9
·6879-6885
·
IF 3.708
Ping An,Zhurong Liang,Xueqing Xu,Xin Wang,Hu Jin,Nan Wang,Junxia Wang,Furong Zhu
Pure phase kesterite Cu2ZnSnS4 (CZTS) nanocrystals (NCs) have been successfully synthesized via a heating-up method utilizing metal salts as cation sources and thioacetamide (TAA) as a coordinating sulphur precursor in combination with oleylamine (OAm) as a coordinating ligand and solvent. The slower release of H2S from the metal–TAA complexes, as compared with the commonly used sulphur powder, is crucial for control of the grain size and size distribution of the NCs. As dominating coordinating ligands, OAm led to Sn-rich nuclei and kesterite CZTS NCs. The formation of pure phase kesterite CZTS NCs depends significantly on the temperature and Zn2+/Sn4+ molar ratio of the reaction system. The formation mechanism of the pure phase kesterite CZTS NCs has been clarified taking into account the chemical potentials of the elements involved.
研究领域:
材料科学
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纳米技术
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化学工程
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产品关联
DOI
高影响因子
Scientific Reports
·
2018
·Vol. 8
·期 1
·1-13
·
IF 4.122
Zhang Xiaoyan,Xu You,Zhang Junjie,Dong Shuai,Shen Liming,Gupta Arunava,Bao Ningzhong
Two-dimensional (2D) semiconducting nanomaterials have generated much interest both because of fundamental scientific interest and technological applications arising from the unique properties in two dimensions. However, the colloidal synthesis of 2D quaternary chalcogenide nanomaterials remains a great challenge owing to the lack of intrinsic driving force for its anisotropic growth. 2D wurtzite Cu 2 ZnSnS 4 nanosheets (CZTS-NS) with high-energy (002) facets have been obtained for the first time via a simple one-pot thermal decomposition method. The CZTS-NS exhibits superior photoelectrochemical activity as compared to zero-dimensional CZTS nanospheres and comparable performance to Pt counter electrode for dye sensitized solar cells. The improved catalytic activity can be attributed to additional reactive catalytic sites and higher catalytic reactivity in high-energy (002) facets of 2D CZTS-NS. This is in accordance with the density functional theory (DFT) calculations, which indicates that the (002) facets of wurtzite CZTS-NS possess higher surface energy and exhibits remarkable reducibility for I 3
− ions. The developed synthetic method and findings will be helpful for the design and synthesis of 2D semiconducting nanomaterials, especially eco-friendly copper chalcogenide nanocrystals for energy harvesting and photoelectric applications.
研究领域:
材料科学
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能源技术
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纳米科技
·
光电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
OPTICAL MATERIALS
·
2022
·
IF 3.754
Ahmed Mourtada Elseman,M.M. Rashad
Aside from perovskite crystallization effectuation, the hole transport layer (HTL) acting a significant role in regulating charge transportation for inverted perovskite solar cells (PSCs). Herein, we show effective p-i-n PSCs based on solid solution-coating Kesterite Cu 2 ZnSnS 4 (CZTS) by one-step heating as HTL in an air (O 2 ) and nitrogen (N 2 ) environment. The spin-coating method is optimized to produce CZTS-HTL with the necessary phase purity and optimum film coverage. In comparison to the O 2 environment, photoluminescence (PL) tests show that the CZTS-HTL based on N 2 delivers better hole extraction. The N 2 annealing environment achieves a substantial power conversion efficiency (PCE) of 13.95% for CZTS-HTL based inverted PSC, compared to 9.43% for air-annealed devices.
研究领域:
材料科学
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能源科学
·
光伏技术
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2017
·Vol. 5
·期 12
·3035-3041
·
IF 5.256
Kaisi Liu,Bin Yao,Yongfeng Li,Zhanhui Ding,Hao Sun,Yuhong Jiang,Gang Wang,Daocheng Pan
Herein, we successfully prepared dithiocarbamate-based Cu2ZnSnS4 (CZTS) precursor solutions using various amino groups such as methylamine, ethylamine, propylamine, butylamine, amylamine, hexylamine, octylamine, and ethanolamine. These solutions exhibited a distinguishing wetting behavior, viscosity, and stability and could be used to fabricate CZTS thin films by a simple spin-coating and annealing process. We compared the thermogravimetric analysis of the precursor solutions and the XRD patterns of the as-prepared CZTS films and clear differences between the samples were observed. Furthermore, we fabricated high-quality CZTS films using the ethanoldithiocarbamate-based CZTS precursor solution, and the Cu2ZnSn(S,Se)4 solar cell with the best power conversion efficiency (7.66%) under 1.5 AM illumination was achieved.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2020
·Vol. 49
·期 10
·6208-6213
·
IF 1.774
Chen Ruilan,Cui Guonan,Yang Yanchun,Li Yuemin,Alata H.,Tian Xiao,Tegus O.
Abandoning the traditional deposition of as-prepared Cu 2 ZnSnS 4 (CZTS) thin films in a glove box, a modified thiol-based solution system suitable for deposition in air is described to further reduce device production costs. In this modified approach, metal salts and thiourea are used as the starting materials and are dissolved in a mixed solution of thioglycolic acid and 2-methoxyethanol, forming a homogeneous precursor solution. The as-deposited CZTS thin films are obtained by spin-coating the precursor solution in air, followed by the selenization process to form large-grained Cu 2 ZnSn(S,Se) 4 thin films. Combining the microstructural results with compositional analyses, the optimal selenization conditions for the Cu 2 ZnSn(S,Se) 4 absorber layer were found to be 540°C and 10 min.
研究领域:
材料科学
·
薄膜制备
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光电材料
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能源材料
·
半导体工艺
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Fan Yang,Ruixin Ma,Weishuang Zhao,Xiaoyong Zhang,Xiang Li
CZTS has been considered to be a perfect suitable replacement for CuInGaSe 2 (CIGS) which contains the rare elements. This work developed a novel route to fabricate CZTS absorber films based on the integration of non-vacuum and vacuum techniques. This was illustrated by first synthesizing CZTS powder with the method of solid-phase synthesis. Then three different compound targets made of CZTS precursors and pure CZTS powder were utilized to fabricate CZTS absorber films using Radio Frequency (RF) sputtering, followed by a sulfurization process. All synthesized samples were analyzed with respect to their crystal structure, vibrational property, morphology and chemical composition. The photoelectrical properties investigation of the sulfurized absorber films by UV-VIS spectrophotometer and Hall effect measurement can well meet the requirements for potential application in thin film solar cells, demonstrating this approach had great potential for CZTS solar cell production.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2014
·
IF 8.535
Yi-Xiu Wang,Ming Wei,Feng-Jia Fan,Tao-Tao Zhuang,Liang Wu,Shu-Hong Yu,Chang-Fei Zhu
Cu2ZnSnS4 (CZTS) nanocrystals with two typical structures, i.e., zinc blende (ZB)-derived and wurtzite (WZ) crystal frameworks, have been selectively synthesized via a solution-based route. Initially, Cu2SnS3 (CTS) nanoparticles with two different phases, i.e., zinc blende- and wurtzite-derived, can be prepared with different S sources and temperatures. Afterward, addition of the Zn precursor to the CTS matrix results in the substitutions of Cu and Sn cations, yielding CZTS with desirable phases. This method can be extended to the synthesis of other similar quaternary chalcogenide nanocrystals. The cation exchange method described here provides a convenient approach for fine-tuning the nanocrystal’s cation ratio, which enables us to optimize the solar absorber layer compositions and get a power conversion efficiency of 2.89% in copper-poor and zinc-rich devices. The capability to synthetically access stable phases with controllable morphologies and compositions demonstrates that the developed cation exchange method is powerful as a manufacturing technique for photovoltaic devices.
研究领域:
材料科学
·
太阳能电池技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）