MATERIALS CHEMISTRY AND PHYSICS
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2026
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IF 5.2
Xuanrui Zhang,Peixuan Jin,Shunxing Liang,Weitong Cai
Cu 2 ZnSnS 4 (CZTS) is a promising candidate material for photovoltaic applications, sodium doping is crucial for improving the crystalline quality and performance of CZTS thin films. This study systematically investigated the effects of sodium dopant type, such as NaCl, NaHCO 3 , and NaOH, doping concentration at specific levels of 0, 3, 6, 9, and 12 at.%, and doping method, including precursor solution doping and post-deposition doping, on the microstructure and optical properties of CZTS thin films. Research findings indicate that NaHCO 3 serves as the optimal sodium source, effectively promoting grain growth while suppressing secondary phase formation. The film with 6 at.% doping concentration achieves optimal properties, including a maximum grain size of 57 nm and a near-ideal stoichiometry with Cu/Zn and S/Zn ratios of 2.38 and 4.90, alongside significantly enhanced surface compactness. The sodium doping in the precursor solution enhances crystallinity but tends to introduce secondary phases, whereas post-doping of the precursor film better preserves phase purity and elemental stability, albeit with a slight decrease in crystallinity.
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高影响因子
OPTICAL MATERIALS
·
2021
·
IF 3.08
Yunpeng Wang,Ruiting Hao,Jie Guo,Xiaoming Li,Shuiliu Fang,Huimin Liu,Shuaihui Sun
In this paper, magnesium was successfully introduced into CZTS using the DMF-based solution method, and CZMTS solar cell was prepared. The effects of Mg doping on the morphology, crystal structure, and electronic properties of the CZTS absorber were investigated in detail. The crystal structure of the CZMTS absorber and the chemical valence states of the other elements (Cu, Zn, Sn, and S) were not changed as shown by XRD , Raman, and XPS analyses. The results show that Mg doping can improve the electronic properties and microstructure of CZTS absorbers, thus enhancing the PCE from 2.91% to 4.10%. This performance enhancement is associated with good crystal quality, reduced cation-disordering defects, and high external quantum efficiency at the longwave region caused less recombination and open circuit voltage loss. Therefore, Mg doping has a positive effect on improving the performance of CZTS solar cells.
研究领域:
材料科学
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能源科学
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DOI
高影响因子
Chemistry-An Asian Journal
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2014
·Vol. 9
·期 8
·2309-2316
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IF 3.935
Qun Luo,Yongquan Zeng,Liwei Chen,Changqi Ma
Graphical How does your wurtzite-CZTS grow? The crystal growth mechanism of wurtzite Cu 2 ZnSnS 4 (WZ-CZTS) has been investigated by using time-dependent XRD patterns, TEM images, and absorption spectra analysis. The formation process of WZ-CZTS nanocrystals involves four steps: reduction of Cu 2+ to element Cu, nucleation of Cu 7 S 4 , nucleation and growth of WZ-CZTS on the basal planes of Cu 7 S 4 , and phase transformation from Cu 7 S 4 to WZ-CZTS over about 5 min. en This link goes to a English section zh This link goes to a English section Wurtzite Cu 2 ZnSnS 4 (WZ-CZTS) has been controllably synthesized through a hot-injection route. The crystal-growth mechanism of WZ-CZTS has been investigated by using time-dependent XRD patterns, TEM images, and absorption spectra analysis, and revealed that WZ-CZTS nucleated and grew from monoclinic Cu 7 S 4 nanocrystals through phase transformation of Cu 7 S 4 to WZ-CZTS within 5 min. The synthesis processes are dependent on precursor concentration, reaction temperature, reaction time, organic ligand, and sulfur source and have been studied in detail. It was revealed that the width of the WZ-CZTS nanocrystals was mainly controlled by the precursor concentration, which determines the diameter of Cu 7 S 4 . The length could be regulated by the ratio of dodecanethiol (DDT) to oleylamine (OLA) and reaction time. en This link goes to a English section zh This link goes to a English section 1
研究领域:
材料科学
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化学
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DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2020
·Vol. 8
·期 10
·3491-3497
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IF 7.059
Wen Li,Da Xiong,Meilin Xie,Chao Luo,Xiankan Zeng,Yue Gao,Bolin Guo,Cheng Yan,Fengjun Chun,Zhihao Zhu,Xiaoqiang Fan,Weili Deng,Weiqing Yang
Nontoxic self-powered ZnO-based photodetectors are highly desired to meet the great demand for sensing, communication, and imaging applications, while directionally manipulating the confined photocarrier transport is critical to the enhancement in the photodetection performance. Herein, we demonstrated a highly c-axis-oriented Cu2ZnSnS4/ZnO (CZTS/ZnO) photodetector with coaxially enhanced photocarrier transport. This CZTS/ZnO photodetector delivers remarkable 31 times higher photocurrent mainly ascribed to the coaxially enhanced photocarrier transport in the vertically directed ZnO arrays through the nanoconfinement effect along with the substantially enhanced incident photon absorption of length-optimized ZnO nanorods (NRs). Furthermore, this photodetector delivers a high responsivity of 1.1 μA W−1, fast rise time of 600 ms, and decay time of 600 ms as well as good stability with no distinct photocurrent decay after 2500 cycles. This study will open up a coaxially enhanced photocarrier transport way to substantially improve the photodetection performance and may promote the development of next-generation optoelectronic devices.
研究领域:
光电子学
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材料科学
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纳米技术
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光电探测
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半导体物理
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DOI
高影响因子
Nano-Micro Letters
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2025
·Vol. 17
·期 1
·1-19
·
IF 36.3
Abbas Muhammad,Chen Shuo,Li Zhidong,Ishaq Muhammad,Zheng Zhuanghao,Hu Juguang,Su Zhenghua,Li Yanbo,Ding Liming,Liang Guangxing
Despite being an excellent candidate for a photocathode, Cu 2 ZnSnS 4 (CZTS) performance is limited by suboptimal bulk and interfacial charge carrier dynamics. In this work, we introduce a facile and versatile CZTS precursor seed layer engineering technique, which significantly enhances crystal growth and mitigates detrimental defects in the post-sulfurized CZTS light-absorbing films. This effective optimization of defects and charge carrier dynamics results in a highly efficient CZTS/CdS/TiO 2 /Pt thin-film photocathode, achieving a record half-cell solar-to-hydrogen (HC-STH) conversion efficiency of 9.91%. Additionally, the photocathode exhibits a highest photocurrent density ( J ph ) of 29.44 mA cm −2 (at 0 V RHE ) and favorable onset potential ( V on ) of 0.73 V RHE . Furthermore, our CTZS photocathode demonstrates a remarkable J ph of 16.54 mA cm −2 and HC-STH efficiency of 2.56% in natural seawater, followed by an impressive unbiased STH efficiency of 2.20% in a CZTS-BiVO 4 tandem cell. The scalability of this approach is underscored by the successful fabrication of a 4 × 4 cm 2 module, highlighting its significant potential for practical, unbiased in situ solar seawater splitting applications.
研究领域:
材料科学
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能源转换技术
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光催化
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DOI
PubMed
高影响因子
POLYHEDRON
·
2014
·
IF 2.047
Kentaro Abe,Heping Shen,Xin Li,Lin Zhao,Xingyue Zhao,Jianbao Li,Mitsumasa Iwamoto,Hong Lin
Cu 2 ZnSnS 4 (CZTS) nanocrystals were synthesized successfully by two hot-injection methods, for which it was found that the temperature for sulfur precursor injection is an important factor to determine the morphology of nanocrystals. Injection carried out at a lower temperature lead to more homogeneous samples. Pure kesterite CZTS with diameter of about 15–20 nm was achieved confirmed by comprehensive characterizations including TEM, XRD, Raman, and XPS. Besides, CZTS nanocrystal based thin film, which was fabricated by solution process, exhibited a hole mobility of 4.3 × 10 −2 cm 2 /V-s. The film was then successfully incorporated into a Schottky solar cell, yielding an open circuit voltage of about 300 mV. It is notable that this was the first time that the completely nontoxic Schottky solar cell was achieved based on CZTS nanocrystal, which was fabricated completely under room temperature.
研究领域:
材料科学
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光伏技术
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纳米技术
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半导体物理
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DOI
高影响因子
Energy Storage Materials
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2016
·
IF 0
Hongli Wan,Gang Peng,Xiayin Yao,Jing Yang,Ping Cui,Xiaoxiong Xu
A graphene-based nanocomposite Cu 2 ZnSnS 4 /graphene (CZTS/graphene) is employed as a promising active material for all-solid-state lithium batteries for the first time. Meantime, lithium metal is used as an anode in order to maximize the energy density of the batteries with the sulfide electrolytes. The solid electrolyte bilayer, i.e. Li 10 GeP 2 S 12 and 70% Li 2 S–29% P 2 S 5 –1% P 2 O 5 , is designed, where 70% Li 2 S–29% P 2 S 5 –1% P 2 O 5 is used as the interface with lithium metal for the purpose of avoiding the reduction reaction with Li 10 GeP 2 S 12 . CZTS/graphene nanocomposites, with the CZTS nanoparticles uniformly anchored on the graphene nanosheets , are prepared by a simple hydrothermal reaction . The unique structure endows significantly reduced lithium ion diffusion lengths in CZTS nanoparticles as well as intimate contact between CZTS nanoparticles and sulfide electrolytes, leading to favorable lithium ionic and electronic conduction pathways. The results reveal that the CZTS/graphene-21 in all-solid-state lithium batteries shows the discharge capacity of 645.4 mA h g −1 after 50 cycles at 50 mA g −1 , corresponding to a very high energy density of 346.2 W h kg −1 . Even at high current densities of 100 and 1000 mA g −1 , the CZTS/graphene-21 can still deliver the discharge specific capacities as high as 544.6 and 233.9 mA h g −1 after 100 and 300 cycles, respectively.
研究领域:
材料科学
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能源存储与转换
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DOI
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2022
·Vol. 33
·期 10
·7900-7912
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IF 2.779
Hu Xuemei,Bao Jianqin,Qiao Junqiang
We report the experimental realization of using copper zinc tin sulfide (Cu 2 ZnSnS 4 ) material for sonocatalytic application for the first time. Hierarchical Cu 2 ZnSnS 4 microspheres were synthesized via a facile one-pot hydrothermal method and characterized systematically. Aggregated Cu 2 ZnSnS 4 nanosheets with an average thickness of ~ 20 nm formed a highly open hierarchical structure. The hierarchical Cu 2 ZnSnS 4 microspheres displayed remarkable sonocatalytic activity both in Rhodamine B degradation and in Cr(VI) reduction. The detailed sonocatalytic experiments revealed that Rhodamine B dye degraded up to 96.4% in 14 min and Cr(VI) reduced up to 98.7% in 10 min and both Rhodamine B degradation and Cr(VI) reduction followed pseudo-first-order kinetics. The reusability tests confirmed that the hierarchical CZTS microspheres have proper stability after 4 consecutive cycles. Moreover, the effects of initial dye concentration, various scavengers, and oxidants on the sonocatalytic RhB degradation process have also been investigated. Furthermore, the plausible mechanism of the sonocatalytic degradation in the presence of hierarchical CZTS microspheres was proposed.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2015
·Vol. 40
·期 46
·15933-15939
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IF 3.313
Aichun Xu,Haijun Tao,Shanlong Chen,Lumin Zhu,Yuan Zhao,Jiajia Jiang,Lei Pan,Jie Tao
A new strategy was proposed to improve the efficiency of Cu 2 ZnSnS 4 (CZTS) sensitized solar cell by utilizing thiol reduced graphene oxide (TrGO) to replace conventional linker molecule, mercaptopropionic acid (MPA). TiO 2 -TrGO-CZTS composite structure formed via the remaining carboxyl and exposing thiol groups in TrGO, which guaranteed stable links between TiO 2 and CZTS. Based on the fabrication of TiO 2 -TrGO-CZTS composite electrode, CZTS sensitized solar device was assembled. Besides, TiO 2 -hydrazine hydrate reduced graphene oxide (HrGO)-CZTS and TiO 2 -MPA-CZTS electrodes as well as the devices were also constructed. Upon measuring the photoelectrochemical and photoelectric performance, it was found that the highest power conversion efficiency of 0.133% was obtained in the case of TiO 2 -TrGO-CZTS, which was enhanced by 27% and 28% compared to HrGO and MPA decorated devices, respectively. The improvement of photoelectric performance was mainly attributed to more excited electrons and less recombined charge.
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高影响因子
APPLIED SURFACE SCIENCE
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2017
·
IF 3.387
Hui Chen,Jinfeng Wang,Chenchen Jia,Junpeng Mou,Lei Zhu
For the purpose of increasing the power conversion efficiency (PCE) meanwhile decreasing the cost of dye-sensitized solar cell (DSSC), Cu 2 ZnSnS 4 - multiwall carbon nanotubes (CZTS-MWCNTs) nanohybrid Pt-free counter electrode (CE) was prepared via a facile fabricating route. In brief, CZTS nanoparticles were synthesized by a solvothermal method and the composite film was fabricated by spin coating the aqueous solution of the composite. The short-circuit current density and PCE of the DSSC with CZTS-MWCNTs CE were found to be 16.62 mA cm −2 and 9.04%, respectively. But the corresponding values were 15.42 mA cm −2 and 8.74% for a DSSC with a pure Pt-CE. This is owing to the synergistic effect of the intrinsic superior electrocatalytic activity of the CZTS nanoparticles and highly specific surface area and high electrical conductivity of the MWCNTs . The presence and distribution of CZTS-MWCNTs on the CE were characterized by X-Ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM), respectively. Cyclic voltammetry (CV) and electrochemical impedance spectra (EIS) were examined for confirming the high electrocatalytic efficiency of this nanohybrid system.
研究领域:
材料科学
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能源化学
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纳米技术
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电化学
·
光伏器件
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2016
·
IF 8.328
Yawei Yang,Wenxiu Que,Xinyu Zhang,Xingtian Yin,Yonglei Xing,Meidan Que,Hongyang Zhao,Yaping Du
A chloroform-assistant Se dissolution in oleylamine without trioctylphosphine and alkylthiol as the green precursor was used for facile and robust synthesis of quaternary selenide nanocrystals. The S 2− modified hydrophilic Cu 2 ZnSnS 4 and Cu 2 ZnSnSe 4 nanocrystals were first prepared by a one-pot thermal decomposition route, followed by a bi-phase hydrophilic treatment process. As a proof of concept, the as-obtained hydrophilic nanocrystals were hybridized with ZnO microspheres as photosensitizers to achieve visible light-driven photocatalytic application; on the other hand, hybridized with NaYF 4 : Yb, Tm microplates to achieve near-infrared light-driven photocatalytic application. These photosensitized hybrids as photocatalysts expanded the light absorption from ultraviolet to visible even near-infrared region, which showed excellent photocatalytic Rhodamine B degradation under visible and near-infrared irradiation compared to pure ZnO and NaYF 4 : Yb, Tm, respectively. Therefore, these hydrophilic Cu 2 ZnSnS 4 and Cu 2 ZnSnSe 4 nanocrystals are proved as efficient photocatalytic sensitizers due to the efficient utilization of the visible light and emissions upconverted from near-infrared light.
研究领域:
材料科学
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化学
·
环境科学
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DOI
高影响因子
ADVANCED MATERIALS
·
2026
·
IF 29.1
Hang Geng,Jingwen Cao,Jialiang Huang,Ao Wang,Zuoyun Wang,Xiaojie Yuan,Yidong Liu,Chenghan Zhao,Jialin Cong,Kaiwen Sun,Xiaojing Hao
Wide-bandgap kesterite Cu 2 ZnSnS 4 (CZTS) is a promising top-cell candidate for tandem photovoltaics owing to its earth-abundant composition and low-cost solution processability. However, its progress is hindered by a large open-circuit voltage ( V OC ) deficit. A key origin lies in the defects generated during sulfurization. For solution-processed CZTS absorbers, an intermediate-phase pathway involving Cu 2 SnS 3 and other intermediate phases alters the local chemical environment and crystallization behavior, leading to substantial defects and carrier recombination. Here, we develop a bilayer composition-modulated sulfurization (BCMS) strategy using a pre-stabilized Cu-rich bottom layer and a Cu-poor upper layer to regulate Cu redistribution during sulfurization. The BCMS strategy suppresses Cu 2 SnS 3 and favors the direct transformation pathway, while transforming the crystallization from surface-dominated growth to a more synchronized process across the film. The regulation of phase evolution and crystallization suppresses bulk and interface defects, reducing carrier recombination. As a result, a power conversion efficiency of 11.05% with a V OC of 747.64 mV is achieved, representing the lowest V OC deficit reported for solution-processed wide-bandgap (>1.5 eV) CZTS solar cells. The coordinated regulation of phase evolution and crystallization dynamics highlights pathway engineering as an effective strategy for defects and voltage-loss management in kesterite materials, with implications for other chalcogenide semiconductors.
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高影响因子
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