Materials Today Energy
·
2022
·
IF 9.257
Xinlong Zheng,Daoxiong Wu,Yuhao Liu,Jing Li,Yingjie Yang,Wei Huang,Weifeng Liu,Yijun Shen,Xinlong Tian
The photocatalyst is a key component of efficient photocatalytic hydrogen evolution (PHE) via water splitting. Bournonite CuPbSbS 3 has a great application potential in solar-to-energy due to its tremendous semiconductor properties and earth-abundant components. Although CuPbSbS 3 has achieved the highest power conversion efficiency (PCE) of 2.65% in thin-film photovoltaics , its application in PHE via water splitting has been rarely studied. In this work, CuPbSbS 3 nanoflakes with dominate (002) facet is fabricated by a facile butyldithiocarbamate acid (BDCA) solution process, which exhibits a PHE rate of 250.8 μmol g −1 /h without any co-catalyst under simulated solar irradiation. Density functional theory calculations show that plentiful catalytic sites with low ΔG H∗ are responsible for the high hydrogen evolution reaction performance of CuPbSbS 3 . This study represents an effective approach to realize photovoltaic-to-photocatalyst hydrogen evolution of Cu-based quaternary chalcogenides .
研究领域:
材料科学
·
能源化学
·
理论计算
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2024
·
IF 16.8
Zhen Chen,Guiqiu Li,Xinlong Zheng,Yuhao Liu,Jun Dai,Bo Huang,Meng Xia,Lulu Yan,Qi Chen,Yijun Shen,Dong Wang,Meng Li,Wei Xiao,Xinlong Tian,Juanxiu Xiao
The polarization electric field feature of piezoelectric materials is greatly beneficial to enhance the separation and migration of photogenerated carriers. Herein, we propose a BaTiO 3 /CuPbSbS 3 (BTO/CPSS) heterostructure photocatalyst through the combination of hydrothermal and facile butyldithiocarbamate acid (BDCA) solution process, in which the catalytic degradation performance of BTO/CPSS can be effectively enhanced by the synergistic effect of piezoelectricity and semiconductor properties. Through dedicatedly adjusting the loading amount of CPSS, the Rhodamine B (RhB) degradation efficiency of BTO/CPSS achieves 9.33×10 −2 min −1 along with a strong catalyst stability, which is attributed to the prolonged charge life time due to the piezoelectricity of the optimal BTO/CPSS. Moreover, the heterostructure of BTO/CPSS and polarization effect of BTO can further enhance the separation of electron-hole pairs, which can provide stronger driving force for catalytic degradation.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Crystals
·
2023
·Vol. 13
·期 8
·1256
·
IF 2.7
Limei Lin,Rui Da,Chenqi Zheng,Ruibo Zeng,Junda Ding
CuPbSbS3has excellent photoelectric properties, such as high element abundance and optical absorption coefficient, and a suitable band gap, which is a material with the potential for absorbing layers of high-quality thin film solar cells. In addition, CuPbSbS3is a material with a three-dimensional structure, which can guide the carrier to transport in all directions, so its performance can be regulated in multiple dimensions. At present, the substrate structure is often used in efficient solar cells since this structure does not affect other functional layers when the absorption layer is subjected to harsh annealing conditions. However, there have been no reports of the substrate structure of CuPbSbS3solar cells so far. Therefore, in this work, CuPbSbS3films deposited on a stable substrate of molybdenum (Mo) were prepared with butyldithiocarbamic acid (BDCA) solution, and the preparation process of reaction mechanism was described in detail. It was found that the band gap of the CuPbSbS3thin film was 2.0 eV and the absorption coefficient was up to 105cm−1, which is expected to be applied to the top absorption layer material in laminated cells. Thus, we first built a Glass/Mo/CuPbSbS3/CdS/ZnO/ITO substrate structured solar cell. From this, a photoelectric conversion efficiency of 0.094% was achieved. This work provides a tentative exploration for the future development of substrate structured CuPbSbS3solar cells.
研究领域:
材料科学
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光伏技术
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半导体薄膜
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可再生能源
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Muyi Zhang,Yuhao Liu,Bo Yang,Xuetian Lin,Yue Lu,Jiajia Zheng,Chao Chen,Jiang Tang
CuPbSbS3 (bournonite) has emerged as a promising light-absorbing material for thin-film solar cells due to its attractive photophysical properties. The crystallinity of CuPbSbS3 films is a main challenge of achieving high power conversion efficiency. Herein, we perform a series of optimization strategies to enhance the crystallinity of CuPbSbS3 films, including adjusting the annealing temperature and reducing the carbon residue. The optimized CuPbSbS3 film acquires an enhanced crystallinity, and an optimal solar cell device based on it achieves a power conversion efficiency of 2.65% with good stability. This efficiency is the highest value for CuPbSbS3 solar cells up to now.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
PubMed
高影响因子
Nano Energy
·
2020
·
IF 16.602
Yuhao Liu,Bo Yang,Muyi Zhang,Bing Xia,Chao Chen,Xueping Liu,Jie Zhong,Zewen Xiao,Jiang Tang
The absorber layer is a key component of thin-film solar cells. Based-on the recently-proposed electronic dimensionality concept, a promising solar cell absorber material should be electronically high-dimensional, as is the case for all the mainstream absorbers, such as Si, GaAs, Cu(In,Ga)Se 2 , CdTe, and CH 3 NH 3 PbI 3 . In this work, we propose an electronically three-dimensional semiconductor, bournonite CuPbSbS 3 , as a prospective efficient solar cell absorber material. Our density functional theory calculations indicate that CuPbSbS 3 exhibits desired optoelectronic properties, such as a nearly direct bandgap, high optical absorption coefficients, appropriate p -type doping, and defect tolerance . Experimentally, we developed a butyldithiocarbamate acid (BDCA) solution process for depositing high-quality CuPbSbS 3 thin films and built the first CuPbSbS 3 thin film solar cells. Our CuPbSbS 3 -based solar cells achieved a preliminary power conversion efficiency of 2.23% (open circuit voltage of 699 mV), highlighting the potential of this semiconductor for thin film photovoltaics .
研究领域:
材料科学
·
能源科学
✓ 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）