Understanding efficiency losses from radiative and nonradiative recombination in Cu2ZnSn(S,Se)4 solar cells [PDF]
Nature CommunicationsThe photovoltaic performance of Cu2ZnSn(S,Se)4 is limited by open-circuit voltage losses (ΔV OC) in the radiative (ΔV OC Rad) and non-radiative (ΔV OC Nrad) limits, due to sub-bandgap absorption and deep defects, respectively.
Shreyash S. Hadke +7 more
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Regulating properties of Cu 2 ZnSn(S, Se) 4 absorber layer via the extra tiny Mg 2+ [PDF]
Micro and Nano Letters, 2023 Extra cation incorporations have been proved to enhance the properties of Cu2ZnSn(S, Se)4 materials, and help to obtain high‐efficiency solar cells. In this work, the authors study the influence of the extra tiny Mg2+ doping on the properties of Cu2ZnSn ...
Yanchun Yang, Guonan Cui, Xiao Tian
exaly +3 more sources
Mapping Shunting Paths at the Surface of Cu2ZnSn(S,Se)4 Films via Energy-Filtered Photoemission Microscopy [PDF]
iScience, 2018 Summary: The performance of Cu2ZnSn(S,Se)4 thin-film solar cells, commonly referred to as kesterite or CZTSSe, is limited by open-circuit voltage (VOC) values less than 60% of the maximum theoretical limit. In the present study, we employ energy-filtered
Devendra Tiwari +7 more
doaj +12 more sources
Influence of phonon anharmonicity on Raman spectra of Cu2ZnSn(S,Se)4 polycrystalline thin films through computational study [PDF]
Scientific ReportsCu2ZnSn(S,Se)4 (CZT(S,Se)) thin films exhibit the characteristics necessary to be effective absorbers in solar cells. In this report, the room temperature experimental Raman scattering spectra, recorded at different excitation wavelengths, are ...
Yurii A. Romaniuk +10 more
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Flexible Cu2ZnSn(S,Se)4 solar cells with over 10% efficiency and methods of enlarging the cell area [PDF]
Nature Communications, 2019 Flexibility and homogeneity are preferred properties for the kesterite solar modules to compete with silicon counterparts. Here, Yang et al. achieve these properties by designing a thin and multi-layered precursor structure and at the same time increase ...
Kee-Jeong Yang +14 more
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Molecular Cluster‐Controlled Quasi‐Epitaxial CZTSSe/CdS Heterojunction Enables 12.3% Efficiency of Flexible Solar Cells [PDF]
Advanced ScienceFlexible Cu2ZnSn(S,Se)4 (CZTSSe) solar cells have garnered significant attention in photovoltaics. Interface defects in CZTSSe/CdS heterojunctions drive carrier recombination, leading to substantial open‐circuit voltage (VOC) loss.
Weihao Xie +8 more
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Doping of Sb into Cu2ZnSn(S,Se)4 absorber layer via Se&Sb2Se3 co-selenization strategy for enhancing open-circuit voltage of kesterite solar cells [PDF]
Frontiers in Chemistry, 2022 Kesterite-structured Cu2ZnSn(S,Se)4 (CZTSSe) thin film photovoltaics have attracted considerable attention in recent years because of its low-cost and eco-friendly raw material, as well as high theoretical conversion efficiency. However, its photovoltaic
Benhui Zhao +4 more
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Strain tuning of native defect populations: The case of Cu2ZnSn(S,Se)4 [PDF]
APL Materials, 2014 Native defects are ubiquitous especially in compound semiconductors and dominate the properties of many materials. Applying first principles calculations, we propose a novel strategy to tune native defect populations in Cu2ZnSn(S,Se)4 which is an ...
Junyi Zhu +2 more
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Impact of Na Doping on the Carrier Transport Path in Polycrystalline Flexible Cu2ZnSn(S,Se)4 Solar Cells [PDF]
Advanced Science, 2020 It is well‐known that the alkali doping of polycrystalline Cu2ZnSn(S,Se)4 (CZTSSe) and Cu(In,Ga)(Se,S)2 has a beneficial influence on the device performance and there are various hypotheses about the principles of performance improvement.
Woo‐Lim Jeong +10 more
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Li Incorporation Induces Surface Chemical Disorder in Solution‐Processed Cu2ZnSn(S,Se)4
Advanced Materials InterfacesLithium incorporation into Cu2ZnSn(S,Se)4 (CZTSSe) absorbers has led to improvements in power conversion efficiencies (PCEs), often linked to changes in doping density and improvement in grain growth.
Alice Sheppard +9 more
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