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High-Performance Perovskite Solar Cells with Zwitterion-Capped-ZnO Quantum Dots as Electron Transport Layer and nH_(4)X(X=f,Cl,Br)Assisted Interfacial Engineering

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Energy & Environmental materials 2024年第5期7卷 321-331页

作者： Rashmi Runjhun Essa A.Alharbi Zygmunt Druzyński Anurag Krishna ma■gorzata Wolska-Pietkiewicz ViktorŠkorjanc Thomas P.Baumeler George Kakavelakis felix Eickemeyer mounir Mensi Shaik M.Zakeeruddin Michael Graetzel Janusz Lewiński Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44/5201-224 WarsawPoland Laboratory of Photonics and Interfaces Institute of Chemical Sciences and EngineeringSchool of Basic SciencesEcole Polytechnique Fédérale de LausanneCH-1015 LausanneSwitzerland Microelectronics and Semiconductors Institute King Abdulaziz City for Science and Technology(KACST)11442 RiyadhSaudi Arabia faculty of Chemistry Warsaw University of TechnologyNoakowskiego 300-664 WarsawPoland Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de LausanneValais WallisCH-1951 SionSwitzerland

The systematic advances in the power conversion efficiency(PCE)and stability of perovskite solar cells(PSCs)have been driven by the developments of perovskite materials,electron transport layer(ETL)materials,and interfacial passivation between the relevant *** zinc oxide(ZnO)is a promising ETL in thin film photovoltaics,it is still highly desirable to develop novel synthetic methods that allow both fine-tuning the versatility of ZnO nanomaterials and improving the ZnO/perovskite *** various inorganic and organic additives,zwitterions have been effectively utilized to passivate the perovskite *** this vein,we develop novel,well-characterized betaine-coated ZnO QDs and use them as an ETL in the planar n-i-p PSC architecture,combining the ZnO QDs-based ETL with the ZnO/perovskite interface passivation by a series of ammonium halides(nH_(4)X,where X=f,Cl,Br).The champion device with the nH4f passivation achieves one of the highest performances reported for ZnO-based PSCs,exhibiting a maximum PCE of~22%with a high fill factor of 80.3%and competitive stability,retaining~78%of its initial PCE under 1 Sun illumination with maximum power tracking for 250 h.

关键词： interface passivations perovskites quantum dots solar cells zinc oxide zwitterions

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Contribution at the Study of neuroprotective Properties of neuroglobin during Severe Chronic Glaucoma

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World Journal of neuroscience 2020年第1期10卷 42-67页

作者： Jean fidèle nnang Essone Tatiana Harly Mba Aki Angue mounir Belmalih Rosalie nkiéma Ludmila Betty Eke ndouo Emmanuel Anyunzoghe nathan Ekegue félix Ovono Abessolo Department of Physiology Faculty of Medicine and Health Sciences University of Health Sciences Owendo Libreville Gabon Physiological functional Exploration and Physical Medicine Services Owendo University Hospital Center Owendo Libreville Gabon Department of Ophthalmology Faculty of Medicine and Health Sciences University of Health Sciences Owendo Libreville Gabon Mother-Child University Hospital Center Libreville Gabon Department of Biochemistry-Chemistry Faculty of Medicine and Health Sciences University of Health Sciences Owendo Libreville Gabon Department of Epidemiology Biostatistics and Medical Informatics Faculty of Medicine and Health Sciences University of Health Sciences Owendo Libreville Gabon faculty of Pharmacy University of Health Sciences Owendo Libreville Gabon

Introduction: The mechanisms of overexpression of neuroglobin in patients with severe glaucoma (CG+) remain hypothetical. Objective: To study the anti-apoptotic, anti-hypoxic and anti-oxidant properties of neuroglobin in CG+. Population and Methods: The visual field, as well as plasma dosage of neuroglobin (Cmngb, ng/ml), hypoxia inductible factor-1alpha (CmHIf-1α, pg/ml), glutathione peroxidase (CmGpx, pg/ml), and cytochrome C oxidase (CmCyt C, pg/ml) were carried out in 45 CG+ and 45 controls (CG-). The chi-2 test compared the proportions, and Spearman’s test studied the correlations between quantitative variables (p Results: Cmngb was 4.1 in CG+, versus 2.3 in CG- (p = 1.52 × 10-5). CmGpx was 1144.7 in CG+, versus 752.8 in GC- (p = 0.0199). CmHIf-1α was 4.1 in CG+, versus 3.5 in CG- (p = 0.4530). CmCyt C was 2303.26 in CG+, versus 1750.44 in CG- (p = 0.0450). In CG+, there was a correlation between Cmngb and CmGpx (r = 0.417;p = 0.004), Cmngb and CmHIf-1α (r = 0.644;p = 1.8 × 10-6), and between CmHIf-1α and CmGpx (r = 0.447;p = 0.002), CmHIf-1α and CmCyt C (r = 0.371;p = 0.012). none correlation was found between Cmngb and CmCyt C (r = 0.126;p = 0.370), as well as CmGpx and CmCyt C (r = 0.102;p = 0.505). Conclusion: The variations of apoptosis, hypoxic, and oxidative stress biomarkers were found between CG+ and CG-, as well as their correlations, suggesting that neuroglobin overexpression is related to its anti-apoptotic, anti-oxidative, and anti-hypoxic properties.

关键词： Chronic Severe Glaucoma neuroglobin neuroprotective-Properties

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High-Performance Perovskite Solar Cells with Zwitterion-Capped-Zn0 Quantum Dots as Electron Transport Layer and nH4X（X=f,Cl,Br） Assisted Interfacial Engineering

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Energy & Environmental materials 2024年第5期 325-335页

作者： Rashmi Runjhun Essa A.Alharbi Zygmunt Druzynski Anurag Krishna ma?gorzata Wolska-Pietkiewicz Viktor ?korjanc Thomas P.Baumeler George Kakavelakis felix Eickemeyer mounir Mensi Shaik M.Zakeeruddin Michael Graetzel Janusz Lewinski Institute of Physical Chemistry Polish Academy of Sciences Laboratory of Photonics and Interfaces Institute of Chemical Sciences and Engineering School of Basic Sciences Ecole Polytechnique Fédérale de Lausanne Microelectronics and Semiconductors Institute King Abdulaziz City for Science and Technology (KACST) faculty of Chemistry Warsaw University of Technology Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne

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