Blade-Coated Carbon Electrode Perovskite Solar Cells to Exceed 20 Efficiency Through Protective Buffer Layers

Yaqing Li; Xiayao Lu; Yantao MeiChen DongDeepak Thrithamarassery GangadharanKong LiuZhijie WangShengchun QuMakhsud I. SaidaminovWeifeng ZhangFurui Tan

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Blade-Coated Carbon Electrode Perovskite Solar Cells to Exceed 20 Efficiency Through Protective Buffer Layers

机译：Blade-Coated Carbon Electrode Perovskite Solar Cells to Exceed 20 Efficiency Through Protective Buffer Layers

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Perovskite solar cells with carbon electrode have a commercial impactbecause of their facile scalability, low-cost, and stability. In these devices,it remains a challenge to design an efficient hole transport layer (HTL)for robust interfacing with perovskite on one side and carbon on another.Herein, an organic/inorganic double planar HTL is constructed based onpolythiophene (P3HT) and nickel oxide (NiOx) nanoparticles to addressthe named challenge. Through adding an alkyl ammonium bromide (CTAB)modified NiOx nanoparticle layer on P3HT, the planar HTL achieves acascade type-Ⅱ energy level alignment at the perovskite/HTL interfaces and apreferential ohmic contact at NiOx/carbon electrode, which greatly benefitsin charge collection while suppressing charge transfer recombination.Besides, compared with the single P3HT layer, the planar compositeenables a robust interfacial contact by protecting perovskite from beingcorroded by carbon paste during fabrication. As a result, the blade-coatedFA_(0.6)MA_(0.4)PbI_3 perovskite solar cells (fabricated in ambient air in fumehood) with carbon electrode deliver an efficiency of 20.14, the highestvalue for bladed coated carbon and perovskite solar cells, and withstand275 h maximum power point tracking in air without encapsulation (95efficiency retained).

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来源
《Advanced functional materials》 |2023年第34期|2301920.1-2301920.9|共9页
作者
Yaqing Li; Xiayao Lu; Yantao MeiChen DongDeepak Thrithamarassery GangadharanKong LiuZhijie WangShengchun QuMakhsud I. SaidaminovWeifeng ZhangFurui Tan;
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作者单位

Key Laboratory of Photovoltaic Materials and Laboratory ofLow-Dimensional Materials Science, School of Future TechnologyHenan UniversityZhengzhou 450046, P. R. China;

Department of Chemistry, Department of Electrical & ComputerEngineering and Centre for Advanced Materials and RelatedTechnologies (CAMTEC)University of VictoriaBritish Columbia V8P 5C2, Victoria 3010, Canada;

Key Laboratory of Semiconductor Materials Science, Beijing KeyLaboratory of Low Dimensional Semiconductor Materials and Devices,Institute of SemiconductorsChinese Academy of SciencesBeijing 100083, P. R. China;

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正文语种英语
中图分类无线电电子学、电信技术;工程材料学;
关键词
blade-coatings; buffer layers; carbon electrodes; mechanical contacts; perovskite solar cells;

Blade-Coated Carbon Electrode Perovskite Solar Cells to Exceed 20 Efficiency Through Protective Buffer Layers

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