Surface Passivation Using N-Type Organic Semiconductor by One-Step Method in Two-Dimensional Perovskite Solar Cells
Helong Wang,Guanchen Liu,Chongyang Xu,Fanming Zeng,Xiaoyin Xie,Sheng Wu +5 more
- Vol. 11, Iss: 8, pp 933
TLDR
In this paper, the n-type semiconductor of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is dissolved in chlorobenzene (CB) for the surface passivation during the spin-coating process for depositing the two-dimensional (2D) perovskite film.Abstract:
Surface passivation, which has been intensively studied recently, is essential for the perovskite solar cells (PSCs), due to the intrinsic defects in perovskite crystal. A series of chemical or physical methods have been published for passivating the defects of perovskites, which effectively suppressed the charge recombination and enhanced the photovoltaic performance. In this study, the n-type semiconductor of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) is dissolved in chlorobenzene (CB) for the surface passivation during the spin-coating process for depositing the two-dimensional (2D) perovskite film. This approach simplifies the fabrication process of 2D PSCs and benefits the film quality. As a result, the defects of perovskite film are effectively passivated by this method. A better perovskite/PCBM heterojunction is generated, exhibiting an increased film coverage and improved film morphology of PCBM. It is found that this technology results in an improved electron transporting performance as well as suppressed charge recombination for electron transport layer. As a result, PSCs based on the one-step formed perovskite/PCBM heterojunctions exhibit the optimized power conversion efficiency of 15.69% which is about 37% higher than that of regular perovskite devices. The device environmental stability is also enhanced due to the quality improved electron transport layer.read more
Citations
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Tackling the circular economy challenges-composites recycling: used tyres, wind turbine blades, and solar panels
Kinga Korniejenko,Barbara Kozub,Agnieszka Bąk,P. Balamurugan,Marimuthu Uthayakumar,Gabriel Furtos +5 more
TL;DR: In this paper, the authors present three case studies related to the recycling of products manufactured from composites: used tyres, wind turbine blades, and solar panels, and show the advantages and disadvantages of currently applied methods for multilateral composite utilisation and presents further trends in composite recycling.
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Bio-Inspired Graphitic Carbon-Based Large-Area (10 × 10 cm2) Perovskite Solar Cells: Stability Assessments under Indoor, Outdoor, and Water-Soaked Conditions.
Selvakumar Pitchaiya,Nandhakumar Eswaramoorthy,Venkatraman Madurai Ramakrishnan,Muthukumarasamy Natarajan,Dhayalan Velauthapillai +4 more
TL;DR: In this article , a single-cell carbon-based perovskite solar cell (C-PSC) was demonstrated for the first time, delivering a maximum PCE of 6.32%.
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Improving the photovoltaic performance of inverted perovskite solar cells via manipulating the molecular packing structure of PCBM
TL;DR: In this paper , the molecular packing structure of solution-processed phenyl-C61-butyric acid methyl ester (PCBM) thin film was manipulated by varying the volume ratio of chlorobenzene (CB) to bromobenzenes (BrB) from 100:0 to 50:50, which largely influences the device performance of the PCBM/perovskite heterojunction solar cells.
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Defect and doping concentration study with series and shunt resistance influence on graphene modified perovskite solar cell: A numerical investigation in SCAPS-1D framework
TL;DR: In this article , the authors used simulation concept to elucidate the influence of using graphene as a surface passivation material in perovskite solar cells, and evaluated the effect of graphene in PSCs.
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