Impact of Solvent Additives on Enhancing the Performance and Robustness of Green Solvent-Processed Indoor Organic Solar Cells

IF 6 3区 工程技术 Q2 ENERGY & FUELS
Solar RRL Pub Date : 2025-08-26 DOI:10.1002/solr.202500363
Anass Khodr, Ignacio Ballesteros García, Takeshi Watanabe, Hidehiro Sekimoto, Donia Fredj, Hasan Alkhatib, Sadok Ben Dkhil, Olivier Margeat, Christine Videlot-Ackermann, Carmen Maria Ruiz, Jörg Ackermann
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Abstract

The rapid growth of the Internet of Things increases the demand for efficient indoor organic photovoltaics (OPVs). This study introduces a novel TPD-3F:FCC-Cl blend, achieving power conversion efficiencies exceeding 20% and a near 1 V open-circuit voltage (Voc) under 2000Lx illumination. The study examines the blend's potential for indoor energy harvesting, focusing on processing under industrially relevant conditions. The effects of solvent additives, specifically tetralin and diphenyl ether (DPE), are evaluated using spin-coating and doctor-blading techniques under both inert and ambient conditions. The use of DPE as a greener additive significantly improves film uniformity, device reproducibility, and performance stability across varying light intensities and layer thicknesses. Structural analysis confirms favorable face-on orientation and enhanced crystallinity for FCC-Cl domains, with DPE-based formulations yielding the most uniform films. Reproducibility metrics further show DPE's superiority over traditional additives, making it promising for industrial-scale indoor OPV applications. The findings highlight the strong potential of the TPD-3F:FCC-Cl blend for high-efficiency, sustainable indoor OPVs, particularly when processed with non-halogenated solvents and scalable techniques like blade coating.

Abstract Image

溶剂添加剂对提高绿色溶剂处理室内有机太阳能电池性能和稳健性的影响
物联网的快速发展增加了对高效室内有机光伏(opv)的需求。本研究介绍了一种新型TPD-3F:FCC-Cl混合物,在2000Lx照明下实现了超过20%的功率转换效率和接近1v的开路电压(Voc)。该研究考察了这种混合物在室内能量收集方面的潜力,重点是在工业相关条件下的加工。溶剂添加剂,特别是四氢化萘和二苯基醚(DPE)的影响,评估了在惰性和环境条件下使用旋转涂层和医生叶片技术。DPE作为绿色添加剂的使用显著提高了薄膜的均匀性、器件的可重复性以及在不同光强和层厚度下的性能稳定性。结构分析证实了FCC-Cl结构域有利的正面取向和增强的结晶度,dpe基配方产生最均匀的薄膜。再现性指标进一步显示了DPE优于传统添加剂的优势,使其有望用于工业规模的室内OPV应用。研究结果强调了TPD-3F:FCC-Cl混合物在高效、可持续的室内opv方面的巨大潜力,特别是在使用非卤化溶剂和可扩展技术(如叶片涂层)处理时。
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来源期刊
Solar RRL
Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
12.10
自引率
6.30%
发文量
460
期刊介绍: Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.
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