通过光物理表征技术深入了解三元有机太阳能电池中的电荷动力学和重组过程

IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Current Opinion in Colloid & Interface Science Pub Date : 2024-09-18 DOI:10.1016/j.cocis.2024.101865
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引用次数: 0

摘要

在有机太阳能电池(OSCs)中加入第三种成分,即所谓的三元 OSCs,可提高设备的功率转换效率。这种提高归因于吸收光谱的拓宽、能级的调整以及活性层形态的积极变化,从而使功率转换效率(PCE)显著提高到 20.2%。目前的研究凸显了形态学在提高器件性能方面的关键作用。然而,要实现更高的效率,就必须改善电荷离解、平衡电荷传输并最大限度地减少能量损耗和重组,而这并非总能实现。本综述介绍了最常见的稳态技术(如光致发光)和先进的瞬态技术(如瞬态光电压和瞬态吸收光谱),以深入了解光伏电荷动态过程,从而促进 TOSCs 性能的提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Insights into charge dynamics and recombination processes in ternary organic solar cells through photophysical characterization techniques
The incorporation of a third component in organic solar cells (OSCs), the so-called ternary OSCs, has given rise to an increase in the power conversion efficiencies of the devices. This improvement has been assigned to the broadening of the absorption spectrum, the tuning of the energy levels, and positive changes in the morphology of the active layer, resulting in remarkable power conversion efficiencies (PCE) of up to 20.2 %. Current research highlights the crucial role of morphology in enhancing device performance. However, achieving higher efficiencies requires improved charge dissociation, balanced charge transport, and minimized energy loss and recombination, which is not always attained. This review describes the most common steady-state techniques, such as photoluminescence, and advanced transient techniques, such as transient photovoltage and transient absorption spectroscopy, to gain insights into the photovoltaic charge dynamic processes to contribute to the improvement of the performance of TOSCs.
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来源期刊
CiteScore
16.50
自引率
1.10%
发文量
74
审稿时长
11.3 weeks
期刊介绍: Current Opinion in Colloid and Interface Science (COCIS) is an international journal that focuses on the molecular and nanoscopic aspects of colloidal systems and interfaces in various scientific and technological fields. These include materials science, biologically-relevant systems, energy and environmental technologies, and industrial applications. Unlike primary journals, COCIS primarily serves as a guide for researchers, helping them navigate through the vast landscape of recently published literature. It critically analyzes the state of the art, identifies bottlenecks and unsolved issues, and proposes future developments. Moreover, COCIS emphasizes certain areas and papers that are considered particularly interesting and significant by the Editors and Section Editors. Its goal is to provide valuable insights and updates to the research community in these specialized areas.
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