通过非卤化溶剂加工的简单固体添加剂实现形态调节,用于高效有机太阳能电池

IF 10.7 Q1 CHEMISTRY, PHYSICAL EcoMat Pub Date : 2024-01-24 DOI:10.1002/eom2.12436
Muhammad Haris, Du Hyeon Ryu, Zakir Ullah, Bong Joo Kang, Nam Joong Jeon, Seungjin Lee, Hang Ken Lee, Sang Kyu Lee, Jong-Cheol Lee, Hyung-Wook Kwon, Won Suk Shin, Chang Eun Song
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引用次数: 0

摘要

结构简单且易挥发的固体添加剂 1,4-二溴苯(DBrB)在功率转换效率(PCE)方面优于用 1,4-二碘苯和 1,4-二氯苯制造的有机太阳能电池(OSC)。基于 DBrB 优化光活性材料的二元 OSC 实现了 17.0% 的出色 PCE,这主要归功于通过改善分子间相互作用形成的三维互穿网络和光活性材料的有序排列。这种优化的形态实现了高效的电荷转移/传输,并抑制了电荷重组,从而同时提高了所有光伏参数。更重要的是,我们证明了非卤化溶剂处理的 DBrB 使 PM6:Y6-HU OSCs 的 PCE 达到了令人印象深刻的 18.6%,这是目前报道的二元 OSCs 的最高效率。这项研究表明,新型 DBrB 挥发性固体添加剂是优化形态的有效方法,从而提高了 OSC 的光伏性能。
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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Morphological modulation enabled by non-halogenated solvent-processed simple solid additives for high-efficiency organic solar cells

The simple-structural and volatile solid additive 1,4-dibromobenzene (DBrB) can outperform organic solar cells (OSCs) fabricated with 1,4-diiodobenzene and 1,4-dichlorobenzene in terms of power conversion efficiency (PCE). A remarkable PCE of 17.0% has been achieved in a binary OSC based on DBrB-optimized photoactive materials processed from non-halogenated solvents, which is mainly attributed to the formation of a three-dimensional interpenetrating network and the orderly arrangement of the photoactive materials by improving the intermolecular interaction. This optimized morphology enables efficient charge transfer/transport as well as suppressed charge recombination, resulting in the simultaneous increase in all photovoltaic parameters. More importantly, we demonstrate that non-halogenated solvent-processed DBrB enabled PM6:Y6-HU OSCs with an impressive PCE of 18.6%, which is the highest efficiency yet reported for binary OSCs. This study suggests that the novel DBrB volatile solid additive is an effective approach to optimizing the morphology and thereby improves the photovoltaic performance of OSCs.

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17.30
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审稿时长
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