Advanced Materials·· 2 天前精选AI 评分67
硫锁与氯化协同调控小分子受体，有机太阳能电池效率达21.3%
Sulfur Locking and Chlorination Synergistically Enable Efficient Charge Transport and Low Nonradiative Energy Loss in Organic Solar Cells
AI 导读
研究提出基于硫锁与氯化的分步分子工程策略，同时调控小分子受体的分子构象、分子间堆积与激发态性质。硫锁改善构象与堆积以增强激子扩散和电荷传输，后续氯化通过额外的Cl···S接触强化分子间相互作用，形成更紧密的π–π堆积与更高结晶有序度。
推荐理由
通过硫锁与氯化两步分子工程同时调控给受体堆积与激发态性质，为小分子受体兼顾电荷传输与低非辐射损耗提供了一条可迁移的设计路径。
创新点
将硫锁与氯化分步组合，在同一小分子受体上同时优化分子间堆积与激发态性质，使二元器件在保持约0.19 eV低非辐射损耗的同时实现20.0%效率，并可作为第三组分进一步提升三元器件效率。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Advanced Materials · doi.org
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