Advanced Materials·· 5 小时前精选AI 评分70
晶格完整性抑制钾聚七嗪酰亚胺体相俘获，实现聚酯选择性光重整
Crystal Integrity Suppresses Bulk Trapping in Potassium Poly(Heptazine Imide) for Selective Polyester Photoreforming
AI 导读
作者用晶种熔盐重结晶制备了氰基含量更低、晶格相干性更高的钾聚七嗪酰亚胺（PHI-K）纳米晶，用于聚酯光重整。DFT 与瞬态吸收谱将氰基来源的占据态指认为体相空穴陷阱，缺陷抑制后激子相关吸收的平均衰减时间由 69.52 ps 延长至 984.72 ps。
推荐理由
通过晶格完整性抑制氰基缺陷陷阱，把激子相关吸收衰减从69.52 ps延长到984.72 ps，并给出聚酯光重整的碳收率与表观量子产率。
创新点
把氰基缺陷识别为体相空穴陷阱，并用晶种熔盐重结晶提升晶格完整性来抑制俘获，从而在保持空穴极化的同时提高聚酯光重整的选择性。
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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