期刊导读
Journal Guide
1
Full-color programmable high temperature afterglow polymers based on single-molecule emitters
来源期刊：Nature Communications
摘要：
高温余辉有机非晶材料突破了传统室温磷光材料的工作温度限制，拓展了其潜在应用范围。然而，从单一发光分子实现可调谐的高温余辉仍是一项巨大挑战。本文通过主客体锚定策略结合单键转子，成功实现了高效磷光与高温下可调谐余辉的协同调控。该材料展现出波长可调的余辉特性：在升温过程中（298 K 至 473 K），其色度坐标从 (0.24, 0.47) 移至 (0.18, 0.20)，余辉寿命从 836 ms 缩短至 6.34 ms。理论研究表明，磷光体的激发态构象随温度发生转变，从而诱导出波长可调的高温余辉现象。本工作为设计具有可调谐高温余辉发射性能的非晶聚合物提供了一种新策略，推动了可实现高温可调余辉发射的有机磷光材料的发展。
（信息以英文摘要为准）
2
文章介绍：
有机磷光材料因长寿命、大斯托克斯位移等特性，在防伪和传感领域应用潜力巨大，但高温下分子热振动易猝灭发光。此前研究多聚焦室温环境，限制了其应用场景。马骧团队采用主-客体锚定策略：以富氢键的聚丙烯酰胺为基质，含单键转子的三苯胺衍生物（TPCS-4）作为发光单元，成功开发了一种可编程高温余辉聚合物。得益于氢键网络对分子热运动的大幅度抑制，该材料在室温下磷光发射寿命长达836 ms，发光量子产率高达61.7%，且在423K高温下仍可以保持长达5秒的余辉。进一步研究表明，TPCS-4中单键转子在高温下可以经历旋转从而驱动三重态激发态（T₁）构型转变，最终导致磷光波长蓝移。该研究打破了之前Kasha规则对于发光波长的限制，在单一发色团的条件下同时实现了高温耐受与波长可调（508nm蓝移至450nm）的动态余辉，拓宽了纯有机磷光材料的使用条件和应用场景。
文章的通讯作者为马骧教授和孙思宇博士，博士生徐卓然与黄宇峰为共同第一作者，研究工作得到了田禾院士的悉心指导。该研究得到了国家自然科学基金基础科学中心项目、国家杰出青年科学基金项目和国际合作重点项目等基金的支持。
期刊介绍
《Nature Communications》涵盖生命科学、物理、化学、地球科学等多领域。它聚焦高影响力、跨学科的创新研究，学术认可度高，影响因子长期稳居国际前列，为不同学科研究者提供了展示重要成果的平台，是全球科研界关注的核心开放获取期刊之一。
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Immunogenicity and safety of co-purified diphtheria, tetanus and acellular pertussis vaccine in 6-year-old Chinese children
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Structural basis of sodium ion-dependent carnitine transport by OCTN2
mTORC1 signaling in group 2 innate lymphoid cells coordinates neuro-immune crosstalk in allergic lung inflammation
Chain-ordered Pt atoms with delocalized electronic structure for improved hydrogen production
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Charge transfer in triphenylamine–tetrazine covalent organic frameworks for solar-driven hydrogen peroxide production
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