Статья

Thermal Modulation of Exciton Recombination for High‐Temperature Ultra‐Long Afterglow

Ping JiangDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaBingbing DingDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaJiayi YaoDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaLei ZhouDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaZhenyi HeDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaZizhao HuangDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaChenjia YinDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaHe TianDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 ChinaXiang MaDepartment Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materi obiology and Dynamic Chemistry Institute of Fine Chemicals, School of Chemistry and Molecular Engineering East China University of Science & Technology Meilong Road 130 Shanghai 200237 China

2024en

ABI

Аннотация

Developing smart materials with tunable high-temperature afterglow (HTA) luminescence remains a formidable challenge. This study presents a metal-free doping system using boric acid as matrix and polycyclic aromatic hydrocarbons as dopants. This composition achieves dynamically tunable afterglow combining a bright blue HTA lasting for over ten seconds even at 150 °C and an ultra-long yellow room-temperature phosphorescence below 110 °C. The observed HTA is attributed to the thermally released exciton recombination within the dopant molecules, which shows excellent temperature tolerance compared to traditional triplet related phosphorescence and thermally activated delayed fluorescence. The planarity of dopants is extensively investigated playing a pivotal role in modulating Dexter electron transfer (ET) for capturing released electrons and thereby affecting the overall performance of tunable HTA. This work provides an efficient and universal doping strategy to engineer tunable HTA through the synergistic action of thermally releasing electrons, Dexter ET and exciton recombination.

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Идентификаторы

DOI: 10.1002/anie.202421036

Цитирования и источники

Цитирований: 2Использованных источников: 0

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