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But so far, the photoluminescence quantum yield (PLQY) of most these solids is still relatively low and the persistent room\u2010temperature phosphorescence (p\u2010RTP) emission is relatively weak. To improve their PLQY and p\u2010RTP, pressing the powder into tablets is preliminarily proven to be an effective method, but the specific mechanism has not been fully elucidated yet. Herein, carboxymethyl <jats:italic>\u03b2<\/jats:italic>\u2010cyclodextrin (CM\u2010<jats:italic>\u03b2<\/jats:italic>\u2010CD) is chosen as the representative to solve the problem. The results show that the PLQY and p\u2010RTP lifetimes of the tablet of CM\u2010<jats:italic>\u03b2<\/jats:italic>\u2010CD are improved compared to the powder. By the mechanism of clustering\u2010triggered emission and average packing density\u2010promoted emission mechanism, it is demonstrated that the enhanced molecular interactions after compression is the key reason, resulting in the formation of cluster emission centers with stronger emission capabilities. CM\u2010<jats:italic>\u03b2<\/jats:italic>\u2010CD is proven to have excellent cell imaging and anti\u2010counterfeiting functions.<\/jats:p>","DOI":"10.1002\/cplu.202500230","type":"journal-article","created":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T04:10:23Z","timestamp":1747109423000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Clustering\u2010Triggered Emission of Carboxymethyl <i>\u03b2\u2010<\/i>Cyclodextrin Powder and Tablet"],"prefix":"10.1002","volume":"90","author":[{"given":"Xintong","family":"Li","sequence":"first","affiliation":[{"name":"Engineering Research Center for Eco\u2010Dyeing and Finishing of Textiles Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education College of Textile Science and Engineering (International Institute of Silk) Zhejiang Sci\u2010Tech University  Hangzhou 310018 P. R. 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