Citation: Chunyuan Kang, Xiaoyu Li, Fan Yang, Bai Yang. Ionic-bond crosslinked carbonized polymer dots for tunable and enhanced room temperature phosphorescence[J]. Acta Physico-Chimica Sinica, ;2026, 42(1): 100156. doi: 10.1016/j.actphy.2025.100156 shu

Ionic-bond crosslinked carbonized polymer dots for tunable and enhanced room temperature phosphorescence

State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, Jilin Province, China

Corresponding author: Bai Yang, byangchem@jlu.edu.cn
Received Date: 11 June 2025
Revised Date: 29 July 2025

Carbonized polymer dots (CPDs) have emerged as promising room temperature phosphorescent (RTP) materials owing to their tunable luminescence and facile synthesis. However, current strategies relying on hydrogen/covalent bond for luminescence enhancement suffer from limited phosphorescence intensity, and color diversity (primarily green). This work proposes constructing ionic-bond crosslinked network as a novel design strategy to address these limitations. Owing to the high strength, non-directionality and non-saturation of ionic bond, crosslinked networks are constructed to immobilize chromophores and suppress non-radiative transitions. By incorporating lithium ions into poly(acrylic acid)-based CPDs, the photoluminescence quantum yield is dramatically enhanced from 1.1% to 48.4%, with a 40-fold increase in phosphorescence intensity. Further introduction of zinc ions enables tunable RTP emission from green to yellow via transition metal doping. This strategy achieves effective regulation of RTP intensity and wavelength in CPDs, providing a versatile platform for designing advanced organic phosphorescent materials with tailored RTP properties.
- Carbon dots,
- Carbonized polymer dots,
- Room temperature phosphorescence,
- Crosslinking enhanced emission effect,
- Ionic bond
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Ionic-bond crosslinked carbonized polymer dots for tunable and enhanced room temperature phosphorescence

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com