Статья

Realizing Multicolor, 3D‐Printable Ultralong Room Temperature Phosphorescence PLA Materials via Regulating the π‐System of Aryl‐Annulated Carbazoles

Haiqing MaState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. ChinaYujing QinState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. ChinaN. ZhangState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. ChinaHao-Ran MuState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. ChinaJinbin LiuState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. ChinaShanfeng XueState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. ChinaQikun SunState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. ChinaWenjun YangState Key Laboratory of Advanced Optical Polymer and Manufacturing Technology/Key Laboratory of Rubber‐plastics of Ministry of Education, School of Polymer Science & Engineering Qingdao University of Science & Technology Qingdao 266042 P. R. China

2025en

ABI

Аннотация

Bio-based degradable organic ultralong room temperature phosphorescence (URTP) polymers should become a mainstream research topic in the future. Meanwhile, shaping URTP polymers into 3D-printable materials is of great significance for applications in optical and optoelectronic fields. Nevertheless, the fabrication of full-color, ultralong, bright, and 3D printable bio-based RTP polymer materials using a single-dopant component still faces significant challenges. Here, by regulating the π-system of aryl-annulated carbazoles, the triplet energy levels are successfully regulated which enabled wavelength-tunable RTP emissions spanning from blue to red afterglow (440 - 628 nm) in PLA matrix. Non-radiative decay of dopant triplet excitons are effectively suppressed by the rigid environment of polymer matrix and dopant-polymer interactions. This enables the prepared PLA-based RTP materials exhibited ultralong lifetimes of 3.84 s and the naked-eye-visible afterglow duration up to 48 s. Recyclable and reprocessable RTP objects are fabricated via 3D printing and are successfully applied in the fields of artworks, monitoring and anti-counterfeiting. This successfully expands the application of polymer-based RTP materials in 3D fields, and will promote the commercialization of RTP materials and the development of environmentally friendly ultralong RTP materials.

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Идентификаторы

DOI: 10.1002/adma.202510443

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar