https://scholars.lib.ntu.edu.tw/handle/123456789/600312
標題: | Triarylamine-Based Wholly Aromatic Polyimide with Simultaneously Unprecedented Photoluminescence Efficiency and High Glass-Transition Temperature | 作者: | Shao Y.-J GUEY-SHENG LIOU |
關鍵字: | photoluminescence;quantum efficiency;triarylamine;twisted conformation;wholly aromatic polyimide;Aromatic compounds;Aromatization;Charge transfer;Efficiency;Glass;Glass transition;Photoluminescence;Polyimides;Quantum theory;Temperature;Aromatic polyimides;Complex effects;Film state;High-glass transition temperatures;Photoluminescence efficiency;Polyimide backbones;Triarylamines;Triphenylamines;Twisted conformation;Wholly aromatic polyimide;Quantum efficiency | 公開日期: | 2022 | 卷: | 10 | 期: | 3 | 來源出版物: | Advanced Optical Materials | 摘要: | The weak photoluminescence (PL) of wholly aromatic polyimide (Ar-PI) is generally associated with the strong charge-transfer complex effect in both solution and solid states. Research has focused on structural designs promoting the PL behavior, but Ar-PI PL remains a challenge in the solid state. Herein, a twisted conformation is incorporated into a triphenylamine-based polyimide backbone to obtain a series of Ar-PIs with extremely high PL quantum efficiency (ΦPL) in solution and even film states. PI3M-4M exhibits the highest ΦPL of up to 61% in the film state, which is considerably superior to the values for reported Ar-PIs. PI3M-4M is also the first Ar-PI to simultaneously demonstrate an unprecedented ΦPL with a remarkable glass-transition temperature Tg of 470?°C. ? 2021 Wiley-VCH GmbH. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120470441&doi=10.1002%2fadom.202101949&partnerID=40&md5=03b75f4276e80557c02918e40cf99492 https://scholars.lib.ntu.edu.tw/handle/123456789/600312 |
ISSN: | 21951071 | DOI: | 10.1002/adom.202101949 |
顯示於: | 高分子科學與工程學研究所 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。