Pseudo‐Homologue Doping Strategy for Afterglow Materials
Abstract
ABSTRACT Impurities in organic phosphorescent materials have caused extensive discussions in recent years. In this work, we demonstrate the impressive afterglow of commercial benzene‐carboxylic acid (BCA) derivatives are attributed to trace impurities identified as biphenyl carboxylic acid derivatives. One of the impurities even induces detectable phosphorescence when the doping ratio is as low as 0.1 ppm (molar ratio). Inspired by the structural similarity between impurities and the main component, we propose a pseudo‐homologues strategy for constructing afterglow materials. Based on this model, several groups of compounds are used to prepare 275 doped samples. Surprisingly, pseudo‐homologues exhibit a markedly higher success rate for afterglow (73.3%) compared to that of other samples (6.5%). This structural model offers new perspectives for the construction of dual‐component afterglow materials.
Article Details
Authors (10)
Jiayu Wang
Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University
Liangwei Ma
Bingbing Ding
Lei Zhou
Siyu Sun
Xi’an Jiaotong University , , , ,
Zhenyi He
Jinming Song
Zhiqin Wu
Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology 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
He Tian
Center of Electron Microscopy, School of Materials Science and Engineering, Zhejiang University, Hangzhou, China.
Xiang Ma
Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated-Materials, College of Chemistry