点击次数：

论文类型：期刊论文

发表时间：2020-06-01

发表刊物：DYES AND PIGMENTS

收录刊物：SCIE

卷号：177

ISSN号：0143-7208

关键字：Room-temperature phosphorescence; Ionic complex matrix; Doped crystals; Multiple phosphorescence; Two-dimensional anti-counterfeiting

摘要：Developing highly desirable organic compounds with strong long-lived room-temperature phosphorescence (RTP) under ambient conditions has been a grand challenge. Present here is a new type of crystalline matrices based on ionic solvento complexes, [Al(DMSO)(6)]X-3(X- = Cl-, Br-) which can trap various trace amount of organic phosphors to prepare low-cost RTP materials. The phosphorescence of such phases in the air at RT can demonstrate both long lifetime (up to 229.7 ms) and high quantum efficiency (up to 15.8%) due to RTP-enhancing X- anions and phosphor-protecting matrices. Further, the guest-friendly feature of the matrices enables the development of a multiple-RTP doped phase via the simultaneous inclusion of two phosphors into one matrix, enabling unprecedented two-dimensional anti-counterfeiting. The work not only finds a new and facile route to develop low-cost RTP materials including multiple-RTP materials but also expands their application domains.