磷光
持续发光
成分
活性成分
材料科学
化学
跟踪(心理语言学)
环境化学
纳米技术
发光
光电子学
荧光
光学
物理
生物信息学
食品科学
哲学
语言学
热释光
生物
作者
Bingbing Ding,Liangwei Ma,Zizhao Huang,Xiang Ma,He Tian
出处
期刊:Science Advances
[American Association for the Advancement of Science]
日期:2021-05-07
卷期号:7 (19)
被引量:231
标识
DOI:10.1126/sciadv.abf9668
摘要
Pure organic persistent room temperature phosphorescence (RTP) has shown great potential in information encryption, optoelectronic devices, and bio-applications. However, trace impurities are generated in synthesis, causing unpredictable effects on the luminescence properties. Here, an impurity is isolated from a pure organic RTP system and structurally characterized that caused an unusual ultralong RTP in matrix even at 0.01 mole percent content. Inspired by this effect, a series of compounds are screened out to form the bicomponent RTP system by the trace ingredient incorporation method. The RTP quantum yields reach as high as 74.2%, and the lifetimes reach up to 430 ms. Flexible application of trace ingredients to construct RTP materials has become an eye-catching strategy with high efficiency, economy, and potential for applications as well as easy preparation.
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