Abstract
Research on pure organic room-temperature phosphorescent (RTP) materials has made great advances but near-infrared (NIR) RTP emitting materials are still rare. Novel amorphous acrylamide copolymers containing iodine substituted borondipyrromethene (Bodipy) were prepared to obtain strong absorption in the visible region and moderate RTP in the NIR region with much larger Stokes shift than the fluorescence emission of traditional Bodipy dyes. Expensive metals and crystallization were left out to avoid biotoxicity and strict preparation conditions. Monoiodo and diiodo-Bodipy derivatives were both designed to study the substitution effect of iodine atoms. Photophysical properties, phosphorescence quantum yield and lifetime were characterized. Gels with NIR RTP emission were facilely prepared with the incorporation of ureidopyrimidone (UPy) and N,N'-methylenebisacrylamide (MBAA). The mechanical properties of the gels were measured using a rheometer and the results showed that the gels displayed fast self-healing ability due to the strong quadruple hydrogen bonding between UPy moieties.
Highlights
Room-temperature phosphorescence (RTP) emitting materials have been one of the most extensively investigated luminescent materials in recent years due to their distinctive photophysical properties and wide applications in various elds including bioimaging,[1,2,3,4] organic light-emitting diodes,[5,6] molecular switches,[7,8] and so forth
Gels with NIR room-temperature phosphorescent (RTP) emission were facilely prepared with the incorporation of ureidopyrimidone (UPy) and N,N0-methylenebisacrylamide (MBAA)
The mechanical properties of the gels were measured using a rheometer and the results showed that the gels displayed fast self-healing ability due to the strong quadruple hydrogen bonding between UPy moieties
Summary
Room-temperature phosphorescence (RTP) emitting materials have been one of the most extensively investigated luminescent materials in recent years due to their distinctive photophysical properties and wide applications in various elds including bioimaging,[1,2,3,4] organic light-emitting diodes,[5,6] molecular switches,[7,8] and so forth. Novel amorphous acrylamide copolymers containing iodine substituted borondipyrromethene (Bodipy) were prepared to obtain strong absorption in the visible region and moderate RTP in the NIR region with much larger Stokes shift than the fluorescence emission of traditional Bodipy dyes. Gels with NIR RTP emission were facilely prepared with the incorporation of ureidopyrimidone (UPy) and N,N0-methylenebisacrylamide (MBAA).
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