Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 23, Issue 18, Pages 2329-2337Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201202639
Keywords
aggregation-induced emission; deep-blue luminogens; organic light-emitting diodes
Categories
Funding
- National Science Foundation of China [21161160556]
- National Fundamental Key Research Program [2011CB932702, 2013CB834700]
- Open Project of State Key Laboratory of Supramolecular Structure and Materials [sklssm201219]
- Science Fund for Creative Research Groups of NSFC [20921061]
- National Natural Science Foundation of China [50973104, 60906020]
Ask authors/readers for more resources
Four 4,4-bis(1,2,2-triphenylvinyl)biphenyl (BTPE) derivatives, 4,4-bis(1,2,2-triphenylvinyl)biphenyl, 2,3-bis(1,2,2-triphenylvinyl)biphenyl, 2,4-bis(1,2,2-triphenylvinyl)biphenyl, 3,3-bis(1,2,2-triphenylvinyl)biphenyl and 3,4-bis(1,2,2-triphenylvinyl)biphenyl (oTPE-mTPE, oTPE-pTPE, mTPE-mTPE, and mTPE-pTPE, respectively), are successfully synthesized and their thermal, optical, and electronic properties fully investigated. By merging two simple tetraphenylethene (TPE) units together through different linking positions, the -conjugation length is effectively controlled to ensure the deep-blue emission. Because of the minor but intelligent structural modification, all the four fluorophores exhibit deep-blue emissions from 435 to 459 nm with Commission Internationale de l'Eclairage (CIE) chromaticity coordinates of, respectively, (0.16, 0.14), (0.15, 0.11), (0.16, 0.14), and (0.16, 0.16), when fabricated as emitters in organic light-emitting diodes (OLEDs). This is completely different from BTPE with sky-blue emission (0.20, 0.36). Thus, these results may provide a novel and versatile approach for the design of deep-blue aggregation-induced emission (AIE) luminogens.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available