4.8 Article

Effect of Molecular Morphology on Amplified Spontaneous Emission of Bis-Styrylbenzene Derivatives

Journal

ADVANCED MATERIALS
Volume 21, Issue 40, Pages 4034-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200803588

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Funding

  1. Ministry of Education, Culture, Sports, Science, and Technology of Japan

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Molecular aggregation greatly affects the fluorescence quantum efficiency, transient lifetime, and amplified spontaneous emission (ASE) of bis-styrylbenzene derivatives. We compare the optical properties for various morphologies (solution, film, doped film, and single crystalline state) (see figure) and demonstrate that ambi-polar operation of a 1,4-bis(4-methylstyryl) benzene layer in field-effect transistors leads to intense blue electroluminescence with a rather sharp emission width.

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