Premium
Effect of Molecular Morphology on Amplified Spontaneous Emission of Bis‐Styrylbenzene Derivatives
Author(s) -
Kabe Ryota,
Nakanotani Hajime,
Sakanoue Tomo,
Yahiro Masayuki,
Adachi Chihaya
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200803588
Subject(s) - materials science , aggregation induced emission , morphology (biology) , amplified spontaneous emission , nanotechnology , chemical engineering , optics , fluorescence , genetics , biology , laser , engineering , physics
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 ambipolar 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.