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Title: Triarylamine-based molecules: Synthesis, characterization and application
Authors: FANG ZHEN
Keywords: triphenylamine, porphyrin, two photon absorption, light emitting, hole transport
Issue Date: 12-Jun-2009
Citation: FANG ZHEN (2009-06-12). Triarylamine-based molecules: Synthesis, characterization and application. ScholarBank@NUS Repository.
Abstract: A bridged triphenylamine, which is locked by three methylene linkages at ortho-positions of benzene rings, has been designed and synthesized. The methylene units in bridged triphenylamine hold the three phenyl rings in a locked, planar manner and thus enhance the pi conjugation through the central nitrogen atoms, which is verified by single crystal X-ray diffraction. A series of molecules based on the bridged triphenylamines were synthesized that show large two-photon absorption with the values of cross section up to 6100 GM, remarkably higher than their triphenylamine counterparts. These locked triphenylamine two-photon absorbers are expected to form a class of materials with good promise in the field of nonlinear optics. Also due to the good hole transporting ability, these triphenylamines were applied in light emitting diodes.
Appears in Collections:Ph.D Theses (Open)

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