Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/28223
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
Source: 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.
URI: http://scholarbank.nus.edu.sg/handle/10635/28223
Appears in Collections:Ph.D Theses (Open)

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