Title: Confinement Effects on the Optical Properties and Chain Conformations of Poly(9,9-di-n-octylfluorene-alt-benzothiadiazole) Nanotubes
Authors: Chu, Chien-Wei
Jeng, Kai-Sheng
Chi, Mu-Huan
Tsai, Chia-Chan
Cheng, Ming-Hsiang
Chen, Jiun-Tai
Department of Applied Chemistry
Keywords: anodic aluminum oxide;conjugated polymers;nanotubes;photoluminescence;poly(9,9-di-n-octylfluorene-alt-benzothiadiazole)
Issue Date: Sep-2016
Abstract: Although many fabrication methods of conjugated polymer nanostructures have been developed, the effects of confinement on the morphologies, chain conformations, and optical properties of conjugated polymers are still not well understood. In this work, poly(9,9-di-n-octylfluorene-alt-benzothiadiazole) (F8BT), a light-emitting conjugated polymer, is used to fabricate nanotubes by a solution wetting method using anodic aluminum oxide templates. The property changes under the nanoscale confinement have been investigated. The morphologies of F8BT nanostructures are characterized by scanning electron microscope, transmission electron microscope, and laser scanning confocal microscope. The data show the hollow morphologies and no or low crystallinity of the nanostructures. The optical properties are also measured using UV-vis absorption, photoluminescence, and confocal Raman spectroscopy. The spectroscopy data indicate that F8BT polymer chains have less intermolecular interactions and coplanarity under the confinement effect.
URI: http://hdl.handle.net/11536/134267
ISSN: 1022-1352
Volume: 217
Issue: 18
Begin Page: 2074
End Page: 2080
Appears in Collections:Articles