Browse

Change in electrical characteristics of poly(p-phenylene vinylene)-based self-assembled devices by addition of ionic salt to poly(sodium 4-styrenesulfonate)

Cited 11 time in Web of Science Cited 11 time in Scopus
Authors
Cho, Jinhan; Char, Kookheon; Kim, Sun-Young; Hong, Jong-Dal; Kim, Dong Young; Lee, Ki-Bong; 이기봉
Issue Date
2001-11-14
Publisher
Elsevier
Citation
Synth. Met. 124 (2001) 415
Keywords
Author Keywords: Poly(p-phenylene vinylene) (PPV)MultilayerSelf-assembly methodElectroluminescence (EL)Ionic salt
Abstract
A systematic study was performed on the effect of added salt on the effective conjugation lengths poly(p-phenylene vinylene)s (PPVs) formed by heat-treatment of PPV precursors in self-assembled films based on the layer-by-layer deposition between PPV and poly(sodium 4-styrenesulfonate) (PSS). It was demonstrated that the increased adsorbed amount of negatively charged PSS layer by adding NaCl salt to the PSS solution caused a blue spectral shift in electroluminescence and at the same time yielded a high turn-on voltage. The changes of electrical properties of PPV in the self-assembled films were mainly attributed to the restricted growth of conjugation bond length of PPVs induced by the increase of binding sites with the adsorbing PSS and the subsequent formation of sulfonic ester group during the thermal elimination reaction. Consequently, it is shown that the electrical properties of PPV can be simply tuned by the variation of physical parameters for the fabrication of self-assembled films without a change of PPV chemistry.
ISSN
0379-6779
Language
English
URI
http://hdl.handle.net/10371/5849
DOI
https://doi.org/10.1016/S0379-6779(01)00383-6
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse