liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Electronic state of nitrogen containing polypyridine at the interfaces with model sulfonic acid containing polymer and molecule
Wong, K.Y..
Smallfield, J.A.O..
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry .
Epstein, A.J..
2003 (English)Conference paper (Refereed)
Abstract [en]

We present results of an X-ray photoelectron spectroscopy (XPS) study of the interfaces between polypyridine (PPy) and model sulfonic acid containing polymer and molecule. We show that the N 1s level splits reflecting protonation of a substantial fraction of the PPy N sites. Density functional theory (DFT) is employed to compare excitation energies, bond angles, highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO), and density of states of oligomers of pyridine and protonated pyridine. These results are in accord with the proposed origin of the red shift of the emitted light under forward bias in color-variable alternating-current light emitting (SCALE) devices.

Place, publisher, year, edition, pages
2003. Vol. 137, no 1-3, 1031-1032 p.
Keyword [en]
Density functional theory, Polymer-polymer interfaces, SCALE, Sulfonated polyaniline, X-ray photoelectron spectroscopy
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-46669DOI: 10.1016/S0379-6779(02)00890-1OAI: diva2:267565
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2010-09-07

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Fahlman, Mats
By organisation
The Institute of TechnologySurface Physics and Chemistry
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 20 hits
ReferencesLink to record
Permanent link

Direct link