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The effect of delocalization on the exchange energy in meta- and para-linked Pt-containing carbazole polymers and monomers

Title data

Zhang, Ning ; Hayer, Anna ; Al-Suti, Mohammed K. ; Al-Belushi, Rayya A. ; Khan, Muhammad S. ; Köhler, Anna:
The effect of delocalization on the exchange energy in meta- and para-linked Pt-containing carbazole polymers and monomers.
In: The Journal of Chemical Physics. Vol. 124 (2006) Issue 24 . - p. 244701.
ISSN 0021-9606
DOI: https://doi.org/10.1063/1.2200351

Abstract in another language

A series of novel platinum-containing carbazole monomers and polymers was synthesized and fully characterized by UV-VIS absorption, luminescence, and photoinduced absorption studies. In these compounds, a carbazole unit is incorporated into the main chain via either a para- or a meta-linkage. We discuss the effects of linkage and polymerization on the energy levels of S1, T1, and Tn. The S1-T1 splitting observed for the meta-linked monomer(0.4eV) is only half of that in the para-linked monomer(0.8eV). Upon polymerization, the exchange energy in the para-linked compound reduces, yet still remains larger than in the meta-linked polymer. We attribute the difference in exchange energy to the difference in wave function overlap between electron and hole in these compounds.

Further data

Item Type: Article in a journal
Refereed: No
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie - Univ.-Prof. Dr. Anna Köhler
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 10 Mar 2015 11:42
Last Modified: 10 Mar 2015 11:42
URI: https://eref.uni-bayreuth.de/id/eprint/7931