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Temperature effects on intrachain recombination of bipolarons in conjugated polymers
Linköping University, Department of Physics, Chemistry and Biology, Computational Physics. Linköping University, The Institute of Technology.
University of Brasilia, Brazil.
University of Brasilia, Brazil.
University of Florida, FL 32611 USA; University of Florida, FL 32611 USA.
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2014 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 614, 151-155 p.Article in journal (Refereed) Published
Abstract [en]

The temperature influence over the intrachain recombination dynamics between oppositely charged bipolarons has been theoretically investigated using a version of the Su-Schrieffer-Heeger model. The results shown that, below of a critical temperature regime, these charge carriers can recombine into a biexciton. This excited state is a light emissive specie that can emit one photon and turn into an exciton state. This specie can thereafter decay to the ground state by other photon emission. This knowledge can enlighten the understanding needed to improve the internal quantum efficiency of electroluminescence in Polymer Light Emitting Diodes.

Place, publisher, year, edition, pages
Elsevier , 2014. Vol. 614, 151-155 p.
National Category
Physical Sciences
URN: urn:nbn:se:liu:diva-112833DOI: 10.1016/j.cplett.2014.09.036ISI: 000344429200030OAI: diva2:776796

Funding Agencies|Swedish Research Council (VR); Brazilian Research Council CNPq; Brazilian Research Council CAPES; Brazilian Research Council FINATEC

Available from: 2015-01-08 Created: 2014-12-17 Last updated: 2015-01-08

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Ribeiro, Luiz Antonio
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