TITLE

Trimolecular recombination in polythiophene: fullerene bulk heterojunction solar cells

AUTHOR(S)
Jusˇka, G.; Genevicˇius, K.; Nekrasˇas, N.; Sliauzˇys, G.; Dennler, G.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/6/2008, Vol. 93 Issue 14, p143303
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this work, reduced Langevin recombination in poly(3-hexylthiophene): 1-(3-methoxycarbonyl) propyl-1-phenyl[6,6]C61 blends has been studied with various methods. Using photogenerated charge carrier extraction by linearly increasing voltage technique, it was observed that charge carrier recombination transient corresponds to trimolecular recombination. By double injection current transient technique, it was shown that the influence of deep charge carrier trapping is insignificant and that trimolecular recombination coefficient γ is independent of the electric field. Finally, the temperature dependence of γ was measured by integral time-of-flight method.
ACCESSION #
34850479

 

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