Electron traps in semiconducting polymers: exponential versus Gaussian trap distribution
article
The low electron currents in poly(dialkoxy-p-phenylene vinylene) (PPV) derivatives and their steep voltage dependence are generally explained by trap-limited conduction in the presence of an exponential trap distribution. Here we demonstrate that the electron transport of several PPV derivatives can also be well described with a trap distribution that is Gaussianly distributed within the band gap. In contrast to the exponential distribution the trap-limited electron currents can now be modeled using the same Gaussian trap distribution for the various PPV derivatives.
TNO Identifier
434681
ISSN
10980121
Source
Physical Review B - Condensed Matter and Materials Physics, 83(19)
Article nr.
195204
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