Abstract
The tendency to saturation in the collected charge as a function of light intensity in Langmuir-Blodgett films of poly(3-hexylthiophene) (PHT) has been studied. The tendency to saturation can have two reasons; that the space charge limited current regime has been reached, or influence of very fast bimolecular recombination. We have studied these two cases, and we conclude that bimolecular recombination is a probable cause for the tendency to saturation. The hole mobility in PHT can therefore possibly be estimated as high as 1 cm2/Vs in the initial stage after photoexcitation.
Original language | English |
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Pages (from-to) | 88-89 |
Journal | Synthetic Metals |
Volume | 101 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1999 |
MoE publication type | A1 Journal article-refereed |