Origin of photocurrent in poly(3-hexylthiophene)

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Kallman KM, Osterbacka R, Stubb H, Juska G, Arlauskas K
Publisher: ELSEVIER SCIENCE SA
Publication year: 1999
Journal: Synthetic Metals
Journal acronym: SYNTHETIC MET
Volume number: 101
Issue number: 1-3
Start page: 581
End page: 582
Number of pages: 2
ISSN: 0379-6779
eISSN: 1879-3290


Abstract

We have measured the steady state (SS) and pulsed photoconductive response in Langmuir-Blodgett (LB) films of poly(3-hexylthiophene) (P3HT) in order to clarify the origin of the photocurrent in P3HT sandwiched between indium tin oxide and aluminum (Al) electrodes. We have shown that the Al electrode is important for the observed photosignal. The spectral response of the SS signal follows, however, the absorption spectrum of P3HT, and therefore we attribute the photosignal to hole injection from the Al electrode due to electron transfer from the photo-excited polymer close to the inter face.


Keywords

Langmuir-Blodgett techniques, optical spectroscopy, photoconductivity, Poly(3-hexylthiophene)

Last updated on 2019-09-12 at 02:54