Origin of photocurrent in poly(3-hexylthiophene)

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Kallman KM, Osterbacka R, Stubb H, Juska G, Arlauskas K
Förläggare: ELSEVIER SCIENCE SA
Publiceringsår: 1999
Tidskrift: Synthetic Metals
Tidskriftsakronym: SYNTHETIC MET
Volym: 101
Nummer: 1-3
Artikelns första sida, sidnummer: 581
Artikelns sista sida, sidnummer: 582
Antal sidor: 2
ISSN: 0379-6779
eISSN: 1879-3290


Abstrakt

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.


Nyckelord

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

Senast uppdaterad 2019-06-12 vid 03:06