TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Photophysical Study of a Self-Assembled Donor-Acceptor Two-Layer Film on TiO2

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut944-952
Sivumäärä9
JulkaisuLangmuir
Vuosikerta31
Numero3
DOI - pysyväislinkit
TilaJulkaistu - 27 tammikuuta 2015
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

The self-assembled monolayer (SAM) technique was employed to fabricate a two-layer donoracceptor film on the surface of TiO2. The approach is based on using donor and acceptor compounds with anchoring groups of different lengths. The acceptor, a fullerene derivative, has a carboxyl anchor attached to the fullerene moiety via a short linker that places the fullerene close to the surface. The donor, a porphyrin derivative, is equipped with a long linker that can penetrate between the fullerenes and keep porphyrin on top of the fullerene layer. The two-layer fullereneporphyrin structures were deposited on a mesoporous film of TiO2 nanoparticles by immersing the TiO2 film sequentially into fullerene and porphyrin solutions. Transient absorption spectroscopy studies of the samples revealed that after the selective photoexcitation of porphyrin a fast (

Tutkimusalat

Julkaisufoorumi-taso

Tilastokeskuksen tieteenalat

Latausten tilastot

Ei tietoja saatavilla