Skip to Content
Merck
  • Adsorption behavior of tin phthalocyanine onto the (110) face of rutile TiO2.

Adsorption behavior of tin phthalocyanine onto the (110) face of rutile TiO2.

Beilstein journal of nanotechnology (2020-06-20)
Lukasz Bodek, Mads Engelund, Aleksandra Cebrat, Bartosz Such
ABSTRACT

The adsorption behavior of tin phthalocyanine (SnPc) molecules on rutile TiO2(110) was studied by scanning tunneling microscopy (STM). Low-temperature STM measurements of single molecules reveal the coexistence of two conformations of molecules on the TiO2 surface. Density functional theory-based simulations (DFT) indicate that the difference originates from the position of the tin atom protruding from the molecule plane. The irreversible switching of Sn-up molecules into the Sn-down conformation was observed either after sample annealing at 200 °C or as a result of tip-induced manipulation. Room-temperature measurements conducted for a coverage of close to a monolayer showed no tendency for molecular arrangement.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
29H,31H-Phthalocyanine, β-form, 98%
Pricing and availability is not currently available.