Adsorption behavior of tin phthalocyanine onto the (110) face of rutile TiO2.
Łukasz BodekMads EngelundAleksandra CebratBartosz SuchPublished in: Beilstein journal of nanotechnology (2020)
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.
Keyphrases
- density functional theory
- molecular dynamics
- room temperature
- photodynamic therapy
- quantum dots
- high resolution
- visible light
- single molecule
- perovskite solar cells
- high throughput
- ionic liquid
- high glucose
- diabetic rats
- healthcare
- aqueous solution
- single cell
- gene expression
- genome wide
- dna methylation
- drug induced
- crystal structure
- affordable care act
- monte carlo
- health insurance
- electron microscopy