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

Beilstein Journal of Nanotechnology

Mads Engelund¹  Lukasz Bodek²  Bartosz Such²  Aleksandra Cebrat² 

[1] Espeem S.A.R.L., c/o Technoport S.A., 9 Avenue des Haut-Fourneaux, L-4362 Esch-Sur-Alzette, Luxembourg;Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, ul. S. Lojasiewicza 11, 30-348 Krakow, Poland;

关键词: rutile (110) surface;    scanning tunneling microscopy (stm);    tin phthalocyanine (snpc);    titanium dioxide (tio2);   

DOI  :  10.3762/bjnano.11.67

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown