Influence of electrospray deposition on C 60 molecular assemblies

Beilstein Journal of Nanotechnology

article

Antoine Hinaut¹  Sebastian Scherb¹  Sara Freund¹  Zhao Liu¹  Thilo Glatzel¹  Ernst Meyer¹ 

[1] Department of Physics, University of Basel

关键词: alkali halide;    Au(111);    bulk insulator;    C60;    electrospray;    electrospraydeposition;    fullerene;    high-vacuum electrospray deposition (HV-ESD);    molecular assembly;    nc-AFM;    NiO;    single molecule;    thermalevaporation;   

DOI  :  10.3762/bjnano.12.45

学科分类：环境监测和分析

来源: Beilstein - Institut zur Foerderung der Chemischen Wissenschaften

【 摘 要 】

Maintaining clean conditions for samples during all steps of preparation and investigation is important for scanning probe studies atthe atomic or molecular level. For large or fragile organic molecules, where sublimation cannot be used, high-vacuum electrospraydeposition is a good alternative. However, because this method requires the introduction into vacuum of the molecules from solution, clean conditions are more difficult to be maintained. Additionally, because the presence of solvent on the surface cannot befully eliminated, one has to take care of its possible influence. Here, we compare the high-vacuum electrospray deposition methodto thermal evaporation for the preparation of C60 on different surfaces and compare, for sub-monolayer coverages, the influence ofthe deposition method on the formation of molecular assemblies. Whereas the island location is the main difference for metal surfaces, we observe for alkali halide and metal oxide substrates that the high-vacuum electrospray method can yield single isolatedmolecules accompanied by surface modifications.

【 授权许可】

CC BY