TiOPc molecular dislocation networks as nanotemplates for C60 cluster arrays.
By controlled deposition, TiOPc, a molecular semiconductor with anisotropic interactions can generate a molecular film with a characteristic pattern repeat size of 15 nm. This structure then served as a nanotemplate for a superlattice of C(60) clusters with characteristic diameters of 7 nm. As a result, C(60) deposition on the TiOPc film template forms a pattern of nanophase-separated C(60) and TiOPc domains with a characteristic domain size of 7 nm. This feature size is matched to the exciton diffusion length in photovoltaic materials composed of small organic molecules. A dislocation network in a molecular film provides a promising method for generating pattern features on the several-nanometer length scale, bridging the practical limits of "bottom up" and "top down" strategies.
Wei
Yinying
Y
Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA.
Robey
Steven W
SW
Reutt-Robey
Janice E
JE
D037741:Fullerenes / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*
D037741:Fullerenes; D007211:Indoles; D009942:Organometallic Compounds; C545058:titanyl phthalocyanin; C069837:fullerene C60