Physics and Astronomy Faculty Publications
Document Type
Article
Abstract
We report on it colloidal synthesis of barbell-shaped nanocrystals comprising a type II hetero-junction of ZnSe and US domains and showing compelling evidence of photoinduced charge separation at the interface of ZnSe and US materials. The nanobarbells were fabricated in a two-step procedure by growing ZnSe caps onto polar facets of US nanorods. Under present synthetic conditions, minimal growth of ZnSe shell in the lateral direction and focusing of the barbell length distribution were observed. Formation of epitaxial interfaces between nearly lattice-matched ZnSe and US crystal phases was primarily evidenced by the observation of "spatially indirect" fluorescence and long radiative lifetimes corresponding to the decay of charge transfer states.
Copyright Statement
Publisher PDF
Repository Citation
Kirsanova, Maria; Nemchinov, Alexander; Hewa-Kasakarage, Nishshanka N.; Schmall, Nicholas; and Zamkov, Mikhail, "Synthesis Of ZnSe/CdS/ZnSe Nanobarbells Showing Photoinduced Charge Separation" (2009). Physics and Astronomy Faculty Publications. 8.
https://scholarworks.bgsu.edu/physics_astronomy_pub/8
Publication Date
9-2009
Publication Title
Chemistry Of Materials
DOI
https://doi.org/10.1021/cm901615n
Start Page No.
4305
End Page No.
4309