Cylindrical superparticles from semiconductor nanorods.
In this communication, we report a synthesis of anisotropic colloidal superparticles (SPs) from CdSe/CdS semiconductor nanorods. These anisotropic SPs are cylindrical disks or stacked-disk arrays. We attribute the major driving forces controlling the SP shape to interparticle interactions between nanorods and solvophobic interactions between a superparticle and its surrounding solvent. According to their sizes (or volumes), the SPs adopt either single- or multilayered structures. In addition, these SPs exhibit linearly polarized emissions, demonstrating their potential role as useful components in devices such as polarized light-emitting diodes and electrooptical modulators.
Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
Jiaqi
J
Zhuang
Andrew D
AD
Shaller
Jared
J
Lynch
Huimeng
H
Wu
Ou
O
Chen
Alexander D Q
AD
Li
Y Charles
YC
Cao
D019187:Cadmium Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D043942:Nanotubes / Q000737:chemistry*; D010316:Particle Size; D018036:Selenium Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012666:Semiconductors; D013440:Sulfides / Q000138:chemical synthesis / Q000737:chemistry*; D013499:Surface Properties
D019187:Cadmium Compounds; D018036:Selenium Compounds; D013440:Sulfides; C034939:cadmium sulfide; C058667:cadmium selenide