Experimental investigation of exciton-LO-phonon couplings in CdSe/ZnS core/shell nanorods
- 6 May 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 77 (19) , 193303
- https://doi.org/10.1103/physrevb.77.193303
Abstract
We investigate the size dependence of the exciton-LO-phonon coupling strength in colloidal CdSe nanorods coated with an epitaxial ZnS shell. We find an increase in the coupling strength with decreasing nanorod diameter. The growth of a ZnS shell on the nanorod surface much more strongly reduces the exciton-phonon coupling strength than expected from geometry considerations. The determined radius dependence of the Huang-Rhys factor is similar to that observed for spherical CdSe nanocrystals.Keywords
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