Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 248, Issue 11, Pages 2748-2750Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201100222
Keywords
Raman spectroscopy; PbTe; nanocrystals; quantum dots; core shell
Categories
Funding
- Cluster of Excellence Unifying Concepts in Catalysis'' coordinated by the Technische Universitat Berlin
- Deutsche Forschungsgemeinschaft
Ask authors/readers for more resources
We studied the evolution of Raman signals stemming from colloidal PbTe/CdTe nanocrystals (NCs). The NCs were grown using the cation exchange method and samples having different amounts of CdTe as shell material were investigated. The observed Raman bands are correlated to pure tellurium modes and after introduction of CdTe its longitudinal optical (LO) mode becomes also visible. The tellurium modes' intensity rapidly decreases after cationic exchange due to the chemical bonding of the vacant tellurium atoms.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
