Journal
APL MATERIALS
Volume 4, Issue 12, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4971353
Keywords
-
Funding
- National Natural Science Foundation of China [11274063, 11574047]
Ask authors/readers for more resources
The structure and luminescence mechanisms of the CuInS2 quantum dots (QDs) after epitaxial growth of ZnS shell are in debate. The light absorption/emission spectroscopy reveals that after ZnS shell growth the cation diffusion at the CuInS2/ZnS interface results in formation of the alloyed CuInS2/ZnS to CuxZn1-xInS2/ZnS:Cu QDs. These core/shell QDs exhibit dual-color photoluminescence with abnormal blue shift with decreasing excitation photon energy. The results show that the green and orange emissions originate separately from defects in the core and the shell. The absorption tail of the ZnS QDs turns from Urbach to Halperin-Lax type after Cu doping. (C) 2016 Author(s).
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