Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2966343
Keywords
-
Categories
Funding
- MEXT of Japan [20244044, 17-5056]
- Grants-in-Aid for Scientific Research [20244044] Funding Source: KAKEN
Ask authors/readers for more resources
We study optical transitions from a periodic array of InP/InAs/InP core-multishell nanowires (CMNs) having a wurtzite crystal structure by using photoluminescence (PL) and PL excitation (PLE) spectroscopy. Observing a large Stokes shift between PL and PLE spectra, a blueshift of the PL peak with a cube-root dependence on the excitation power and a slow and nonexponential decay of PL with an effective decay time of 16 ns suggest a type-II band alignment. Band-offset calculation based on the model-solid theory of Van de Walle [Phys. Rev. B 39, 1871 (1989)] supports type-II band lineup if the InAs layer in the wurtzite CMNs is assumed to sustain compressive strain in all directions. (C) 2008 American Institute of Physics.
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