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Quantum confined Stark effect of InGaN/GaN multi-quantum disks grown on top of GaN nanorods.

Abstract:
We have investigated, using micro-photoluminescence, the quantum confined Stark effect in an In(x)Ga(1-x)N/GaN multi-quantum disk structure at the tip of a single GaN nanorod. A strong and sharp emission line from the In(x)Ga(1-x)N/GaN quantum disks near 3.26 eV was observed. The peak energy of the emission line was observed to blue-shift with increasing excitation power, indicating a quantum confined Stark effect. Furthermore, both the blue-shift and the intensity of the emission saturate with increasing excitation power. The temperature-dependence of the 3.26 eV emission line has also been investigated.
Publication status:
Published

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Publisher copy:
10.1088/0957-4484/21/11/115401

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author


Journal:
Nanotechnology More from this journal
Volume:
21
Issue:
11
Pages:
115401
Publication date:
2010-03-01
DOI:
EISSN:
1361-6528
ISSN:
0957-4484


Language:
English
Pubs id:
pubs:48917
UUID:
uuid:f1969ad4-5f91-42eb-8f9c-50507b230960
Local pid:
pubs:48917
Source identifiers:
48917
Deposit date:
2012-12-19
ARK identifier:

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