Space-and-time-resolved spectroscopy of single GaN nanowires

Journal Article · Mon Jun 29 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4923273· OSTI ID:22482017

Upadhya, Prashanth C. ^[1]; Martinez, Julio A. ^[2]; Li, Qiming; Wang, George T.; Swartzentruber, Brian S. ^[2]; Taylor, Antoinette J.

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1. Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. Sandia National Laboratories, P.O. Box 5800, MS-1086, Albuquerque, New Mexico 87185 (United States)

Gallium nitride nanowires have garnered much attention in recent years due to their attractive optical and electrical properties. An understanding of carrier transport, relaxation, and recombination in these quasi-one-dimensional nanosystems is therefore important in optimizing them for various applications. Here, we present ultrafast optical microscopic measurements on single GaN nanowires. Our experiments, performed while varying the light polarization, excitation fluence, and position, give insight into the mechanisms governing carrier dynamics in these nanosystems.

• OSTI ID: 22482017
• Journal Information: Applied Physics Letters, Vol. 106, Issue 26; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARRIERS
ELECTRICAL PROPERTIES
EXCITATION
GALLIUM NITRIDES
NANOWIRES
POLARIZATION
RECOMBINATION
RELAXATION
SPECTROSCOPY
TIME RESOLUTION