NANO LETTERS
Photoluminescence, Thermal Transport, and Breakdown in Joule-Heated GaN Nanowires
2009 Vol. 9, No. 1 257-263
Tyler Westover,† Reese Jones,† J. Y. Huang,‡ George Wang,‡ Elaine Lai,† and A. Alec Talin*,† Sandia National Laboratories, LiVermore, California 94550, and Sandia National Laboratories, Albuquerque, New Mexico 87185 Received September 18, 2008; Revised Manuscript Received November 20, 2008
ABSTRACT Thermal transport and breakdown in Joule-heated GaN nanowires is investigated using a combination of microphotoluminescence and in situ TEM characterization. The thermal conductivity of the nanowires is estimated to be