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(a) Schematic diagram of GaN LED structure with ZnO nanorod arrays. (b) Top view micrograph image of C-LED and (c) top view micrograph image of NR-LED with FE-SEM images [d and e] of ZnO nanorods on the ITO of the -GaN electrode.
curves of C-LED and NR-LED.
EL spectra of C-LED and NR-LED at 20 and 100 mA.
Micrograph images of C-LED, low density NR-LED, and high density NR-LED. Light output power of individual LEDs as a function of injection currents.
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