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Cross-sectional (a) SEM image of GaN NRs template and (b) TEM image of the GaN epilayer overgrown on GaN NRs template.
The EL emission peak wavelength as a function of injection current for (a) NR-LED and (b) C-LED. (c) Forward voltage and light output power as a function of injection current of NR-LED and C-LED.
3D-FDTD calculated electric-field distribution of NR-LED and C-LED.
(a) Experimental and simulated EQE as a function of injection current for NR-LED and C-LED. (b) The calculated band diagram of NR-LED and C-LED under a 100 mA forward bias operation.
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