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Schematic of the A-plane AlN p–n junction LED structure and experimental setup for EL measurement.
I-V characteristics of the A-plane AlN p–n junction LED.
(a) EL spectra of the A-plane AlN p–n junction LED at polarizer orientation , 45°, and 90°. (b) EL intensity as a function of the polarizer orientation.
Radiation patterns and schematics of radiation along (a) the m-axis of the A-plane AlN LED, (b) the c-axis of the A-plane AlN LED, and (c) for the C-plane AlN LED. In [(a)–(c)] on the left, symbols are the experimental data and solid lines are calculated radiation patterns.
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