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Fig. 4.
Fig. 4. Electroluminescence spectra of the conventional semipolar GaN-LED (a) and HPELO GaN-LED (b) when injection current increases from 0.1 to 100 mA. Emission wavelength of both LEDs as a function of injection current (c) and current density (d). [Insets of (c) show the microscopic EL images of ALS structure area with increasing injection current.]
Applied Science and Convergence Technology 2022;31:56~59
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