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Fig. 7 | Nanoscale Research Letters

Fig. 7

From: Vertical-Injection AlGaInP LEDs with n-AlGaInP Nanopillars Fabricated by Self-Assembled ITO-Based Nanodots

Fig. 7

a Variation of the output power as a function of current for the AlGaInP-based VI-LEDs with n-AlGaInP nanopillars, for the VI-LEDS with the surface-roughened n-AlGaInP, and for VI-LEDs without patterning. The inset shows the emission profile at 50 mA for the VI-LEDs with nanopillars and for the VI-LEDs with the surface-roughened n-AlGaInP. b EL spectra for the VI-LEDs with n-AlGaInP nanopillars, for the VI-LEDS with the surface-roughened n-AlGaInP, and for VI-LEDs without patterning

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