Figure 4 | Scientific Reports

Figure 4

From: Fabrication of wide-bandgap transparent electrodes by using conductive filaments: Performance breakthrough in vertical-type GaN LED

Figure 4

Performance and light emission images of VELDs with conventional metal electrode and with CF-based TCEs before and after EBD.

(a), Current–voltage characteristics of conventional VLEDs and VLEDs with different TCEs. Inset shows reverse leakage current characteristics of conventional VLEDs and VLEDs with different TCEs. (b), Light output power versus injection current characteristics for conventional VLEDs and VLEDs with different TCEs. (c), Microscopic light emission photographs of different VLED chip surfaces. The light emission images were obtained at injection currents of 50 and 150 mA for clear comparison. Relative light emission intensities are indicated by the color bar located in the right-hand side of the light emission images.

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