Figure 1

The Schematic epitaxial structure of four samples. (a) Sample A1 is the blue LED for display, and sample A2 is the blue LED for lighting. (b) Sample B is the green LED for display, and (c) Sample C is the red LED for display.

The Schematic epitaxial structure of four samples. (a) Sample A1 is the blue LED for display, and sample A2 is the blue LED for lighting. (b) Sample B is the green LED for display, and (c) Sample C is the red LED for display.