Fig. 21. A white LED device is a composite of red, green, and blue integrated LED chips, where WR and WG represent the width of the KSi and CaSi, respectively, and WB represents the width of the pristine 2D SiC as an active layer. Dielectric trenches (e.g., SiO2) provide lateral isolation. Each zone has a separate transparent top contact (e.g., ITO), with a shared N-type bottom contact.
