Figure 1: Schematic of the key steps involved in the process of formation of graphene oxide-embedded LED. | Nature Communications

Figure 1: Schematic of the key steps involved in the process of formation of graphene oxide-embedded LED.

From: Improved heat dissipation in gallium nitride light-emitting diodes with embedded graphene oxide pattern

Figure 1

(a) The formation of circular arrays of photoresist masks on the sapphire substrate by photolithography process. (b) Deposition of graphene oxide on the sapphire substrate by the spray-coating method. (c) Removal of photoresist using acetone (during this step the graphene oxide film with arrays of hole patterns is created). (d) Thermal reduction and direct growth of GaN epilayer structure on the rGO pattern (here the hole arrays made on the graphene oxide facilitates the direct growth of GaN).

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