Fig. 10

Stability of graphene on various substrates and at various temperatures. Raman spectra of graphene a on GaN at 950–1050 ºC. Figure reproduced from ref. [172], Wiley. b on AlN at 1100–1400 ºC c on Al₂O₃ at 1100–1400 ºC. d Illustration of occurrence of graphene-loss caused by generated nitrogen atoms through the decomposition of nitride-substrate. Figure reproduced from ref. [203], RCS Publishing. e The usage of desirable substrate for no graphene-loss and successful remote epitaxy under the III-nitride growth conditions