Lee, MMikulik, DPark, S2018-11-082018-11-082018-11-08201810.1039/c8ra01347khttps://infoscience.epfl.ch/handle/20.500.14299/151088WOS:000431976000047The investigation of in situ removal of Si substrates for freestanding GaN crystals by HVPEtext::journal::journal article::research article