Controllable co-segregation synthesis of wafer-scale hexagonal boron nitride thin films.

Zhang, Chaohua; Fu, Lei; Zhao, Shuli; Zhou, Yu; Peng, Hailin; Liu, Zhongfan · Adv Mater · 2014

basic_science · Level V

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Abstract

A facile and scalable co-segregation method is used to grow hexagonal boron nitride (h-BN) thin films from B- and N-containing metals. By annealing the sandwiched metal substrates in vacuum, sub-monolayer h-BN flakes, monolayer h-BN films, and multilayer h-BN thin films of varying thickness are successfully prepared. This approach follows an underneath-growth mode and exhibits good thickness- and location-control.