Ruixi Qiao

TL;DR: The epitaxial growth of large single-crystal hexagonal boron nitride monolayers on low-symmetry copper foils is demonstrated and is expected to facilitate the wide application of 2D devices and lead to the epitaxials growth of broad non-centrosymmetric 2D materials, such as various transition-metal dichalcogenides20–23, to produce large single crystals.

TL;DR: It is shown that single-crystal graphene can be grown on copper foils with a growth rate of 60 μm-1, and single- Crystal graphene domains with a lateral size of 0.3 mm are able to be grown with just 5 s.

TL;DR: It is demonstrated that as-grown graphene can protect Cu(111) surface from oxidation in humid air lasting for more than 2.5 years, in sharp contrast with the accelerated oxidation of graphene-coated Cu(100) surface.

TL;DR: A novel approach to monitor the local strain vector in 2D molybdenum diselenide (MoSe2) by polarization-dependent optical second-harmonic generation (SHG) is reported, establishing that SHG is an effective approach for in situ, sensitive, and noninvasive measurement of local strainvector in noncentrosymmetric 2D materials.

TL;DR: The results elucidate the origin of transfer rate robustness against interlayer stacking configurations in optical devices based on 2D heterostructures, facilitating their applications in ultrafast and high-efficient optoelectronic and photovoltaic devices in the near future.