Structure and luminescence properties of 10-BN sheets

Isotopic (BN)-B-10 sheets were first prepared using graphene sheets as templates to react with (B2O3)-B-10. The edge-areas of BN sheets have much higher oxygen-doping ratios compared to other areas. The emission peak of X-ray excited optical luminescence spectra of the (BN)-B-10-sheets is broader and red-shifted because of the isotopic effect. A broad violet-blue emission at a wavelength centered at similar to 400 nm is assigned to the defect emission due to oxygen-doping and defects in the BN network.