Hexagonal boron nitride (h-BN) single crystals are ideal as a substrate for 2D materials. h-BN crystals are highly crystalline display strong Raman peak at 1566 cm-1 with FWHM less than 5cm-1. It displays 5.2 eV band gap and is considered wide-band gap semiconductor / insulator. Chemically inert, atomically flat. Applications: Electronics Sensors - detectors STM – AFM applications Ultra-low friction studies (tribology) Materials science and semiconductor research