K+-free mica-assisted epitaxy of Bi-based chalcogenide and oxychalcogenide single-crystals (opens in new tab)

A material family that intrinsically hosts topological, high-mobility semiconducting and ferroelectric properties offers a platform for exploring new physical phenomena and advancing next-generation electronics and optoelectronics. Bismuth-based chalcogenides and oxychalcogenides are especially promising in this context due to their compositionally tunable functionalities. However, their development is hindered by the lack of a general, scalable synthesis method, as existing approaches are ma...