Vapour-phase epitaxy

Vapor-phase epitaxy (VPE) is a technique used to grow very thin, high-quality semiconductor layers on a substrate. In VPE, gaseous chemicals are introduced into a controlled environment, where they react and deposit a crystalline layer onto a surface. This process allows precise control over the material’s composition and structure, making it essential for creating advanced electronic and optoelectronic devices like LEDs and solar cells. By carefully managing temperature and gas flow, VPE produces uniform, pure layers that are crucial for device performance.