Single 2D crystal becomes a transistor with built-in insulation and contacts

Researchers demonstrated a transistor built entirely from a single 2D crystal that combines a semiconductor, an insulating dielectric and metallic contacts. The approach simplifies device integration as semiconductors approach the atomic scale.

• The transistor is made from one 2D crystal instead of three materials
• The crystal serves as semiconductor, dielectric and metallic contacts
• The method eases integration at the atomic scale