A 'rock candy' method for assembling complex semiconductors (IMAGE)
Caption
A diagram shows how layers of two 2D materials – a perovskite (blue) and a metal halide (yellow) – assemble themselves out of chemicals tumbling around in water (left). The assembly is directed by linker molecules that look like barbells. Each end of a barbell (blue or yellow) carries a chemical template for growing one of the layers, and as the layers grow, the barbells link them together in the correct order. The new self-assembly technique, developed by SLAC and Stanford researchers, produces large crystals with a wide range of electronic properties.
Credit
Jiayi Li/Stanford University
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