Turning molecules into reliable electronic devices

Molecules, the building blocks of innovative technologies, possess unique properties that could revolutionize electronics and computing. However, integrating these delicate materials into functional devices at scale has proven challenging. Researchers at MIT have developed a breakthrough technique that overcomes these obstacles, combining the scalability of traditional semiconductor manufacturing with the precision of self-assembly.

The team first fabricates the device components using conventional processes, then introduces molecular materials to self-assemble without causing damage. By leveraging nanoscale forces, such as capillary and van der Waals forces, they gently position the molecular layers onto the device, creating stable electrical contacts without compromising the molecules.

Demonstrating the effectiveness of their approach, the researchers fabricated over 1,000 devices with molecular layers just 1 nanometer thick. The fabricated chips exhibited a high yield of working devices, with 96 percent success rate, and remained stable even after tens of thousands of electrical cycles. This breakthrough technique not only ensures reliability but also opens up possibilities for creating smaller, faster, and more adaptable electronic devices, as well as higher-performance photonic devices and emerging quantum technologies.