These single‐molecule switches are distinguished by their use of internal vibrational and rotational modes for conductance control, offering low‐voltage operation and polarity‐independent response. The invariance of the fullerene exterior simplifies device assembly and enhances robustness against environmental perturbations. Hierarchical switching among multiple enantiomeric states in the Sc3N@C80 system provides a platform for complex logic and memory functions, while the Li@C60 embodiment highlights prospects for nanoelectromechanical systems. Tunable properties and extreme miniaturization make these architectures stand out among molecular electronic technologies.
Description
Researchers have developed a new type of molecular, electronic switch. This switch is ideal for integration into massively parallel computing architectures on the molecular scale.
Applications
Molecular memory devices
Molecular logic gates
Nanoelectromechanical switches
Ultra-dense data storage
Atomic-scale transistors
Advantages
Constant external fullerene cage simplifies device integration by maintaining a uniform shape
Encapsulated atom or cluster is protected from external disturbances, enhancing reliability
Single‐molecule size enables ultra‐high‐density circuit integration
Low‐threshold, polarity‐independent conductance switching minimizes power consumption
Multistate switching (Sc₃N@C₈₀) offers advanced memory and logic functionality
Conductance behavior can be tuned via choice of cage, encapsulate species, and electrode materials
Compatibility with nanoelectromechanical systems (NEMS) and molecular electronics platforms
IP Status
https://patents.google.com/patent/US8878596B2
