Molecular Flip-Flop

Molecular Flip-Flop

Author: David Bradley

Researchers from the University of Huelva, Spain, and Chalmers University of Technology, Sweden, have exploited the photochromic fluorescence switching of a fulgimide derivative to build and operate an all-optical D (delay) flip-flop device.

The D flip-flop device is widely used in silicon-based microelectronics. It takes an input D and after a short, one-clock-cycle delay, outputs Q, acting as a primitive memory cell. The development of a molecular equivalent that can be switched repeatedly takes us another small step closer to molecular electronics and specifically molecular optoelectronics.

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