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Keywords:

  • electron transfer;
  • electronic conduction;
  • metal–non-metal transition;
  • proteins;
  • semiconductors
Thumbnail image of graphical abstract

A new vision for ET: Electron-transfer (ET) processes in biological and synthetic materials (such as proteins and semiconductors, respectively) are of immense importance. A unified approach to describe these processes is useful in understanding, and controlling the various facets of electron transfer in condensed matter. The diagram shows a plot of the decay constant for the electron-tunneling process against the effective tunneling barrier in different materials.