Common threads in imaging and photocatalysis: Silver, silver halides and semiconductors

Obvious common principles can be identified in imaging and in photocatalytic research. Initiation of chemical processes by absorption of photons, energy and electron transfer steps that follow the absorption of light, multi-electron events in a single confined micro-structure, thermal degradation of the photon energy are but few of the principles studied in both fields. It is, therefore, to be expected that similar techniques and similar chemical systems will be investigated from these two points of view. In the present overview we will discuss observations from photochemical and radiation chemical studies which were originally directed towards the photocatalytic field but might as well be of interest to the imaging community.