Dopant gives silver halide film an efficiency high
Conventional silver halide photographic film loses a large percentage of its photoinduced electrons to fast recombination with holes, thus reducing the film's light-capturing efficiency. Researchers at the Universite Paris-Sud (Paris, France) and Agfa-Gevaert (Mortsel, Belgium) have come close to eliminating this problem by doping the silver halide with formate ions.