Review of emission and lifetime data concerning Cu+ fluorescence in alkalihalides

A review of the relevant data concerning the decay properties of the Cu+ fl uorescence in alkali halides is presented. A critical analysis of the exper iments reported in literature shows that the problem of the correct and com plete interpretation of the Cu+ fluorescence was made complicated in the pa st essentially because of historical reasons. The validity of the decay mod els was ascertained by the authors by simultaneously detecting both lifetim e and quantum yield during each set of measurements as a function of the te mperature.