引言作者在前一篇文章中已讨论了不含多价阳离子杂质的AgBr微晶,在吸收能量小于3eV的光子后形成潜影的基元过程。采用的理论模型中,Ag_2、Ag_2O和Ag_2S分子提供给体中心,并且在未灰化和未曝光的颗粒中没有任何受体中心。在给体中心,激子或直接 Introduction The authors have discussed in the previous article the formation of a latent image of elementary AgBr crystallites that do not contain polyvalent cationic impurities after absorbing photons of less than 3 eV. In the theoretical model employed, Ag 2, Ag 2 O and Ag 2 S molecules are provided to the bulk center and have no acceptor centers in the un-ashed and unexposed particles. In donor centers, excitons or directly