Stability and developability of silver and gold latent-image centres.

Y.V. Fedorov, V.N. Zakharov

Proceedings of IS&T's 50-th Annual Conferences, 1997, Cambridge, Massatusetts, USA, p.152-153.

ABSTRACT. The basis of the classical photographic process in silver halide emulsions consists of photochemical nucleation and subsequent electrochemical growth of the silver clusters to metallic phase. However the problem of the nature and size of the silver clusters capable to initiate the development ofemulsion grains remains not enough clear. The present report is devoted to process of silver centres growth in silver bromide microcrystals and other substances based on the concepts of the thermodynamics ofnew phase formation and growth taking intoaccount results obtained by means of electron microscope studies. Furthermore the peculiarities of activity and stability of clusters formed by metal nobler than silver are discussed too.

Laboratory of Structural Chemistry