| abstract |
A radiation-sensitive emulsion is disclosed comprised of silver halide grains (a) containing greater than 50 mole percent chloride, based on silver, (b) having greater than 50 percent of their surface area provided by {100} crystal faces, and (c) having a central portion accounting for from 95 to 99 percent of total silver and containing two dopants selected to satisfy each of the following class requirements: (i) a hexacoordination metal complex which satisfies the formula (I)[ML6]nwherein n is zero, -1, -2, -3 or -4; M is a filled frontier orbital polyvalent metal ion, other than iridium; and L6 represents bridging ligands which can be independently selected, provided that least four of the ligands are anionic ligands, and at least one of the ligands is a cyano ligand or a ligand more electronegative than a cyano ligand; and (ii) an iridium coordination complex containing a thiazole or substituted thiazole ligand. A photographic recording element comprising a support and at least one light sensitive silver halide emulsion layer comprising silver halide grains as described above is also disclosed, as well as an electronic printing method which comprises subjecting a radiation sensitive silver halide emulsion layer of a recording element to actinic radiation of at least 10-4 ergs/cm2 for up to 100 mu seconds duration in a pixel-by-pixel mode, wherein the silver halide emulsion layer is comprised of silver halide grains as described above. |