Silver halide photographic emulsion and light-sensitive material containing the same, and image-forming method using the light-sensitive material

A silver halide photographic light-sensitive material, which contains a silver halide photographic emulsion comprising silver halide grains, wherein 50% or more of the projected area of the silver halide grains contained is occupied by tabular grains having an aspect ratio of 2 or more and a grain thickness of 0.2 μm or less that have a phase containing 10% or more of silver bromide, and wherein in the phase, the tabular grains each contain a metal complex dopant in an amount necessary to increase the density of dislocations.

A silver halide color photographic light-sensitive material containing a silver halide emulsion and a developing agent on a support, wherein at least one kind of the silver halide emulsion is a silver halide emulsion comprising silver halide grains, in which 50% or more of the projected area of the silver halide grains contained is occupied by tabular grains having an aspect ratio of 2 or more and grain thickness of 0.2 μm or less that have a phase containing 10% or more of silver bromide, and wherein the grains contain a metal complex dopant having, as a ligand, an organic compound that does not have any electronic charge and that does not form any coordination bond with a metal other than the central metal, or with a metal ion thereof, in which the number of the organic compound exceeds one-half of the coordinaiton number of the metal atom (when the ligand is a multidentate ligand, the number of coordinating atoms in the ligand exceeds one-half of the coordination number of the central metal, and the ligand is an organic compound that does not have any charge and that does not form any coordination bond with a metal other than the central metal or with a metal ion thereof).

A silver halide color photographic light-sensitive material containing a silver halide emulsion and a developing agent on a support, wherein at least one kind of the silver halide emulsion is a silver halide emulsion comprising silver halide grains, in which 50% or more of the projected area of the silver halide grains contained is occupied by tabular grains having an aspect ratio of 2 or more and grain thickness of 0.2 μm or less that have a phase containing 10% or more of silver bromide, and wherein the grains contain a metal complex dopant having, as a ligand, an organic compound that has a moiety capable of having a negative charge, in which the number of the organic compound exceeds one-half of the coordination number of the metal atom.

A silver halide photographic emulsion, wherein the average equivalent-circle diameter of the total tabular grains among the silver halide grains contained (an average diameter of a circle equivalent to a projected area of individual grain) is 2.0 to 4.0 μm, and the tabular grains contain at least one metal complex having, as a ligand, a heterocyclic compound in number more than half of the coordination number of the metal atom (if the heterocyclic compound is a chelate compound, the number of the coordinated atom is regarded as the number of the heterocyclic compound).

A silver halide photographic light-sensitive material having a silver halide photographic emulsion, wherein the average equivalent-circle diameter of the total tabular grains among the silver halide grains contained (an average diameter of a circle equivalent to a projected area of individual grain) is 2.0 to 4.0 μm, and the tabular grains contain at least one metal complex having, as a ligand, a heterocyclic compound in number more than half of the coordination number of the metal atom (if the heterocyclic compound is a chelate compound, the number of the coordinated atom is regarded as the number of the heterocyclic compound).