prov:value
| - As the conductive material, metal such as Ag, Au, Cu, Ni, Pt, Pd, Ir, Rh, W and Al, metallic sulfide such as Cd and Zn, oxide such as Fe, Ti, Si, Ge, Zr and Ba, a fine particle or a dispersant nanometer-size particle of silver halide or the like can be used.
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