搭板式结构卤化银微晶体制备及其性能

We prepared successfully a kind of silver bromoiodide microcrystal composite of pure silver iodide core and silver bromide shell using the double injector controlled by computer. The experimental processes were involved in three steps. The work in each step is to prepare a kind of crystals of silver halide. First, mono-dispersed tetrahedron microcrystal of pure silver iodide were prepared as crystal seeds. Second, the pure silver iodide deposited epitxially at the corners of the tetrahedron and formed four hexagonal bipyramids of silver iodide. Then, tabular silver bromoiodide crystals lateral grew on the surface of pyramid top. The complete micro-crystals contained four silver iodide framework and four tabular silver bromoiodide grains. The content of silver iodide in the inside of microcrystals could be controlled by changing the concentration ratio of I- and Br- ions. At the outside of the crystal can also cover a layer of pure silver bromide and inside can doped some sensitizers to improve the sensitive properties of the crystal.

研究四连双角锥碘化银晶体的制备、重结晶、外延生长过程和截头形成机理及影响因素；调控搭板式结构晶体内碘化银支架形成的最佳条件，研制内核碘含量为90%以上，外俏寤拇畎迨浇峁孤被澹芯烤迥诠馍亓髯臃掷牒颓ㄒ乒碳捌溆胝障嘈阅艿墓叵担厥馕⒕е票负托阅苎芯考奥被上癫牧系姆⒄固峁├砺垡谰荨?.