采用光电化学方法研究了304不锈钢载波钝化膜在硼酸/硼砂溶液中的光电化学性质.通过测量钝化膜的光电流与入射光光子能量的关系和光电流与测量电位的关系,结合半导体理论,对载波钝化膜的半导体特性和结构进行了分析.结果表明,载波钝化膜是一高度无序的非晶态半导体膜且具有p型半导体特性.膜层的光电流对测量电位的响应在一定范围内符合Poole-Frenkel效应,但在其它范围内则具有一定的复杂性.
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