与晶体半导体不同,这是一种在结构上原子,分子或离子配列的空间位置处于无规则的状态,具有长程位置无序,短程有序的半导体。因为结构等特点很象玻璃,所以无定形半导体又称为玻璃半导体,非晶态半导体等。正常态下,它是绝缘体或高阻体,但当外界条件(如电场、光、压力或温度等)的作用超过阈值时,就可呈现半导体的导电性质。 In contrast to crystalline semiconductors, this is a semiconducting structure in which atoms, molecules or ions in a structure are arranged in a random position in space and have a disorderly long-range, short-range order. Because the structure is very similar to the characteristics of glass, amorphous semiconductors, also known as glass semiconductor, amorphous semiconductor. Normally, it is an insulator or a high resistance body, but when the external conditions (such as electric field, light, pressure or temperature) exceeds the threshold, it can present the conductivity of the semiconductor.