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导体、绝缘体、半导体可以从定义和实质两方面来区别。定义划分:物理学中,导体、绝缘体、半导体主要是根据导电性能的强弱来区分的;实质区别:导体、绝缘体、半导体实质上的区别在于构成它们的物质的微观结构不同。但是,导体、绝缘体、半导体之间没有绝对的界线,在外部条件(如温度、高压等)发生变化时,它们之间可以相互转化。
Conductor, insulator, semiconductor can be distinguished from both definition and essence. The definition of division: In physics, conductors, insulators, semiconductors are mainly based on the strength of conductive properties to distinguish; The essential difference: conductor, insulator, semiconductor is essentially the difference between the microstructure of the material that makes up them. However, there is no absolute boundary between conductors, insulators, and semiconductors. When external conditions (such as temperature, high voltage, etc.) change, they can be transformed into each other.