Semiconductor refer to materials whose conductive properties are between those of conductors and insulators at room temperature.
Semiconductors are used in integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting, high-power power conversion and other fields. For example, diodes are devices made of semiconductors.
The importance of semiconductors is huge, both from a technological and economic perspective. The core units in most electronic products, such as computers, mobile phones or digital recorders, are closely related to semiconductors.
Common semiconductor materials are silicon, germanium, gallium arsenide and so on. Silicon is one of the most influential semiconductor material applications.