Introduction To The Application Fields Of Semiconductors

Semiconductors are used in integrated circuits, consumer electronics, communication systems, photovoltaic power generation, lighting applications, high-power power conversion and other fields.
Photovoltaic applications
The photovoltaic effect of semiconductor materials is the basic principle behind the operation of solar cells. At this stage, the photovoltaic application of semiconductor materials has become a hot topic and is currently the fastest growing and best-developed clean energy market in the world. The main material of solar cells is semiconductor material. The main criterion for judging the quality of solar cells is the photoelectric conversion rate. The higher the photoelectric conversion rate, the higher the working efficiency of the solar cell. According to the different semiconductor materials used, solar cells are divided into crystalline silicon solar cells, thin film cells and III-V compound cells.
Lighting applications
LED is a semiconductor light-emitting diode built on a semiconductor transistor. The semiconductor light source using LED technology is small in size and can be packaged flatly. It generates low heat during operation, is energy-saving and efficient, has a long product life, fast response speed, is green and pollution-free, and can also It was developed into a light, thin and short product. Once it came out, it quickly became popular and became a new generation of high-quality lighting sources. It is now widely used in our lives. It has applications in various fields such as traffic lights, backlight sources for electronic products, light sources for urban night scene beautification, and indoor lighting.
High power power conversion
The mutual conversion of alternating current and direct current is very important for the use of electrical appliances and is a necessary protection for electrical appliances. This requires the use of other power conversion devices. Silicon carbide has high breakdown voltage, wide bandgap, and high thermal conductivity. Therefore, SiC semiconductor devices are very suitable for applications in situations with high power density and switching frequency. Power conversion devices are one of them. The excellent performance of silicon carbide components in high temperature, high pressure and high frequency has made them widely used in deep well drilling, inverters in power generation devices, energy converters in electric hybrid vehicles, light rail train traction power conversion and other fields. Due to the advantages of SiC itself and the current industry demand for lightweight, high conversion efficiency semiconductor materials, SiC will replace Si and become the most widely used semiconductor material.