What Are the Different Types of Semiconductor Material?

Semiconductor material (semiconductor material) is a class of electronic materials with semiconductor properties (conductivity between conductor and insulator, resistivity in the range of 1m · cm 1G · cm), which can be used to make semiconductor devices and integrated circuits.

Substances and materials in nature can be divided according to their electrical conductivity.

Semiconductor materials can be divided according to chemical composition, and then the structure and performance are more special.

Its stable structure, excellent electrical characteristics, and low cost can be used to make field effect transistors widely used in modern electronic equipment.

Scientists say that the latest research is expected to make artificial skin, smart bandages, flexible displays, smart windshields, wearable electronic devices and electronic wallpapers a reality.

The main reason for the high cost is that electronic products such as televisions, computers and mobile phones are made of silicon, which is very expensive to manufacture. Carbon-based (plastic) organic electronic products are not only easy to manufacture, low in cost, but also light, flexible, and flexible. Electronic equipment is ubiquitous ".

Previous studies have shown that the larger the carbon structure, the better its performance. But scientists have never worked out effective ways to make larger, stable, soluble carbon structures for research, until the Zucescu team developed this new organic semiconductor material used to make transistors. .

Organic semiconductor is a plastic material that has a special structure that makes it conductive. In modern electronic equipment, circuits use transistors to control the current between different areas. Scientists have studied new organic semiconductor materials and explored the relationship between their structure and electrical properties.

Preparation of different semiconductor devices has different morphological requirements for semiconductor materials, including single crystal slices,

Single crystal preparation

In order to eliminate the huge influence of the grain boundary between the small crystals in the polycrystalline material on the characteristic parameters of the semiconductor material, the base material of the semiconductor device generally uses a single crystal. Single crystal preparation can generally be divided into large volume single crystal (ie bulk single crystal) preparation and thin film single crystal preparation. The bulk single crystal has high output, high utilization rate, and is relatively economical. However, many device structures require thin single crystals with a thickness of the order of microns. Due to the lower temperature required to prepare thin layer single crystals, better quality single crystals can often be obtained. Specific preparation methods are: from melting

Pulled single crystal in the body: use small single crystals of the same material as the melt as the seed crystal, when the seed crystal

The size of the characteristic parameters of the semiconductor material and the impurities present in the material

In the middle of the 20th century, the invention of single crystal silicon and semiconductor transistors and the successful development of their silicon integrated circuits led to the revolution of the electronics industry; the invention of quartz optical fiber materials and GaAs lasers in the early 1970s promoted the rapid development of optical fiber communication technology and The formation of high-tech industries has gradually brought humanity into the information age. The concept of superlattice and the successful development of semiconductor superlattice and quantum well materials have completely changed the design idea of optoelectronic devices, and made the design and manufacture of semiconductor devices from "impurity engineering" to "energy band engineering". The development and application of nanoscience and technology will enable human beings to control, manipulate and manufacture powerful new devices and circuits at the atomic, molecular or nanoscale level, which will profoundly affect the world's political and economic structure and the form of military confrontation. Completely change people's lifestyle.