Compared with element semiconductors, compound semiconductors have the following advantages:

Physical characteristics:
higher electron mobility:The electron mobility of compound semiconductors is generally much higher than that of elemental semiconductors. For example, the electron mobility of gallium arsenide (GaAs) is about 5-6 times higher than that of silicon (Si). This makes compound semiconductors have better performance in high-frequency applications, can respond to changes in electrical signals faster, and are suitable for high-frequency, high-speed electronic devices, such as microwave communications, radar and other fields.
band width more flexible:Compound semiconductors can flexibly change the band gap by adjusting the composition and structure of the material. Wide band gap compound semiconductors (such as silicon carbide (SiC), gallium nitride (GaN)) have higher breakdown electric field, higher thermal conductivity and other characteristics, can work stably in harsh environments such as high temperature, high pressure, and high power, and are suitable for manufacturing high-power devices, power electronic devices, etc.; narrow band gap compound semiconductors have unique applications in infrared detection, optical communications and other fields.
Better photoelectric performance:Some compound semiconductors have a direct band gap structure, which means that they can generate electron-hole pairs more efficiently under the excitation of light, and thus have better luminous efficiency and photoelectric conversion efficiency. For example, optoelectronic devices such as light-emitting diodes (LEDs) and laser diodes based on compound semiconductors are superior to similar devices based on elemental semiconductors in terms of brightness, luminous efficiency, and the like.

Material characteristics:
Strong anti-radiation ability:Compound semiconductors have relatively high performance stability in radiation environments, and are more suitable for applications in aerospace, satellite communications and other fields that require extremely high reliability. For example, in a space environment, compound semiconductor devices are better able to resist the effects of radiation such as cosmic rays.
Good temperature characteristics: compound semiconductors have relatively small performance degradation at high temperatures and can work normally at higher temperatures. In contrast, the performance of elemental semiconductors (such as silicon) at high temperatures will be significantly reduced. This makes compound semiconductors advantageous in electronic devices in high-temperature environments, such as electronic control units around automobile engines, sensors in high-temperature industrial environments, and the like.

Customizability Aspects:
Material composition can be regulated:Compound semiconductors can be composed of a variety of elements, and by changing the type, proportion and combination of elements, the performance of the material can be precisely controlled to meet the needs of different application scenarios. This customizability provides more possibilities for developing semiconductor devices with specific functions.
Easy to realize heterojunction structure:Compound semiconductors can easily form a heterojunction structure with other semiconductor materials, and use the energy band structure difference between different materials to achieve effective control and transmission of electrons and holes, thereby improving the performance of the device. For example, in semiconductor lasers, solar cells and other devices, the application of heterojunction structures can significantly improve the efficiency and performance of the device.

Application areas:
In the field of high frequency communication obvious advantages:Due to the good high-frequency characteristics of compound semiconductors, in high-frequency communication systems such as 5G communication and satellite communication, they can provide higher bandwidth, lower signal loss and better signal transmission quality as materials for radio frequency devices. High-speed and large-capacity communication is of great significance.
Potential in the field of power electronics:Wide bandgap compound semiconductors have broad application prospects in the field of power electronics. They can withstand higher voltages and currents, have lower on-resistance and switching losses, can improve power conversion efficiency, reduce equipment volume and weight, and play an important role in promoting energy conservation and emission reduction and the development of new energy industries, such as In the application of charging piles, on-board chargers, motor drivers, etc. of electric vehicles.