850nm infrared LED, also known as 850nm IR LED, is a type of light-emitting diode that emits infrared light at a wavelength of 850 nanometers. As a key component in the field of infrared technology, 850nm IR LED has been widely used in various applications such as infrared communication, infrared remote control, and infrared sensing. In this article, we will introduce the industry of 850nm IR LED, including its working principle, application fields, market trends, and future development prospects.
Working Principle of 850nm IR LED
850nm IR LED is a semiconductor device that emits infrared light when an electric current is applied. It is mainly composed of a p-n junction, which is made of a semiconductor material with a direct band gap, such as gallium arsenide (GaAs) or aluminum gallium arsenide (AlGaAs). When an electric current passes through the p-n junction, electrons and holes are recombined, releasing energy in the form of infrared light.
The emission wavelength of 850nm IR LED is determined by the energy gap of the semiconductor material. The energy gap of GaAs is about 1.43 eV, while the energy gap of AlGaAs is about 1.78 eV. By adjusting the composition of the semiconductor material, the emission wavelength of the 850nm IR LED can be accurately controlled.
Application Fields of 850nm IR LED
850nm IR LED has a wide range of application fields due to its excellent performance and characteristics. The following are some typical application areas:
- Infrared Communication: 850nm IR LED is widely used in infrared communication, such as wireless transmission of data, remote control, and infrared remote sensing. It has the advantages of high speed, low power consumption, and good anti-interference ability.
- Infrared Remote Control: 850nm IR LED is an essential component of infrared remote control devices, such as TVs, air conditioners, and other household appliances. It can send infrared signals to control the devices remotely.
- Infrared Sensing: 850nm IR LED is used in infrared sensors, such as human body sensors, temperature sensors, and motion sensors. It can detect the infrared radiation emitted by objects and convert it into electrical signals for processing.
- Medical Field: 850nm IR LED is applied in the medical field, such as photodynamic therapy and tissue oxygenation. It can be used to activate photosensitizers and promote the production of oxygen radicals, thus achieving the therapeutic effect.
- Automotive Industry: 850nm IR LED is used in automotive anti-theft systems, driver monitoring systems, and other automotive electronics. It can provide a reliable infrared signal for various applications.
Market Trends of 850nm IR LED
With the continuous development of technology and the expansion of application fields, the market demand for 850nm IR LED has been increasing. The following are some market trends of 850nm IR LED:
- Market Growth: The global 850nm IR LED market is expected to grow at a CAGR of about 8% from 2021 to 2026. The rapid development of the infrared technology industry has driven the growth of the 850nm IR LED market.
- Application Expansion: As the application fields of 850nm IR LED continue to expand, the market demand for various types of 850nm IR LED products will also increase. For example, the demand for high-power, high-brightness, and low-threshold 850nm IR LED products is growing rapidly.
- Technological Innovation: In recent years, the research and development of 850nm IR LED technology has been increasingly active. New materials, new structures, and new processes have been continuously emerging, which will further promote the development of the 850nm IR LED industry.
Future Development Prospects of 850nm IR LED
Looking ahead, the future development prospects of 850nm IR LED are promising. The following are some potential development trends:
- High Efficiency and Low Power Consumption: With the continuous optimization of material and structure, the efficiency and power consumption of 850nm IR LED will be further improved, making it more suitable for various applications.
- Miniaturization and Integration: The miniaturization and integration of 850nm IR LED devices will enable them to be used in more compact and portable electronic products.
- Environmental Protection and Recycling: As an important part of the electronic industry, the environmental protection and recycling of 850nm IR LED devices will be paid more attention to, promoting the sustainable development of the industry.
In conclusion, 850nm IR LED has a wide range of application fields and is an important component in the infrared technology industry. With the continuous development of technology and the expansion of application fields, the market demand for 850nm IR LED will continue to increase. It is expected that in the future, 850nm IR LED will play a more significant role in various industries, promoting the development of the entire infrared technology industry.