Advancements in Far Infrared Light Emitting Diode Technology: Exploring Innovations and Applications

Far infrared light emitting diode (FIR LED) is a type of semiconductor device that emits infrared light at a wavelength of 780 nm to 3000 nm. It has been widely used in various fields such as medical treatment, environmental protection, agriculture, and military. This article will introduce the industry of FIR LED, including its working principle, types, applications, and market prospects.

Working Principle of FIR LED

The working principle of FIR LED is based on the semiconductor material’s ability to emit light when it is excited by electric current. The semiconductor material used in FIR LED is usually gallium arsenide (GaAs), gallium phosphide (GaP), or indium gallium arsenide phosphide (InGaAsP). When the electric current passes through the semiconductor material, electrons and holes are generated. When these electrons and holes recombine, photons are emitted, and the infrared light is produced.

Types of FIR LED

FIR LED can be divided into several types according to the material and structure. The following are the main types:

1. AlInGaP FIR LED: This type of FIR LED has a longer wavelength than GaAs FIR LED and is suitable for applications requiring a wider detection range.

2. InGaAs FIR LED: It has a longer wavelength than GaP FIR LED and is suitable for applications requiring higher sensitivity.

3. InGaAsP FIR LED: This type of FIR LED has a shorter wavelength than GaP FIR LED and is suitable for applications requiring higher intensity.

4. Surface Emitting FIR LED: This type of FIR LED has a higher light output and is suitable for applications requiring a large area of light emission.

5. Edge Emitting FIR LED: This type of FIR LED has a lower cost and is suitable for mass production.

Applications of FIR LED

FIR LED has a wide range of applications due to its unique optical and thermal properties. The following are some of the main applications:

1. Medical Treatment: FIR LED can be used for pain relief, wound healing, and physical therapy. It has a therapeutic effect on human skin and promotes blood circulation.

2. Environmental Protection: FIR LED can be used for gas detection, water quality monitoring, and pollution control. It has high sensitivity and can detect various pollutants in the environment.

3. Agriculture: FIR LED can be used for plant growth, disease control, and insect repellent. It can promote plant growth and improve crop yield.

4. Military: FIR LED can be used for night vision, target detection, and communication. It has high sensitivity and can be used in various military applications.

5. Industrial: FIR LED can be used for machine vision, process control, and material testing. It has high accuracy and can be used in various industrial applications.

Market Prospects of FIR LED

The market for FIR LED is growing rapidly due to its wide range of applications and increasing demand. The following are some of the factors driving the market growth:

1. Technological Innovation: The continuous innovation of FIR LED technology has led to the development of new products with higher performance and lower cost.

2. Government Support: Many governments around the world are investing in the research and development of FIR LED technology, which has promoted the development of the industry.

3. Environmental Protection: With the increasing awareness of environmental protection, FIR LED has become an important part of the green industry.

4. Market Demand: The demand for FIR LED in various fields is increasing, which has driven the growth of the market.

In conclusion, FIR LED is a promising industry with wide application prospects. With the continuous development of technology and market demand, FIR LED will play an increasingly important role in various fields in the future.