Far infrared LED, or far infrared light-emitting diode, is a type of semiconductor device that emits infrared light with a wavelength longer than 780nm. It has been widely used in various fields such as medical treatment, health care, agriculture, and environmental protection. This article will introduce the industry of far infrared LED, including its working principle, application fields, market status, and future development prospects.

Working Principle of Far Infrared LED

Far infrared LED is a semiconductor device that uses the principle of electroluminescence. When the forward voltage is applied to the PN junction of the semiconductor material, electrons and holes are recombined in the active layer, releasing energy in the form of photons. The photons emitted have a wavelength of 780nm to 15μm, which is in the far infrared region.

The semiconductor materials commonly used in far infrared LED include gallium arsenide (GaAs), gallium phosphide (GaP), and indium antimonide (InSb). These materials have strong absorption and emission properties in the far infrared region, which can efficiently convert electrical energy into far infrared light.

Application Fields of Far Infrared LED

Far infrared LED has a wide range of application fields due to its unique physical and chemical properties. The following are some typical application fields:

Medical Treatment

Far infrared LED can be used for physical therapy, pain relief, and wound healing. The far infrared light can penetrate the skin and promote blood circulation, improve metabolism, and enhance the body's immune function.

Health Care

Far infrared LED can be used for health care products such as far infrared lamps, far infrared heating pads, and far infrared blankets. These products can help people relax, relieve fatigue, and improve sleep quality.

Agriculture

Far infrared LED can be used for plant growth promotion, disease prevention, and pest control. The far infrared light can promote plant photosynthesis, improve plant growth, and enhance the quality and yield of agricultural products.

Environmental Protection

Far infrared LED can be used for environmental protection, such as deodorization and sterilization. The far infrared light can kill bacteria and viruses, and remove harmful substances from the air and water.

Market Status of Far Infrared LED Industry

The global far infrared LED market has been growing rapidly in recent years, driven by the continuous expansion of application fields and the improvement of technology. According to statistics, the global far infrared LED market size reached $XX billion in 2020, and is expected to reach $XX billion by 2025, with a compound annual growth rate of XX%.

The market demand for far infrared LED is mainly concentrated in the Asia-Pacific region, followed by Europe and North America. China, as the world's largest producer and consumer of far infrared LED, has the most competitive market advantage. In addition, the rapid development of the Internet of Things and smart city construction has also brought new opportunities for the far infrared LED industry.

Future Development Prospects of Far Infrared LED Industry

With the continuous advancement of technology and the expansion of application fields, the far infrared LED industry is expected to have the following development prospects:

Technology Innovation

The development of new materials, new processes, and new structures will further improve the performance and stability of far infrared LED. At the same time, the integration of far infrared LED with other technologies such as microelectronics, optoelectronics, and biotechnology will create new application scenarios.

Market Expansion

The continuous expansion of application fields will drive the growth of the far infrared LED market. In addition, the development of new markets such as the Internet of Things, smart city construction, and green energy will further promote the market demand for far infrared LED.

Industry Chain Optimization

The optimization of the industry chain will reduce production costs and improve product quality. The integration of upstream and downstream industries will promote the healthy development of the far infrared LED industry.