Far infrared light emitting diode (FIR LED) is a type of semiconductor device that emits far infrared light. As a cutting-edge technology, FIR LED has been widely used in various fields such as medical treatment, environmental protection, and industrial automation. This article will introduce the basic principles, application fields, and development trends of FIR LED technology.

Basic Principles of FIR LED

FIR LED is a semiconductor device that converts electrical energy into far infrared light. The working principle of FIR LED is based on the electron-hole recombination process in the semiconductor material. When the forward bias voltage is applied to the semiconductor material, electrons and holes are injected into the active region of the semiconductor. Under the action of the electric field, electrons and holes move towards the respective electrodes, and recombine in the active region. During the recombination process, a part of the energy is released in the form of far infrared light. The far infrared light emitted by FIR LED has a wavelength range of 7.5μm to 15μm, which is beyond the visible light range. The far infrared light has strong penetration and can be easily transmitted through the air, water, and various materials. Therefore, FIR LED has excellent performance in terms of energy conversion efficiency, wavelength controllability, and long service life.

Application Fields of FIR LED

1. Medical Treatment FIR LED technology has been widely used in medical treatment. The far infrared light emitted by FIR LED can stimulate the metabolism of cells, promote the regeneration of tissues, and improve the immune function of the human body. Currently, FIR LED is used in the following fields: FIR LED therapy for pain relief: FIR LED can penetrate the skin and reach the affected area, thereby reducing pain and inflammation. FIR LED therapy for wound healing: FIR LED can promote the growth of new blood vessels and accelerate the healing of wounds. FIR LED therapy for cancer treatment: FIR LED can be used in combination with other cancer treatment methods to improve the therapeutic effect. 2. Environmental Protection FIR LED technology has great potential in environmental protection. The far infrared light emitted by FIR LED can effectively decompose harmful substances in the air and water, and can also be used to deodorize and sterilize. Currently, FIR LED is used in the following fields: FIR LED air purification: FIR LED can decompose formaldehyde, benzene, and other harmful substances in the air, and improve the air quality. FIR LED water purification: FIR LED can decompose organic pollutants in water, and improve the water quality. FIR LED deodorization and sterilization: FIR LED can be used in household appliances, medical equipment, and other fields to achieve deodorization and sterilization. 3. Industrial Automation FIR LED technology has been widely used in industrial automation. The far infrared light emitted by FIR LED can be used for optical communication, temperature measurement, and other applications. Currently, FIR LED is used in the following fields: FIR LED optical communication: FIR LED can be used for long-distance, high-speed data transmission in industrial automation systems. FIR LED temperature measurement: FIR LED can be used for precise temperature measurement in industrial production processes. FIR LED sensor: FIR LED can be used to detect various physical quantities, such as temperature, humidity, and pressure, in industrial automation systems.

Development Trends of FIR LED

1. High Efficiency and Low Power Consumption As the application fields of FIR LED continue to expand, the demand for high-efficiency and low-power FIR LED devices is increasing. In the future, the development of FIR LED technology will focus on improving the energy conversion efficiency and reducing the power consumption of FIR LED devices. 2. Miniaturization and Integration With the continuous development of semiconductor technology, FIR LED devices will gradually become smaller and more integrated. This will enable FIR LED to be applied in more fields and achieve better performance. 3. Customization and Application Innovation In the future, FIR LED technology will continue to develop in the direction of customization and application innovation. New types of FIR LED devices will be developed to meet the needs of various application fields. In conclusion, FIR LED technology has excellent performance and broad application prospects. With the continuous development of technology, FIR LED will play a more significant role in various fields in the future.