940nm LED, also known as infrared LED, has been a hot topic in the industry in recent years. As a member of the infrared spectrum, 940nm LED has excellent performance and wide application prospects. This article will introduce the 940nm LED industry from its basic principles, technical characteristics, application fields, and market trends.

Basic Principles of 940nm LED

940nm LED is a kind of light-emitting diode with a wavelength of 940nm in the infrared spectrum. It is made of semiconductor materials such as gallium arsenide (GaAs) and aluminum gallium arsenide (AlGaAs). When the forward bias voltage is applied to the PN junction of the semiconductor material, electrons and holes are recombined, releasing energy in the form of photons. The photons emitted have a wavelength of 940nm, which is in the infrared spectrum.

Technical Characteristics of 940nm LED

Compared with other types of LEDs, 940nm LED has the following technical characteristics: 1. High infrared wavelength: The wavelength of 940nm LED is in the near-infrared range, which is less affected by ambient light and has good penetration ability. 2. High efficiency: With the continuous optimization of technology, the luminous efficiency of 940nm LED has been greatly improved, reaching up to 100lm/W. 3. Long life: The service life of 940nm LED is relatively long, generally up to 50,000 hours or more. 4. Low cost: With the continuous expansion of production scale, the cost of 940nm LED is gradually decreasing, which has a certain cost advantage in the market.

Application Fields of 940nm LED

940nm LED has a wide range of application fields, mainly including: 1. Remote control: 940nm LED can be used as the light source of remote control, with high anti-interference ability and stable transmission distance. 2. Biometric recognition: 940nm LED can be used as the light source of biometric recognition, such as fingerprint recognition, face recognition, and iris recognition. 3. Communication: 940nm LED can be used as the light source of optical communication, with high data transmission rate and long transmission distance. 4. Medical treatment: 940nm LED can be used as the light source of medical treatment, such as phototherapy and laser treatment. 5. Security monitoring: 940nm LED can be used as the light source of security monitoring, with good night vision effect.

Market Trends of 940nm LED

With the continuous development of technology and the expansion of application fields, the market demand for 940nm LED is increasing. The following are the current market trends: 1. Market demand is growing: The rapid development of the Internet of Things, biometric recognition, and other industries has driven the demand for 940nm LED. 2. Technological innovation: Continuous innovation in materials, structure, and process technology has improved the performance and cost of 940nm LED. 3. Market competition: With the entry of more enterprises, the market competition of 940nm LED is becoming increasingly fierce. 4. Market expansion: The application fields of 940nm LED are expanding, and the market prospects are promising. In conclusion, 940nm LED has excellent performance and wide application prospects. With the continuous development of technology and the expansion of market demand, the 940nm LED industry is expected to achieve rapid development in the future.