PDU-C111

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Photodiodes are semiconductor devices that respond to light and are commonly used as sensors and detectors. The PDU-C111 is a photodiode that is specifically designed for applications in the visible light spectrum. It is widely used in optical applications, such as fiber-optic networks and the luminescence of fluorescent materials. Because of its low cost, this photodiode is also used for UV monitoring, light intensity measurement, and as an optical sensor for image processing.

The PDU-C111 is an integrated photodiode that consists of a diode and a focusing lens. The diode is made up of a P-type substrate and an N-type semiconductor layer deposited on it. The N-type layer is formed by doping impurities such as arsenic and boron. This layer is sensitive to light and generates current when illuminated. The focusing lens focuses the light onto the N-type layer, thereby increasing the intensity of the generated current.

The PDU-C111’s active area is active in the visible light spectrum and has a very fast response time. It can detect light from wavelengths ranging from 380 nm to 2000 nm. This photodiode is designed for a reverse bias voltage of up to 30 volts, and its peak current is 2 mV/lux. It has a spectral sensitivity of approximately 0.2 A/W at 630 nm.

The PDU-C111’s working principle is simple yet effective. When a light source with a wavelength in the visible spectrum is shined onto the photodiode, electrons in the N-type layer are excited and liberated. These liberated electrons flow towards the P-type substrate, creating a current. This current is detected by the focusing lens, and its amplitude depends on the intensity of the light source.

The PDU-C111 is a versatile and inexpensive photodiode that is designed for use in a variety of applications. It can be used to measure light intensity, monitor UV radiation, and used as an optical sensor for image processing. Additionally, its fast response time makes it perfect for use in fiber-optic networks and monitoring luminescence in fluorescent materials. The PDU-C111 has been widely adopted in these applications due to its reliable performance, low cost, and ready availability.

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