Overview of light detection elements! Free technical materials available!
A photodiode (PD) is a light-receiving element that converts changes in light intensity into electrical signals (voltage, current) when light is irradiated onto the PN junction of a semiconductor. Photodiodes are classified into three types based on their characteristics and structure: PN-PD, PIN-PD, and APD. Understanding the differences in their characteristics allows for appropriate selection based on application. 【Overview of Contents】 - What is a photodiode? - Applications of photodiodes - Structure and principle of photodiodes - Equivalent circuit - Phototransistor We are offering a free explanatory document on the overview of light detection elements (photodiodes, phototransistors, and optical power supply elements)! Please download the PDF for more details. For more information about the photodiodes we handle, please feel free to contact us.
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【Product Overview】 ■Photodiode When the material is silicon (Si), it is sensitive to ultraviolet, visible light, and infrared (up to 1100nm) wavelengths. When compound semiconductors like InGaAs are used as the material, it is sensitive to longer wavelength infrared. It can be used for various sensing applications when combined with a light source. ■Phototransistor A phototransistor is a structure that integrates a photodiode and a transistor. It is a light-receiving element that amplifies the photocurrent generated by the photodiode using the transistor before outputting the current. ■Avalanche Photodiode An avalanche photodiode is a semiconductor device that multiplies photoelectrons by applying a reverse bias voltage. By performing this multiplication, it can achieve a larger photocurrent than a standard photodiode. It is suitable for detecting weak light. We also offer APD modules that can handle high reverse bias voltages. *For more details, please refer to the PDF document or feel free to contact us.
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We are currently offering a free explanatory document on the overview of optical detection devices (photodiodes, phototransistors, and optical power supply devices)! For more details, please download the PDF to obtain it.
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Dexerials Corporation has business offices and sales bases not only in Japan but also in Asia, including China, as well as in Europe and the United States. We continue to provide products with new value that meet customer needs tailored to each market. By adding new technologies to our existing products, we aim to maintain and strengthen our business. Moving forward, we will boldly challenge the automotive and life sciences sectors, steadily nurturing and expanding new businesses, while advancing the development of technologies that will pave the way for the future. As a company that creates new value that is not found anywhere else, we strive to maximize customer value and continue to challenge ourselves to become a trusted partner for our customers and society.