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Opto-electronic Devices (Solar Cells, Photo-detectors, Leds) Video Lecture | CSIR NET Crash Course for Physical Science - CSIR NET Physical Science

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FAQs on Opto-electronic Devices (Solar Cells, Photo-detectors, Leds) Video Lecture - CSIR NET Crash Course for Physical Science - CSIR NET Physical Science

1. What are opto-electronic devices?
Ans. Opto-electronic devices are electronic devices that can source, detect, and control light. This includes solar cells, photo-detectors, and LEDs.
2. How do solar cells work?
Ans. Solar cells convert sunlight into electricity through the photovoltaic effect. When sunlight hits the solar cell, it creates an electric current by separating positive and negative charges in the material.
3. What are the applications of photo-detectors?
Ans. Photo-detectors are used in various applications such as light sensors, optical communications, imaging devices, and medical instruments for detecting light and converting it into an electrical signal.
4. What is the function of LEDs?
Ans. Light Emitting Diodes (LEDs) are semiconductor devices that emit light when an electric current passes through them. They are widely used in lighting, displays, indicators, and automotive applications.
5. How can opto-electronic devices contribute to renewable energy?
Ans. Opto-electronic devices like solar cells play a crucial role in generating renewable energy by converting sunlight into electricity. This helps reduce reliance on fossil fuels and decreases carbon emissions.
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