Source: Proximal Lighting
The Science of Photovoltaics
Introduction
Photovoltaics is a technology that directly converts light energy into electricity. This conversion process is made possible by the principles of quantum physics, a significant scientific advancement of the 20th century.
Nature of Light
Light is a form of electromagnetic radiation that behaves both as a wave and as a stream of particles called photons. When light interacts with certain materials, such as semiconductors, it can excite electrons, causing them to move and generate an electric current.
Interaction with Matter
When photons from sunlight strike the surface of a photovoltaic cell, they transfer their energy to the electrons in the material. This energy excites the electrons, allowing them to flow as an electric current. By connecting multiple cells together, we can generate usable electrical power.
Conclusion
Understanding the science behind photovoltaics is crucial for developing more efficient solar energy technologies. By harnessing the power of sunlight through photovoltaic systems, we can reduce our dependence on fossil fuels and move towards a more sustainable future.
Source: Proximal Lighting
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