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Difficulty: EasyRenewable Energy and Clean Technologies

Which of the following clean energy technologies directly converts solar radiation into electricity using semiconductor materials through the photovoltaic effect?

  1. Solar Photovoltaic TechnologyAnswer
  2. B
    Concentrated Solar Power Technology
  3. C
    Solar Thermal Collector Technology
  4. D
    Geothermal Power Technology

Answer

Solar Photovoltaic Technology directly converts solar radiation into electrical energy using semiconductor materials.
Solar Photovoltaic Technology absorbs solar photons using semiconductor materials (such as silicon), releasing electrons to produce a direct electrical current. This is a direct physical transformation without an intermediate thermal or mechanical stage.

Step-by-Step Solution

1
Identify the primary mechanism described in the question.
The mechanism is the direct conversion of light (photons) into electricity using semiconductor materials.
Understanding the working principle distinguishes direct photon-to-electron energy conversion from thermal thermodynamic cycles.
2
Evaluate the energy conversion process of solar photovoltaic systems.
When light shines on a photovoltaic semiconductor cell, absorbed photons knock electrons free, creating an electric current.
This physical phenomenon is precisely defined as the photovoltaic effect.
3
Compare against alternative solar and clean energy technologies.
Concentrated solar power and solar thermal systems rely on thermal energy capture rather than direct semiconductor electrical conversion.
Ensures accurate technical classification among different renewable energy technologies.

Key Concept

Photovoltaic Effect and Solar PV Working Principle
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Topics

Renewable Energy and Clean Technologies

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