Solar Power and Solar Cells

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Questions and Answers

What is the shape of the solar modules?

  • Rectangular
  • Octagonal (correct)
  • Triangular
  • Circular

Who discovered the photovoltaic (PV) effect?

  • Russel Oh
  • Albert Einstein
  • Alexandre-Edmond Becquerel (correct)
  • Nikola Tesla

What is the purpose of the p-type and n-type junction in photovoltaic solar cells?

  • To increase energy efficiency
  • To reduce energy consumption
  • To form electron holes and produce electricity (correct)
  • To absorb energy from photons

What are the most common materials used in photovoltaic solar cells?

<p>Silicon, cadmiumtelluride, and copper-indium-gallium-selenide (B)</p> Signup and view all the answers

What is the result of a photon with sufficient energy impinging on the p-type and n-type junction in photovoltaic solar cells?

<p>An electron is expelled and travels to the next layer (C)</p> Signup and view all the answers

What is the classification of photovoltaic solar cells based on?

<p>Their material composition (C)</p> Signup and view all the answers

What is the primary function of a solar cell?

<p>To convert light energy into electrical energy (C)</p> Signup and view all the answers

What is the approximate maximum open circuit voltage of a single-junction silicon solar cell?

<p>0.5V to 0.6V (A)</p> Signup and view all the answers

Why is there a need for inexpensive alternatives to fossil fuels?

<p>Because fossil fuels are unable to sustain our current energy requirements (B)</p> Signup and view all the answers

What is a solar cell in its most basic form?

<p>A p-n junction diode (D)</p> Signup and view all the answers

What is a characteristic of the manufacturing process of organic devices?

<p>It does not require expensive processing steps (D)</p> Signup and view all the answers

What is a characteristic of a photoelectric cell?

<p>Its electrical characteristics change when exposed to light (C)</p> Signup and view all the answers

What is the advantage of using solar cells as an energy source?

<p>They are a clean source of energy that is free of emissions and noise (C)</p> Signup and view all the answers

What can individual solar cells be combined to form?

<p>Solar panels (B)</p> Signup and view all the answers

What is the purpose of generating electricity using organic solar cells?

<p>To alleviate some of the world's energy problems (D)</p> Signup and view all the answers

What type of energy do solar cells transform into electrical energy?

<p>Light energy (A)</p> Signup and view all the answers

What is the photovoltaic effect used for in a solar cell?

<p>To convert light energy into electrical energy (C)</p> Signup and view all the answers

What is the characteristic of the first generation of solar cells?

<p>They were made of silicon single crystals grown on Si wafers (D)</p> Signup and view all the answers

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