The material used in making (fabricating) solar cells is:
Correct answer: B. Iron
- A. Carbon
- B. Iron
- C. Silicon
- D. Mercury
Explanation
The material primarily used in fabricating solar cells is silicon.Silicon is the most widely used semiconductor material in the production of solar cells due to its abundance, stability, and suitable semiconductor properties for converting light energy into electricity through the photovoltaic effect. While other materials, such as cadmium telluride or copper indium gallium selenide (CIGS), are also used in specific types of solar cells, silicon-based solar cells remain the most common and widely deployed in the industry.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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