Current Affairs Questions

Q.Consider the following statements about Solar Cells:

  1. Maximum theoretical efficiency of solar cells is around 98%.
  2. Perovskite layer solar cells have efficiency close to 75%.
  3. Inkjet printing procedure of perovskite solar cells have lowered the production cost.

Which of the above statements is/are true?

(a) 1 and 2 only (b) 2 and 3 only

(c) 1, 2 and 3 (d) 3 only

Ans: (d)

Explanation

Maximum theoretical efficiency of solar cells is around 30-33% (as per Shockley-Quiesser Limit). Traditional solar cells have an efficiency of 18-20%, but perovskite layer solar cells have efficiency of around 25-27%.

What is Perovskite?

It is a mineral composed of Calcium Titanate (CaTio3), but Perovskite coated ....

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