Question

The material selected for solar cell fabrication has

• A. band gap ($1.0$ to $1.8eV$)
• B. high optical absorption (${10}^{4}c{m}^{-1}$)
• C. electrical conductivity
• D. band gap ($0.4$ to $1.eV$)

Answer 1

Answer: (A), (B), (C)

The correct options are
A band gap ($1.0$ to $1.8eV$)
B high optical absorption (${10}^{4}c{m}^{-1}$)
C electrical conductivity

The materials selected for solar cell fabrication is crystalline silicon, and the band gap of crystalline silicon is around $1.12eV$ and band gap of amorphous silicon is $1.7-1.8eV$.

They have high quality of absorption light in $IR$ wavelength and silicon is a semiconductor so, it is electrical conductivity also.

Therefore the materials selected for solar cell fabrication has.

1.Band Gap$\left(1.0to1.8eV\right)$.

2.High optical absorption$\left({10}^{4}c{m}^{-1}\right)$

3. Electrical conductivity.