Physics20775 marksconductors, insulators and semiconductors
The energy gap in silicon is 1.1 eV, whereas in diamond it is 6 eV. What conclusion can you draw about the transparency of the two materials to visible light (4000 text Acirc text to 7000 text Acirc)?
The energy gap in silicon is 1.1 eV, whereas in diamond it is 6 eV. What conclusion can you draw about the transparency of the two materials to visible light ($4000 \text{ A}^{\circ} \text{ to } 7000 \text{ A}^{\circ}$)? [5]
Material Band Gap Energy (Eg) -------------------------------- Silicon (Si) 1.1 eV Diamond 6.0 eV Visible light wavelength range: 4000 A° to 7000 A° --- The energy of a photon is given by: $$E = hf = \frac{hc}{\lambda}$$ $$E = \frac{hc}{\lambda} = \frac{6.62 \times 10^{-34} \times 3 \times 10^{8}...