Recent activity in Direct and indirect band-gap semiconductors

The longest wavelength that can be absorbed by silicon, which has the bandgap of $1.12 \; \mathrm{eV}$, is $1$. If the longest wavelength that can be absorbed by another ...

The bandgap of Silicon at room temperature is$1.3 \; \mathrm{eV}$$0.7 \; \mathrm{eV}$$1.1 \; \mathrm{eV}$$1.4 \; \mathrm{eV}$