Question
A common light-emitting diode is made with gallium arsenide phosphide (GaAsP) and emits red light at $650 \mathrm{nm}$. What's its band gap?
Step 1
Step 1: First, we need to understand that the energy of a photon is given by the equation $E = \frac{hc}{\lambda}$, where $h$ is Planck's constant, $c$ is the speed of light, and $\lambda$ is the wavelength of the light. Show more…
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Find the wavelength of light emitted by a gallium phosphide (GaP) light-emitting diode. (Hint: See Table 37.1 ).
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