Physics · Solar Cells

A photon in the visible blue region (energy ~ 2.8 eV) irradiates a silicon solar cell (band gap ~ 1.1 eV). Approximately how much energy of the photon will be wasted as heat? (h = 6.6 × 10 -34 Js)

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

~ 1.7 eV

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A photon in the visible blue region (energy ~ 2.8 eV) irradiates a silicon solar cell (band gap ~ 1.1 eV). Approximately how much energy of the photon will be wasted as heat? (h = 6.6 &times; 10 -34 Js)