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The solar spectrum has a spectral mismatch with the band gap of the absorber material of a single junction solar cell. Area's I, II, III and IV in the figure above correspond to different mechanisms in which the energy of the light is utilized. Which of the following statements is FALSE? 0.9 0.8 0.7 0.6 IV 0.5 0.4 0.3 0.2 II 0.1 0.5 1 1.5 2 2.5 Bandgap energy (eV) Fraction of incident photon energy

The solar spectrum has a spectral mismatch with the band gap of the absorber material of a single junction solar cell. Area's I, II, III and IV in the figure above correspond to different mechanisms in which the energy of the light is utilized. Which of the following statements is FALSE? 0.9 0.8 0.7 0.6 IV 0.5 0.4 0.3 0.2 II 0.1 0.5 1 1.5 2 2.5 Bandgap energy (eV) Fraction of incident photon energy

Question
The solar spectrum has a spectral mismatch with the band gap of the absorber material of a single junction solar cell. Area's I, II, III and IV in the figure above correspond to different mechanisms in which the energy of the light is utilized. Which of the following statements is FALSE? 0.9 0.8 0.7 0.6 II IV 0.5 0.4 0.3 0.2 II 0.1 0.5 1 1.5 2 2.5 Bandgap energy (eV) The solar spectrum has a spectral mismatch with the band gap of the absorber material of a single junction solar cell. Area's I, II, Il and IV in the figure above correspond to different mechanisms in which the energy of the light is utilized. Which of the following statements is FALSE? Area IV corresponds to losses of photons with energies smaller than the band gap Area Il corresponds to heat losses related to the excess energy of the absorbed photons. For multi-junction solar cells areas Il and IV are reduced in reference to Figure 1. Area I corresponds to the maximum energy of the light which can be converted in to electricity including the losses of charge carriers recombination. Area III corresponds to the energy used to excite an electron from the valence to conduction band Fraction of incident photon energy 3.
Transcribed Image Text:The solar spectrum has a spectral mismatch with the band gap of the absorber material of a single junction solar cell. Area's I, II, III and IV in the figure above correspond to different mechanisms in which the energy of the light is utilized. Which of the following statements is FALSE? 0.9 0.8 0.7 0.6 II IV 0.5 0.4 0.3 0.2 II 0.1 0.5 1 1.5 2 2.5 Bandgap energy (eV) The solar spectrum has a spectral mismatch with the band gap of the absorber material of a single junction solar cell. Area's I, II, Il and IV in the figure above correspond to different mechanisms in which the energy of the light is utilized. Which of the following statements is FALSE? Area IV corresponds to losses of photons with energies smaller than the band gap Area Il corresponds to heat losses related to the excess energy of the absorbed photons. For multi-junction solar cells areas Il and IV are reduced in reference to Figure 1. Area I corresponds to the maximum energy of the light which can be converted in to electricity including the losses of charge carriers recombination. Area III corresponds to the energy used to excite an electron from the valence to conduction band Fraction of incident photon energy 3.
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