Estimate the maximum possible collection efficiency for a germanium solar cell (Egap = 0.66 eV). 25.4 The direct band gap in silicon is 3.4 eV. What is the 25.3 max Ncollection maximum possible collection efficiency (for incident thermal radiation at 6000 K) for excitations over this gap?

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Q: a) 61.3N b) 47.2N c) 33.4N d) 74.58N

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