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Which mechanism causes photocurrent reduction in non-ideal solar cells?

A)Surface electron-hole recombination increases strongly
B)Increased bulk material charge trapping
C)Photon transmittance through electrodes lessens
D)Edge depletion region cross-section drops

💡 Explanation

Surface passivation defects cause the photoelectric response drop due to surface state recombination. The Shockley-Read-Hall recombination increases, because it produces excess trapped charges at the surface; therefore, photocurrent diminishes rather than merely changing bulk material resistivity.

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