Which consequence results when band gap decreases within perovskite solar cells?

💡 Explanation

Increased *electron-hole recombination* occurs because a smaller band gap allows electrons and holes to more easily transition between bands, enhancing their meeting probability; therefore recombination rises, rather than raising voltage or short circuit current or reducing light absorption efficiency under normal device conditions.

• Which outcome occurs when high humidity causes surface water layer to form on ionic crystal?
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• Which outcome reduces data readout accuracy when using a Coherent anti-Stokes Raman Scattering (CARS) microscope?
• Which outcome results when an Otto cycle engine experiences pre-ignition?
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