Find the maximum wavelength of photons that can generate

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Find the maximum wavelength of photons that can generate carriers by being absorbed in the following semiconductors (respective band gap is given in parentheses): Ge (0.66 eV); GaAs (1.42 eV); CdS (2.45 eV). Are they in the region of ultraviolet, visible or infrared?

Reference no: EM13383432

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