Bulk heterojunction organic solar cell was irradiated

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When a bulkheterojunction organic solar cell was irradiated with monochromatic light of 8 mW/cm2, it showed the short circuit photocurrent of 3 mA/cm2. Find at which wavelength (nm) the monochromatic light was irradiated. The external quantum efficiency was 60%.

Reference no: EM13231315

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