Very misleading title. From the article: "arrays absorb 96 percent of incident sunlight at a single wavelength." Sunlight is hardly monochromatic, and is in f

Very misleading title. From the article: "arrays absorb 96 percent of incident sunlight at a single wavelength." Sunlight is hardly monochromatic, and is in fact spread out over a very broad spectrum. More specifically, these cells can ostensibly absorb 96% of light with wavelength <= 1130 nanometers, which corresponds to the band gap energy of silicon. Also, the article does not address the important fact that absorbing light is not tantamount to converting it to electrical energy. Namely, any energy that a photon carries in excess of a semiconductor material's band gap (silicon's is 1.1 eV) is wasted as thermal energy. For silicon, which lies near the tail end of the sun's spectral curve, this means that about 61% of absorbed sunlight goes to thermal losses.