Patent ID: 7888591
Filing Date: 2011-02-15
Classification: H01L,Y02E

Abstract:
1. A silicon-based photovoltaic cell comprising a single-crystal silicon substrate, a glass covered on said silicon substrate, and a conversion layer sandwiched between said single-crystal silicon substrate and said glass, wherein said conversion layer absorbs ultraviolet rays, blue-purple or yellow-green light of the Sun's solar radiation and converts the absorption into a photoluminescent light; said conversion layer absorbs the maximum value of the Sun's solar radiation so that the maximum value of the photoluminescent spectrum of said conversion layer is within the photosensitive spectral zone of said single-crystal silicon substrate wherein said conversion layer has filled therein an ethyl acetoacetate or polycarbonate-based light-transmissive polymer that has evenly distributed therein a phosphor composed of α-Al 2 O 3 —Ti 2 O 3 at the volume concentration of 0.05%˜5%.