Patent ID: 9647163
Date: 2017-05-09
CPC Classifications: H01L,Y02E,Y02P

Claim:
1. A solar cell having a double-sided nanostructure comprising: a substrate; a first photogenerating layer disposed on a first surface of the substrate, the first photogenerating layer being configured to absorb light having a short wavelength; and a second photogenerating layer disposed on a second surface of the substrate and configured to absorb light having a long wavelength, the second surface of the substrate being opposite to the first surface of the substrate, wherein the first photogenerating layer comprises a first negative electrode disposed on the first surface of the substrate; first nanowires disposed on the first negative electrode and extending from a surface of the first negative electrode, the first nanowires respectively having a zinc oxide (ZnO) nanostructure; a first hole-transport layer including CuInS a second negative electrode disposed on the second surface of the substrate; second nanowires disposed on the second negative electrode and extending from a surface of the second negative electrode, the second nanowires respectively having a ZnO nanostructure; a second hole-transport layer including CuInGaS a second positive electrode on the second hole-transport layer.