High-Efficiency Si/Polymer Hybrid Solar Cells Based on Synergistic Surface Texturing of Si Nanowires on Pyramids

1. Lining He^1,2,3, 
2. Donny Lai^1,3, 
3. Hao Wang¹,
4. Changyun Jiang^2,*, 
5. Rusli^1,3,*

Article first published online: 21 MAR 2012

DOI: 10.1002/smll.20110209

An efficient Si/PEDOT:PSS hybrid solar cell using synergistic surface texturing of Si nanowires (SiNWs) on pyramids is demonstrated. A power conversion efficiency (PCE) of 9.9% is achieved from the cells using the SiNW/pyramid binary structure, which is much higher than similar cells based on planar Si, pyramid-textured Si, and SiNWs. The PCE is the highest reported to-date for hybrid cells based on Si nanostructures and PEDOT