Title :
Silicon-based multi-junction solar cell with 19.7% efficiency at 1-sun using areal current matching for 2-terminal operation
Author :
Yang, Jingfeng ; Cheong, Dan ; Rideout, Joshua ; Tavakoli, Shahram ; Kleiman, Rafael
Author_Institution :
Dept. of Eng. Phys., McMaster Univ., Hamilton, ON, Canada
Abstract :
The areal current matching technique is introduced as a novel method to achieve current matching in multi-junction solar cells for 2-terminal operation. A hybrid-integrated InGaP/(In)GaAs/Si 3-junction tandem cell is demonstrated for the first time, showing 1 sun AM1.5G efficiency of 19.7% in 2-terminal operation, with an area of 0.89 cm2.
Keywords :
gallium arsenide; indium compounds; silicon; solar cells; 1 sun AM1.5G; 2-terminal operation; InGaP-(In)GaAs-Si; areal current matching technique; efficiency 19.7 percent; hybrid-integrated 3-junction tandem cell; multijunction solar cell; Epitaxial growth; Gallium arsenide; Limiting; Photovoltaic cells; Silicon; Sun;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-9966-3
DOI :
10.1109/PVSC.2011.6186125
