Title :
Efficiency limits for space multi-junction concentrator solar cells
Author :
Shaodong, Ma ; Hongling, Peng ; Wei, Chen ; Bin, Jiang ; Zheng Wanhua
Abstract :
Efficiency limits of single-junction and multi-junction concentrator solar cells are established from the thermodynamic principle of detailed balance. The maximum efficiency limit of single-junction solar cells is 35% at 500 suns, while that of 2-junction solar cells which meet the current matching condition is 46%. At the same condition, the maximum efficiency limit of 3-junction solar cells with GaAs as middle subcell is 52%.
Keywords :
III-V semiconductors; gallium arsenide; solar cells; solar energy concentrators; 2-junction solar cells; 3-junction solar cells; GaAs; current matching condition; maximum efficiency limit; single-junction concentrator solar cells; space multijunction concentrator solar cells; thermodynamic principle; Epitaxial growth; Gallium arsenide; Junctions; Photonic band gap; Silicon; Sun; concentrator; current matching; efficiency limits; multi-junction; solar cells;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930803
