Title: Fabrication of high efficiency, III-V multi-junction solar cells for space concentrators
Abstract: High-efficiency multijunction cells have been fabricated for use in space concentrator modules at concentrations of 8-15 suns. Modeling and optimization efforts to modify Spectrolab's 1-sun cells for use at concentration are described. An experimental population of 200 cells of 3.5 cm/sup 2/ aperture area (4.2 cm/sup 2/ total area) grown using a variety of conditions had an average efficiency of 29.6% at 8 suns AMO. This population included several cells which exceeded 31% aperture area efficiency and 32% active area efficiency. A Spectrolab cell was measured in ENTECH's mini-concentrator module (at approximately 8 suns) with a combined lens/cell mini-module efficiency of 30.8% under outdoor sunlight, which-is, to our knowledge, the first time the 30% barrier has been broken for such a module.
Publication Year: 2003
Publication Date: 2003-10-31
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 14
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot