High efficiency thin-film gallium arsenide solar cells

砷化镓太阳能电池的最新发展已经使效率超过了30%。在空间应用中广泛采用基于砷化镓的太阳能电池也带来了材料成本的大幅降低。然而，砷化镓电池仍然比硅电池贵得多。这项应用致力于开发一种可制造的剥离砷化镓薄膜的技术。这种方法由于减少了材料使用量而显著降低了成本，同时保持了高效率。还将开发用于升空电池的光捕获技术，这将使性能接近理论极限，并研究砷化镓中的基本工艺。

Recent developments in GaAs-based solar cells have led to efficiencies above 30%. Widespread adoption of GaAs-based solar cells for space applications has also brought about large reductions in material costs. However, GaAs cells are still much more expensive than silicon cells. This application addresses the development of a manufacturable technique for lifting off thin films of GaAs. This approach allows a significantly reduced cost due to reduced materials usage, while maintaining high efficiency. Light-trapping for lifted-off cells will also be developed, which will allow the theoretical limit to performance to be approached, and fundamental processes in GaAs to be investigated.