High efficiency cost effective solar cells are paramount for solar power to compete with traditional power generation. Currently, cost versus efficiency ratio of traditional crystalline silicon (c-Si) based solar cells is high due to various processing steps. On the other hand some state-of-the art solar cells have demonstrated external quantum efficiency (EQE) greater than 100%.However their manufacturing too entails high cost.Here we discuss two different architectures of Si based solar cells that our group has been working on, which overcome many of the efficiency and cost issues related to traditional solar cells. Our modeling and experimental work on different Si based solar cell architectures has demonstrated great potential, and is a clear indication that bulk Si based solar cells can continue to make a dominant impact in future commercial solar power generation.

High-efficiency, low cost Si solar cells

245th National Meeting (2013)

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