2016 Graduate Fellows

Peifeng Jing

Improving light management for halide perovskite solar cell efficiency with photonic crystal

Sustainable solar energy offers an attractive alternative to fossil fuels in the long term. Recently, inorganic halide perovskite have risen to the forefront of photovoltaics research, offering the potential to combine low-cost fabrication with high power-conversion efficiency. One of the challenges for thin-film perovskite solar cells is capturing the solar energy efficiently. The reflection and limited absorption of light is a significant issue limiting the efficiency of thin-film perovskite solar cells; therefore, optimizing the device structure to reduce optical loss is critical. I will focus on using photonic crystal structures as highly efficient solar energy concentrators for thin-film perovskite solar cells. The photonic crystal structure modulates and concentrates the incident light field in the thin-film area, and does not have the heating and resistive energy dissipation issues as plasmonic structures.

Advisor: Lih Y. Lin, Electrical Engineering

Product of Lasting Value: Video on photonic crystals

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