Silicon teams up with perovskites to form tandem solar cellsMarch 24, 2015
Traditional solar cells with a single band gap utilize less than half the energy in the solar spectrum. We’re developing “tandem,” or vertically stacked, solar cells, which aim to convert a greater percentage of incident sunlight into electricity. Our focus is on foundational technology development, including proof-of-principle demonstrations of device architectures and manufacturing approaches, methods to overcome key performance losses, and cost-performance modeling. Some of our tandem approaches may be suitable for low-cost manufacturing, appropriate for rooftop and flat-panel applications. We’re highly collaborative, as evidenced by the author lists below.
Summaries of our work:
- J.P. Mailoa, C.D. Bailie, E.C. Johlin, A.J. Akey, W.H. Nguyen, M.D. McGehee, T. Buonassisi, “A 2-terminal perovskite/silicon multijunction solar cell enabled by a silicon tunnel junction,” Applied Physics Letters 106, 121105 (2015); Supporting online material available: ftp://ftp.aip.org/epaps/appl_phys_lett/E-APPLAB-106-043510
- H. Liu, Z. Ren, Z. Liu, A.G. Aberle, T. Buonassisi, I.M. Peters, “The realistic energy yield potential of GaAs-on-Si tandem solar cells: a theoretical case study,” Optics Express 23, A382–A390 (2015)
- C.D. Bailie, M.G. Christoforo, J.P. Mailoa, A.R. Bowring, E.L. Unger, W.H. Nguyen, J. Burschka, N. Pellet, J.Z. Lee, M. Grätzel, R. Noufi, T. Buonassisi, A. Salleo, M.D. McGehee, “Semi-transparent perovskite solar cells for tandems with silicon and CIGS,”
Energy & Environmental Science 8, 956–963 (2015)