Karani, A., Yang, L., Bai, S., Futscher, M. H., Snaith, H. J., Ehrler, B., … Di, D. (2018). Perovskite/Colloidal Quantum Dot Tandem Solar Cells: Theoretical Modeling and Monolithic Structure. ACS Energy Letters, 3(4), 869–874. doi:10.1021/acsenergylett.8b00207
Abstract:
Metal-halide perovskite-based tandem solar cells show great promise for overcoming the Shockley–Queisser single-junction efficiency limit via low-cost tandem structures, but so far, they employ conventional bottom-cell materials that require stringent processing conditions. Meanwhile, difficulty in achieving low-bandgap (11% absolute gain) to the ultimate efficiency via photon recycling. We report an initial experimental demonstration of a solution-processed monolithic perovskite/CQD tandem solar cell, showing evidence for subcell voltage addition. We model that a power conversion efficiency of 29.7% is possible by combining state-of-the-art perovskite and CQD solar cells.
License type:
Attribution 4.0 International (CC BY 4.0)
Funding Info:
L.Y. thanks the Agency of Science, Technology and Research (A*STAR) Singapore for financial sponsorship. The work of B.E. and M.H.F. is part of the Netherlands Organization for Scientific Research (NWO). D.D. and N.C.G. acknowledge the Engineering and Physical Science Research Council (EPSRC) (grant codes: EP/M005143/1 and EP/P02484X/1) and St John’s College, Cambridge for support.