Stable low-bandgap Pb-Sn binary perovskites for tandem solar cells
- Univ. of Washington, Seattle, WA (United States)
A low-bandgap (1.33 eV) Sn-based MA0.5FA0.5Pb0.75Sn0.25I3 perovskite is developed via combined compositional, process, and interfacial engineering. It can deliver a high power conversion efficiency (PCE) of 14.19%. Lastly, a four-terminal all-perovskite tandem solar cell is demonstrated by combining this low-bandgap cell with a semitransparent MAPbI3 cell to achieve a high efficiency of 19.08%.
- Research Organization:
- Univ. of Washington, Seattle, WA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Contributing Organization:
- This work was supported by the Office of Naval Research (N00014-14-1-0246), the Asian Office of Aerospace R&D (FA2386-15-1-4106), and the Department of Energy SunShot (DE-EE0006710). A.K.-Y.J. thanks the Boeing-Johnson Foundation for financial support. Z.Y. thanks the financial support from Washington Research Foundation Innovation Fellowship. Part of this work was conducted at UW NNCI Washington Nanofabrication Facility and Molecular Analysis Facility (Supported in part by the National Science Foundation, Grant No. ECC-1542101) at University of Washington. The authors thank the material synthesis from Francis Lin. The authors also thank Chun-Chih Huang for the steady state PL measurement.
- Grant/Contract Number:
- EE0006710
- OSTI ID:
- 1343608
- Report Number(s):
- DOE-UW-Jen-33
- Journal Information:
- Advanced Materials, Vol. 28, Issue 40; ISSN 0935-9648
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 271 works
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