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Title: Stable low-bandgap Pb-Sn binary perovskites for tandem solar cells

A low-bandgap (1.33 eV) Sn-based MA 0.5FA 0.5Pb 0.75Sn 0.25I 3 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 MAPbI 3 cell to achieve a high efficiency of 19.08%.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Univ. of Washington, Seattle, WA (United States)
Publication Date:
Report Number(s):
DOE-UW-Jen-33
Journal ID: ISSN 0935-9648
Grant/Contract Number:
EE0006710
Type:
Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 28; Journal Issue: 40; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Research Org:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Contributing Orgs:
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.
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY
OSTI Identifier:
1343608