Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Univ. of Toledo, OH (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Princeton Univ., NJ (United States)
- Univ. of Arizona, Tucson, AZ (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Univ. of Kentucky, Lexington, KY (United States)
The performance of three-dimensional (3D) organic-inorganic halide perovskite solar cells (PSCs) can be enhanced through surface treatment with 2D layered perovskites that have efficient charge transport. We maximized hole transport across the layers of a metastable Dion-Jacobson (DJ) 2D perovskite that tuned the orientational arrangements of asymmetric bulky organic molecules. The reduced energy barrier for hole transport increased out-of-plane transport rates by a factor of 4 to 5, and the power conversion efficiency (PCE) for the 2D PSC was 4.9%. With the metastable DJ 2D surface layer, the PCE of three common 3D PSCs was enhanced by approximately 12 to 16% and could reach approximately 24.7%. For a triple-cation–mixed-halide PSC, 90% of the initial PCE was retained after 1000 hours of 1-sun operation at ~40°C in nitrogen.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; US Department of the Navy, Office of Naval Research (ONR); National Science Foundation (NSF)
- Grant/Contract Number:
- AC36-08GO28308; FOA-0002064; EE0008790; AC02-76SF00515; N00014-20-1-2440; CMMI-1824674; DMR-1420541; AC02-05CH11231
- OSTI ID:
- 1835536
- Alternate ID(s):
- OSTI ID: 1862339
- Report Number(s):
- NREL/JA-5900-79906; MainId:39124; UUID:f1961fb0-aea7-4054-ae67-4b3dcdd07a71; MainAdminID:63382
- Journal Information:
- Science, Vol. 375, Issue 6576; ISSN 0036-8075
- Publisher:
- AAASCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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