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Title: Metastable Dion-Jacobson 2D structure enables efficient and stable perovskite solar cells

Journal Article · · Science
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  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Univ. of Toledo, OH (United States)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States); Univ. of Colorado, Boulder, CO (United States)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  5. Princeton Univ., NJ (United States)
  6. Univ. of Arizona, Tucson, AZ (United States)
  7. National Renewable Energy Lab. (NREL), Golden, CO (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  8. 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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journal June 2013
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