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Title: Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells

Lead thiocyanate in the perovskite precursor can increase the grain size of a perovskite thin film and reduce the conductivity of the grain boundaries, leading to perovskite solar cells with reduced hysteresis and enhanced fill factor. A planar perovskite solar cell with grain boundary and interface passivation achieves a steady-state efficiency of 18.42%.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [3] ;  [2] ;  [2] ;  [3] ;  [3] ;  [3] ;  [3] ;  [2] ;  [2] ;  [2] ;  [7] ;  [4] ;  [3]
  1. Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo OH 43606 USA; Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072 China; National Renewable Energy Laboratory, 15013 Denver West Parkway Golden CO 80401 USA
  2. National Renewable Energy Laboratory, 15013 Denver West Parkway Golden CO 80401 USA
  3. Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo OH 43606 USA
  4. Department of Mechanical Engineering and Materials Science, Duke University, Durham NC 27708 USA; Department of Chemistry, Duke University, Durham NC 27708 USA
  5. Department of Mechanical Engineering and Materials Science, Duke University, Durham NC 27708 USA
  6. Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo OH 43606 USA; National Renewable Energy Laboratory, 15013 Denver West Parkway Golden CO 80401 USA
  7. Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan University, Wuhan 430072 China
Publication Date:
OSTI Identifier:
1265054
Report Number(s):
NREL/JA-5K00-66441
Journal ID: ISSN 0935-9648
DOE Contract Number:
AC36-08GO28308
Resource Type:
Journal Article
Resource Relation:
Journal Name: Advanced Materials; Journal Volume: 28; Journal Issue: 26
Publisher:
Wiley
Research Org:
NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
Sponsoring Org:
USDOE SunShot Initiative
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE grain boundary passivation; hysteresis; interface passivation; perovskite solar cells