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Boosting the Power Conversion Efficiency of Perovskite Solar Cells Using Self‐Organized Polymeric Hole Extraction Layers with High Work Function
Author(s) -
Lim KyungGeun,
Kim HakBeom,
Jeong Jaeki,
Kim Hobeom,
Kim Jin Young,
Lee TaeWoo
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401775
Subject(s) - materials science , photocurrent , work function , energy conversion efficiency , perovskite (structure) , boosting (machine learning) , heterojunction , planar , engineering physics , optoelectronics , function (biology) , efficient energy use , computer science , nanotechnology , layer (electronics) , electrical engineering , chemical engineering , artificial intelligence , physics , computer graphics (images) , engineering , evolutionary biology , biology
A self‐organized hole extraction layer (SOHEL) with high work function (WF) is designed for energy level alignment with the ionization potential level of CH 3 NH 3 PbI 3 . The SOHEL increases the built‐in potential, photocurrent, and power conversion efficiency (PCE) of CH 3 NH 3 PbI 3 perovskite solar cells. Thus, interface engineering of the positive electrode of solution‐processed planar heterojunction solar cells using a high‐WF SOHEL is a very effective way to achieve high device efficiency (PCE = 11.7% on glass).
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