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A Depletion‐Free, Ionic, Self‐Assembled Recombination Layer for Tandem Polymer Solar Cells
Author(s) -
Lee Jinho,
Kang Hongkyu,
Kong Jaemin,
Lee Kwanghee
Publication year - 2014
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201301226
Subject(s) - tandem , materials science , cationic polymerization , polymer , ionic bonding , layer (electronics) , polyelectrolyte , nanotechnology , optoelectronics , ion , polymer chemistry , chemistry , organic chemistry , composite material
An innovative method for achieving depletion‐free recombination layers (RLs) in inverted tandem polymer solar cells is demonstrated using ionic self‐assembly of a cationic non‐conjugated polyelectrolyte and an anionic metallic polymer. These RLs form tunnel junctions with different work functions of 5.1 eV and 3.9 eV on each of their surfaces. The tandem solar cells containing these RLs exhibit solar power conversion efficiencies exceeding 8.3%.