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How Electrode Work Function Affects Doping and Electroluminescence of Polymer Light‐Emitting Electrochemical Cells
Author(s) -
Hohertz Donna,
Gao Jun
Publication year - 2008
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.200800068
Subject(s) - materials science , electrode , electroluminescence , doping , optoelectronics , work function , electrochemical cell , electrochemistry , polymer , work (physics) , layer (electronics) , nanotechnology , composite material , chemistry , mechanical engineering , engineering
The electrode composition strongly affects nearly every aspect of light‐emitting electrochemical cell (LEC) operation. The electrode effect is explained in terms of the difference in electrode work function, which determines the efficiency of electronic charge injection at low doping levels. The results suggest that both the active layer and the electrodes should be considered and optimized in order to realize high‐performance LECs.