Tuning of Metal Work Functions with Self‐Assembled Monolayers
B. de Boer(University of Groningen), Afshin Hadipour(University of Groningen), M. M. Mandoc(University of Groningen), T. van Woudenbergh(University of Groningen), P. W. M. Blom(University of Groningen)
Cited by 738Open Access
Abstract
Work functions of gold and silver are varied by over 1.4 and 1.7 eV, respectively, by using self-assembled monolayers. Using these modified electrodes, the hole current in a poly(2-methoxy-5-(2′-ethylhexyloxy)–1,4-phenylene vinylene) light-emitting diode is tuned by more than six orders of magnitude (see Figure). Suppression of the hole current enables measurement of the electron current in a polymer/polymer blend photovoltaic cell.
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