Journal
ELECTROCHIMICA ACTA
Volume 50, Issue 19, Pages 3878-3885Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2005.02.052
Keywords
light-emitting electrochemical cell; lifetime; turn-on time; frozen junction; phase separation
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A brief review is given on the operational mechanism and performance of various types of polymer light-emitting electrochemical cells (LECs). We discuss two key characteristics of LECs-the turn-on time and the operational lifetime-in the context of ion mobility, phase separation and electrochemical stability, and we propose that, with the appropriate selection of materials and pre-treatment, ternary {polymer + small molecule + salt} and single-component LECs could offer the desired combination of a fast turn-on time and long lifetime during device operation at room temperature. (c) 2005 Elsevier Ltd. All rights reserved.
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