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Light-emitting electrochemical cells (LECs) are a new approach to achieving light emission from semiconducting (luminescent) polymers. The fabrication and structure of bright polymer LECs are described that operate at room temperature in the frozen p-i-n mode. Their performance characteristics are shown to be similar to those of polymer light-emitting diodes. Frozen-junction LECs are demonstrated to fulfill all the criteria for electroluminescent devices suitable for high pixel density, column–row addressable flat-panel displays.
Yu et al. (1998) studied this question.