The feasibility of a thin layer prepared by blending polyurethane ionomer (PUI) with poly(p-phenylene vinylene) (PPV) for the fabrication of light-emitting electrochemical cell (LEC) was investigated. The observed electroluminescence (EL) at a much lower turn on voltage favors the use of PPV + PUI composite film as a light-emitting layer for LEC. Further, the utility of this blend owns superior response time and stability. (C) 2003 Elsevier Science B.V. All rights reserved.