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Keywords:

  • Electroluminescence;
  • Light-emitting diodes, organic;
  • Quantum efficiency

As organic light-emitting devices emerge from the stage of being a research curiosity to that of becoming a practical appliance with important commercial applications, the need for a coherent and accurate standard technique for measuring device efficiencies becomes increasingly important. By following the methods described in this contribution, measurements made in disparate laboratories testing a wide range of materials and device structures should agree, to within small experimental errors, on the properties of the subject devices.