Identification and recovery of the trapped guided modes in LED structures using nanoscale texturing

Peter Hobson; Jon Arthur Edward Wasey; Ian Sage; William L. Barnes

doi:10.1117/12.470444

13 June 2002 Identification and recovery of the trapped guided modes in LED structures using nanoscale texturing

Peter Hobson, Jon Arthur Edward Wasey, Ian Sage, William L. Barnes

Proceedings Volume 4642, Organic Photonic Materials and Devices IV; (2002) https://doi.org/10.1117/12.470444
Event: Symposium on Integrated Optoelectronic Devices, 2002, San Jose, California, United States

Abstract

We report results of emission measurements from aluminium tris-8-hydroxyquinoline (Alq3) based devices to demonstrate that introducing nanostructure into organic light emitting diodes allows previously trapped modes within the device to be scattered out as far-field radiation. This significantly alters the angular emission pattern and polarization characteristics of the device, and may result in improved device efficiency. The various radiative and non-radiative emission paths have been calculated and used to identify the different modes observed in the emission.

Citation Download Citation

Peter Hobson, Jon Arthur Edward Wasey, Ian Sage, and William L. Barnes "Identification and recovery of the trapped guided modes in LED structures using nanoscale texturing", Proc. SPIE 4642, Organic Photonic Materials and Devices IV, (13 June 2002); https://doi.org/10.1117/12.470444

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