Periodic nanostructuring for guided mode extraction in organic light-emitting diodes

Julian Hauss; Boris Riedel; Sebastian Gleiss; Ulf Geyer; Uli Lemmer; Martina Gerken

doi:10.1117/1.3544495

1 January 2011 Periodic nanostructuring for guided mode extraction in organic light-emitting diodes

Julian Hauss, Boris Riedel, Sebastian Gleiss, Ulf Geyer, Uli Lemmer, Martina Gerken

Author Affiliations +

Journal of Photonics for Energy, Vol. 1, Issue 1, 011012 (January 2011). https://doi.org/10.1117/1.3544495

Abstract

We investigated guided mode extraction in organic light-emitting diodes and compare the experimental findings to transfer matrix (T-matrix) and finite difference time domain (FDTD) simulations. To this end, we patterned the indium tin oxide anode with Bragg gratings with lattice constants from 300 to 600 nm and varied the depth of the grating structures. The structuring was done by laser interference lithography and plasma etching. Both techniques allow for a rapid large area processing. We measured angle resolved electroluminescent spectra of the nanostructured devices and reference devices. To obtain the mode distribution in the devices we made use of T-matrix simulations. In addition we performed FDTD simulations of the emission characteristics of the patterned devices. The simulations are in agreement with our experimental findings and give insight into the outcoupling mechanisms.

Citation Download Citation

Julian Hauss, Boris Riedel, Sebastian Gleiss, Ulf Geyer, Uli Lemmer, and Martina Gerken "Periodic nanostructuring for guided mode extraction in organic light-emitting diodes," Journal of Photonics for Energy 1(1), 011012 (1 January 2011). https://doi.org/10.1117/1.3544495

Published: 1 January 2011

ACCESS THE FULL ARTICLE

JOURNAL ARTICLE
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY