Efficiency enhancement of organic based Light Emitting Diodes using a scattering layer
File(s)
Working paper
Author(s)
Oulton, RF
Adjiman, CS
Handa, K
Aramaki, S
Type
Report
Abstract
This paper presents an investigation of organic LED extraction efficiency enhancement using a low refractive index scattering layer. A scattering model is developed based on rigorous electromagnetic modelling techniques. The model accounts for proportions of scattered guided and radiation modes as well as the efficiencies with which emitted and scattered light are extracted. Constrained optimisation techniques are implemeneted for a single operation wavelength to maximise the extraction efficiency of a generic OLED device. Calculations show that a 2 fold efficiency enhancement is achievable with a correctly engineered scattering layer. The detailed analysis of the enhancement mechanism highlights ways in which this scheme could be improved.
Date Issued
2014-12-23
Copyright Statement
© 2004 The Authors
Description
22.12.14 KB. OK to add working paper to spiral, author retain copyright
Identifier
http://arxiv.org/abs/physics/0411095v1
Notes
8 Pages, 5 Figures: To be submitted to Journal of Applied Physics