Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Excitation of waveguide modes in organic light-emitting diode structures by classical dipole oscillators

Not Accessible

Your library or personal account may give you access

Abstract

Analytical techniques known in the literature are used to (i) identify all the planar waveguide modes in four top-emitting organic light-emitting diode (OLED) structures over the visible spectrum, and (ii) compute both TM and TE power spectra for classically radiating dipoles in the emissive layers of these OLED structures. Peaks in the computed power spectra are identified with the waveguide modes in the OLED devices, and areas associated with these peaks are used to estimate the excitation probability of the waveguide modes. In cases where ambiguities arise because of overlapping peaks, it is shown that computed power spectra can be approximated as sums of Lorentzian line shapes. It is found that for all four structures, the dipoles couple almost 80% of their radiant energy into TM modes with only about 20% going into TE modes. Furthermore, except for a narrow spectral band, the excited TM modes are primarily short-range surface plasmon polaritons. Excitations in the narrow spectral band correspond to TM and TE Fabry–Perot microcavity modes. Finally, the analysis shows that, in the absence of grating couplers, only light in the microcavity modes escapes into the air cover.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
Waveguide analysis of organic light-emitting diodes fabricated on surfaces with wavelength-scale periodic gratings

Joseph F. Revelli, Lee W. Tutt, and Brian E. Kruschwitz
Appl. Opt. 44(16) 3224-3237 (2005)

Corrugated organic light-emitting diodes to effectively extract internal modes

Haowen Liang, Hao-Chun Hsu, Jiangning Wu, Xiaofeng He, Mao-Kuo Wei, Tien-Lung Chiu, Chi-Feng Lin, Jiu-Haw Lee, and Jiahui Wang
Opt. Express 27(8) A372-A384 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (16)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved