Light extraction from surface plasmons and waveguide modes in an organic light-emitting layer by nanoimprinted gratings

Jörg Frischeisen, Quan Niu, Alaa Abdellah, Jörg B. Kinzel, Robert Gehlhaar, Giuseppe Scarpa, Chihaya Adachi, Paolo Lugli, Wolfgang Brütting

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Organic light-emitting diodes (OLEDs) usually exhibit a low light outcoupling efficiency because a large fraction of power is lost to surface plasmons (SPs) and waveguide modes. In this paper it is demonstrated that periodic grating structures with almost ¼m-scale can be used to extract SPs as well as waveguide modes and therefore enhance the outcoupling efficiency in light-emitting thin film structures. The gratings are fabricated by nanoimprint lithography using a commercially available diffraction grating as a mold which is pressed into a polymer resist. The outcoupling of SPs and waveguide modes is detected in fluorescent organic films adjacent to a thin metal layer in angular dependent photoluminescence measurements. Scattering up to 5th-order is observed and the extracted modes are identified by comparison to the SP and waveguide dispersion obtained from optical simulations. In order to demonstrate the low-cost, high quality and large area applicability of grating structures in optoelectronic devices, we also present SP extraction using a grating structure fabricated by a common DVD stamp.

Original languageEnglish
Pages (from-to)A7-A19
JournalOptics Express
Volume19
Issue number101
DOIs
Publication statusPublished - Jan 3 2011

Fingerprint

plasmons
gratings
waveguides
gratings (spectra)
optoelectronic devices
light emitting diodes
lithography
photoluminescence
polymers
thin films
scattering
metals
simulation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Frischeisen, J., Niu, Q., Abdellah, A., Kinzel, J. B., Gehlhaar, R., Scarpa, G., ... Brütting, W. (2011). Light extraction from surface plasmons and waveguide modes in an organic light-emitting layer by nanoimprinted gratings. Optics Express, 19(101), A7-A19. https://doi.org/10.1364/OE.19.0000A7

Light extraction from surface plasmons and waveguide modes in an organic light-emitting layer by nanoimprinted gratings. / Frischeisen, Jörg; Niu, Quan; Abdellah, Alaa; Kinzel, Jörg B.; Gehlhaar, Robert; Scarpa, Giuseppe; Adachi, Chihaya; Lugli, Paolo; Brütting, Wolfgang.

In: Optics Express, Vol. 19, No. 101, 03.01.2011, p. A7-A19.

Research output: Contribution to journalArticle

Frischeisen, J, Niu, Q, Abdellah, A, Kinzel, JB, Gehlhaar, R, Scarpa, G, Adachi, C, Lugli, P & Brütting, W 2011, 'Light extraction from surface plasmons and waveguide modes in an organic light-emitting layer by nanoimprinted gratings', Optics Express, vol. 19, no. 101, pp. A7-A19. https://doi.org/10.1364/OE.19.0000A7
Frischeisen, Jörg ; Niu, Quan ; Abdellah, Alaa ; Kinzel, Jörg B. ; Gehlhaar, Robert ; Scarpa, Giuseppe ; Adachi, Chihaya ; Lugli, Paolo ; Brütting, Wolfgang. / Light extraction from surface plasmons and waveguide modes in an organic light-emitting layer by nanoimprinted gratings. In: Optics Express. 2011 ; Vol. 19, No. 101. pp. A7-A19.
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