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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 14 — Jul. 15, 2013
  • pp: 2394–2396

High light-extracting efficiency for OLED directly fabricated on double-side nanotextured silica substrate

Yu Luo, Li Wang, Yucheng Ding, Long Li, and Jinfeng Shi  »View Author Affiliations

Optics Letters, Vol. 38, Issue 14, pp. 2394-2396 (2013)

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One economical method for extracting the light loss from both the waveguide mode and substrate is demonstrated. Pillar arrays with different scales are created on the two sides of a silica substrate by inductively coupled plasma etching following a colloidal masking. The quasi-periodic Bragg scattering structure on a silica/ITO interface led to a two-fold current efficiency without introducing a spectral shift or directionality. Meanwhile, the subwavelength-scaled antireflection structure on a silica/air interface produced further increases in efficiency by 40%. The organic light-emitting device directly fabricated on the double-sided nanotextured silica substrate reached an overall enhancement factor of 2.8 with the current efficiency.

© 2013 Optical Society of America

OCIS Codes
(160.4890) Materials : Organic materials
(230.3670) Optical devices : Light-emitting diodes
(290.5880) Scattering : Scattering, rough surfaces
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Diffraction and Gratings

Original Manuscript: April 29, 2013
Manuscript Accepted: May 29, 2013
Published: July 5, 2013

Yu Luo, Li Wang, Yucheng Ding, Long Li, and Jinfeng Shi, "High light-extracting efficiency for OLED directly fabricated on double-side nanotextured silica substrate," Opt. Lett. 38, 2394-2396 (2013)

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