Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Early Posting Feature Issues

Further enhancement of light extraction efficiency from light emitting diode using triangular surface grating and thin interface layer

R. Ghosh, A. Haldar, K. K. Ghosh, and R. Chakraborty

Not Accessible

Your library or personal account may give you access

Abstract

Analysis has been done of improvement of forward directional light extraction efficiency of light emitting diodes (LEDs) by surface patterning of different types of one-dimensional profiles on indium-zinc-oxide films developed recently by our group using sol–gel technique. Finite-difference time-domain simulations by MEEP software have been used for this purpose. From the analysis, it is found that the patterned film is suitable for near-infrared LED. The optimized structure, which gives maximum improvement at around 1.040 μm wavelength, is determined and fabricated using soft lithography. Further enhancement of the light output of the LED with the fabricated gratings is possible by introducing an interlayer within the top contact layer. The mathematical formulation of the coupling of light in structured/multilayered surfaces is also discussed.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Improvement of light extraction efficiency of GaN-based light-emitting diodes using Ag nanostructure and indium tin oxide grating

Suihu Dang, Chunxia Li, Wei Jia, Zhuxia Zhang, Tianbao Li, Peide Han, and Bingshe Xu
Opt. Express 20(21) 23290-23299 (2012)

Conformally direct imprinted inorganic surface corrugation for light extraction enhancement of light emitting diodes

Sarah Kim, Sang-Mook Kim, Hyeong-Ho Park, Dae-Geun Choi, Jae-Woo Jung, Jun Ho Jeong, and Jong-Ryul Jeong
Opt. Express 20(S5) A713-A721 (2012)

Improvement of the light extraction efficiency of top-emitting organic light-emitting diodes by a two-dimensional diffraction layer fabricated using self-assembled nanoparticles

Tsutomu Nakanishi, Toshiro Hiraoka, Akira Fujimoto, Shigeru Matake, Satoshi Okutani, Hiroshi Sano, and Koji Asakawa
Appl. Opt. 48(31) 5889-5896 (2009)

View More...

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 (10)

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

Equations (8)

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
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use