The Light Extraction Efficiency Enhancement in Organic Light-Emitting Diodes with Substrate Modifications

Chong Wang; Jun Wang; Kai Yuan; Lei Yu

doi:10.4028/www.scientific.net/AMR.605-607.2031

Paper Titles

Design of Azimuth-Sign Wireless Autonomous Positioning System
p.2014

A Highly Directional Light Emitting Diode Light Guide Bar Based on Concave V-Grooves
p.2019

A Low-Distortion Single Fingerprint Acquisition Optical System
p.2023

The Anomalous Threshold Voltage Prediction by Grey Model GM(1,1) for Submicron MOSFETs
p.2027

The Light Extraction Efficiency Enhancement in Organic Light-Emitting Diodes with Substrate Modifications
p.2031

High Efficiency Performance of Stack-Gate 0.35um P-Channel Flash EPROMs
p.2035

Three Dimension Thermal and Mechanical Simulation of Microbolometer to Detect Terahertz Wave
p.2039

Simultaneous Synchronization and Anti-Synchronization of the Two Identical BVP Oscillators
p.2045

A Mobile Computing SoC Design
p.2049

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 605-607The Light Extraction Efficiency Enhancement in...

The Light Extraction Efficiency Enhancement in Organic Light-Emitting Diodes with Substrate Modifications

Abstract:

The internal quantum efficiency of organic light-emitting diodes (OLEDs) can reach values near to 100%. Due to the difference among the refractive indices of the substrate, anode, organic thin films, and the air, two wave-guiding phenomena arise in the anode/organic layers and substrate of the OLEDs. In this paper, the substrate modifications are developed to simulate the optical luminous field for OLEDs. Monte Carlo method was used to investigate enhancement of the external extraction efficiency, which is related to the total reflection inside the device by changing the structure of the substrate.

You might also be interested in these eBooks

Advanced Designs and Researches for Manufacturing

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 605-607)

Pages:

2031-2034

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.605-607.2031

Citation:

Cite this paper

Online since:

December 2012

Authors:

Chong Wang, Jun Wang, Kai Yuan, Lei Yu

Keywords:

Light Extraction, Micro-Lens, OLED, Substrate Modification

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] J. P. Yang, Q. Y. Bao, Light out-coupling enhancement of organic light-emitting devices with microlens array, Appl. Phys. Lett., 97, 223303 (2010)

DOI: 10.1063/1.3521413

Google Scholar

[2] A. Dodabalapur, L. J. Rothberg, R. H. Jordan, T. M. Miller, R. E. Slusher and Julia M. Phillips, Physics and applications of organic microcavity light emitting diodes, J. Appl. Phys. 80 (12) (1996)

DOI: 10.1063/1.363768

Google Scholar

[3] Jiun-Haw Lee, Yu-Hsuan Ho, Efficiency improvement and image quality of organic light-emitting display by attaching cylindrical microlens arrays, Opt. Exp. 16, 26 (2008)

DOI: 10.1364/oe.16.021184

Google Scholar

[4] Feng Li *, Xiao Li, Enhanced light extraction from organic light-emitting devices by using microcontact printed silica colloidal crystals, Org. Electronics 8 635 (2007)

DOI: 10.1016/j.orgel.2007.06.001

Google Scholar

[5] Z. B. Wang, M. G. Helander, J. Qiu, D. P. Puzzo, Unlocking the full potential of organic light-emitting diodes on flexible plastic, nature photonics 5 753 (2011)

DOI: 10.1038/nphoton.2011.259

Google Scholar

[6] Young Rag Do, Yoon-Chang Kim and Young-Woo Song, Enhanced light extraction efficiency from organic light emitting diodes by insertion of a two-dimensional photonic crystal structure J. Appl. Phys, 96, 12, 7629 (2004)

DOI: 10.1063/1.1815049

Google Scholar