Special Section on Organic Light-Emitting Materials and Devices

Integration of high brightness and low operating voltage green organic light-emitting diodes on complementary metal-oxide semiconductor backplane

[+] Author Affiliations
Vipul Gohri, Julien Boizot, Gunther Haas

MICROOLED, 7 Parvis Louis Neel, BP 50, 38040 Grenoble Cedex 9, France

Henri Doyeux

CEA-LETI, DOPT/LTCV, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France

J. Photon. Energy. 2(1), 021211 (Apr 26, 2012). doi:10.1117/1.JPE.2.021211
History: Received September 6, 2011; Revised March 30, 2012; Accepted April 3, 2012
Text Size: A A A

Abstract.  We report high brightness and low operating voltage efficient green organic light-emitting diodes (OLEDs) based on silicon complementary metal-oxide semiconductor (CMOS) backplane which can be used in applications such as microdisplays. The small molecule top-emitting OLEDs are based on a fluorescent green emitter accompanied by blocking, doped charge transport layers, and an anode fabricated with standard CMOS processes of a 200 mm integrated circuit (IC) fab. The devices are designed to maximize the efficiency under low operative bias so as to fit the limited voltage budget of the IC. This was done by making optical simulations of the device structure, optimizing the organic layer thicknesses and charge injection in the n and p transport layers. The devices reach a current efficacy of 21.6cd/A at a luminance of 20,000cd/m2. The devices exhibit a voltage swing as low as 2.95 V for a contrast ratio of 1000. The optimized devices have a high lifetime of 6000 and 8800 h at 5000cd/m2. Furthermore, aging inside the emission layer is investigated.

Figures in this Article
© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Vipul Gohri ; Julien Boizot ; Henri Doyeux and Gunther Haas
"Integration of high brightness and low operating voltage green organic light-emitting diodes on complementary metal-oxide semiconductor backplane", J. Photon. Energy. 2(1), 021211 (Apr 26, 2012). ; http://dx.doi.org/10.1117/1.JPE.2.021211


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.