Surface-modified nanotube anodes for high performance organic light-emitting diode

Eric C-W Ou; Liangbing Hu; Gan Ching Ruey Raymond; Ong Kian Soo; Jisheng Pan; Zhang Zheng; Youngbae Park; David Hecht; Glen Irvin; Paul Drzaic; George Gruner

doi:10.1021/nn900406n

Surface-modified nanotube anodes for high performance organic light-emitting diode

ACS Nano. 2009 Aug 25;3(8):2258-64. doi: 10.1021/nn900406n.

Authors

Eric C-W Ou¹, Liangbing Hu, Gan Ching Ruey Raymond, Ong Kian Soo, Jisheng Pan, Zhang Zheng, Youngbae Park, David Hecht, Glen Irvin, Paul Drzaic, George Gruner

Affiliation

¹ Institute of Materials Research and Engineering, 3 Research Link, 117602, Singapore. [email protected]

PMID: 19588907
DOI: 10.1021/nn900406n

Abstract

In this work, we reported high performance OLED devices with transparent and conductive carbon nanotube anodes after modification. The modifications include IMRE proprietary PEDOT:PSS composite top coating (PS(C)), concentrated HNO(3) acid soaking, and polymer encapsulation. For PS(C)-modified nanotube thin film anode, we achieved maximum luminescence of approximately 9000 cd/m(2), close to ITO-based OLED device performance, and high efficiency of approximately 10 cd/A, similar with ITO-based OLED device. The performance is approximately 30 to 450 times better than that achieved for OLED devices using CNT anodes by others. In addition, we also investigate the mechanical property, work function, sheet resistance, and surface morphology of modified carbon nanotube thin-film anodes.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biomedical and Dental Materials
Electrodes
Light
Microscopy, Atomic Force
Nanotubes, Carbon / chemistry*
Nanotubes, Carbon / ultrastructure

Substances

Biomedical and Dental Materials
Nanotubes, Carbon