Highly conductive and uniform graphene oxide modified PEDOT:PSS electrodes for ITO-Free organic light emitting diodes

Xinkai Wu; Jun Liu; Dongqing Wu; Yanru Zhao; Xindong Shi; Jing Wang; Saijun Huang; Gufeng He

doi:10.1039/C4TC00305E

Highly conductive and uniform graphene oxide modified PEDOT:PSS electrodes for ITO-Free organic light emitting diodes

Xinkai Wu,^a Jun Liu,^a Dongqing Wu,^b Yanru Zhao,^b Xindong Shi,^a Jing Wang,^a Saijun Huang^a and Gufeng He*^a

* Corresponding authors

^a National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
E-mail: gufenghe@sjtu.edu.cn

^b School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, People's Republic of China

Abstract

We have successfully obtained a highly transparent and conductive film by doping poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) with graphene oxide (GO) and sodium dodecyl benzene sulfonate (SDBS). The PEDOT:PSS hybrid film mixed with 0.02% GO:SDBS by weight exhibits a sheet resistance of 85 ohm per square and a transmittance of 87% at 550 nm. The improvement of conductivity is mainly attributed to the weakening of coulombic attraction between PEDOT and PSS by the functional groups on GO nanosheets, and forming an extended conductive network by connecting PEDOT chains with GO nanosheets. Using the optimized PEDOT:PSS hybrid film as an anode, indium tin oxide (ITO)-free organic light emitting diodes (OLEDs) have been demonstrated on glass and polyethylene naphthalate (PEN) substrates, showing better performance than that with ITO as the anode. This proves that such PEDOT:PSS and GO:SDBS hybrid films are promising alternatives to ITO for low cost flexible OLEDs.

Article information

https://doi.org/10.1039/C4TC00305E

Article type

Paper

Submitted

14 Feb 2014

Accepted

06 Mar 2014

First published

07 Mar 2014

Download Citation

J. Mater. Chem. C, 2014,2, 4044-4050

Permissions

Request permissions

Highly conductive and uniform graphene oxide modified PEDOT:PSS electrodes for ITO-Free organic light emitting diodes

X. Wu, J. Liu, D. Wu, Y. Zhao, X. Shi, J. Wang, S. Huang and G. He, J. Mater. Chem. C, 2014, 2, 4044 DOI: 10.1039/C4TC00305E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Journal of Materials Chemistry C

Highly conductive and uniform graphene oxide modified PEDOT:PSS electrodes for ITO-Free organic light emitting diodes

Abstract

Article information

Download Citation

Author version available

Permissions

Highly conductive and uniform graphene oxide modified PEDOT:PSS electrodes for ITO-Free organic light emitting diodes

Social activity

Search articles by author

Spotlight

Advertisements