Issue 23, 2014

Optically and electrically tunable graphene quantum dot–polyaniline composite films

Abstract

Graphene quantum dot–polyaniline (PANI–GQD) composite films were synthesized by a chemical oxidation polymerization process. The optical properties of the PANI–GQD composite were studied by varying the mole concentration of PANI and the size of the GQDs. The Au/PANI–GQDs/ITO sandwich device was fabricated in order to investigate the transport properties of the composite. A stable hysteresis loop was observed in response to the applied voltage. By varying the PANI content and size of the GQDs, the area within the hysteresis loop and electrical conductance behavior of the device can be tuned in a controlled manner. Both the tunable luminescence and electrical hysteresis behavior are attributed to surface states of the GQDs. The PANI–GQD composite films are expected to find application in photonic devices.

Graphical abstract: Optically and electrically tunable graphene quantum dot–polyaniline composite films

Supplementary files

Article information

Article type
Paper
Submitted
13 maalis 2014
Accepted
11 huhti 2014
First published
15 huhti 2014

J. Mater. Chem. C, 2014,2, 4526-4532

Author version available

Optically and electrically tunable graphene quantum dot–polyaniline composite films

C. M. Luk, B. L. Chen, K. S. Teng, L. B. Tang and S. P. Lau, J. Mater. Chem. C, 2014, 2, 4526 DOI: 10.1039/C4TC00498A

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.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements