Please use this identifier to cite or link to this item: https://doi.org/10.1038/nmat1806
Title: Controlled insulator-to-metal transformation in printable polymer composites with nanometal clusters
Authors: Sivaramakrishnan, S. 
Chia, P.-J. 
Yeo, Y.-C. 
Chua, L.-L. 
Ho, P.K.-H. 
Issue Date: Feb-2007
Source: Sivaramakrishnan, S., Chia, P.-J., Yeo, Y.-C., Chua, L.-L., Ho, P.K.-H. (2007-02). Controlled insulator-to-metal transformation in printable polymer composites with nanometal clusters. Nature Materials 6 (2) : 149-155. ScholarBank@NUS Repository. https://doi.org/10.1038/nmat1806
Abstract: Although organic semiconductors have received the most attention, the development of compatible passive elements, such as interconnects and electrodes, is also central to plastic electronics. For this, ligand-protected metal-cluster films have been shown to anneal at low temperatures below 250C to highly conductive metal films, but they suffer from cracking and inadequate substrate adhesion. Here, we report printable metal-cluster-polymer nanocomposites that anneal to a controlled-percolation nanostructure without complete sintering of the metal clusters. This overcomes the previous challenges while still retaining the desired low transformation temperatures. Highly water- and alcohol-soluble gold clusters (75mgml1) were synthesized and homogeneously dispersed into poly(3,4-ethylenedioxythiophene) to give a material with annealed d.c. conductivity tuneable between 104 and 105Scm1. These composites can inject holes efficiently into all-printed polymer organic transistors. The insulator-metal transformation can also be electrically induced at 1MVcm1, suggesting possible memory applications. © 2007 Nature Publishing Group.
Source Title: Nature Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/55421
ISSN: 14761122
DOI: 10.1038/nmat1806
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

116
checked on Dec 13, 2017

WEB OF SCIENCETM
Citations

114
checked on Nov 16, 2017

Page view(s)

48
checked on Dec 16, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.