Financial support from NSF-0506082 is acknowledged. S. Kundu acknowledges Dr. Zhiping Luo at the Microscopy Imaging Center (MIC), Texas A & M University for help with HR-TEM and EDX.
Photochemical Synthesis of Electrically Conductive CdS Nanowires on DNA Scaffolds†
Article first published online: 29 JAN 2008
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 20, Issue 4, pages 826–831, February, 2008
How to Cite
Kundu, S. and Liang, H. (2008), Photochemical Synthesis of Electrically Conductive CdS Nanowires on DNA Scaffolds. Adv. Mater., 20: 826–831. doi: 10.1002/adma.200702162
- Issue published online: 15 FEB 2008
- Article first published online: 29 JAN 2008
- Manuscript Revised: 22 OCT 2007
- Manuscript Received: 27 AUG 2007
- NSF. Grant Number: 0506082
- Cadmium selenide;
- Nanowires, semiconductor;
- Photochemical synthesis;
Electrically conductive CdS nanowires are fabricated via a photochemical synthesis route using DNA as a scaffold. The nanowires are found to be several micrometers long and are either 40 – 50 nm in diameter or 70 – 80 in diameter when synthesized using solution-suspended or immobilized DNA, respectively. Various characterization methods showed that the wires consist of one continuous phase and exhibit Ohmic behavior similar to electrodes. The one-step process described herein does not perturb the conformation of the DNA chain and may be extended to the synthesis of other semiconducting composite nanoparticles.