We thank Dr. Y. F. Shieh of Ma-tek, Taiwan, for the TEM studies and Hsuan-Hao Chang for image processing. This work was supported by the National Science Council (Grant No. NSC 94-2120-M-001-002) and Academia Sinica, Taiwan.
Highly Raman-Enhancing Substrates Based on Silver Nanoparticle Arrays with Tunable Sub-10 nm Gaps†
Article first published online: 10 FEB 2006
Copyright © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 18, Issue 4, pages 491–495, February, 2006
How to Cite
Wang, H.-H., Liu, C.-Y., Wu, S.-B., Liu, N.-W., Peng, C.-Y., Chan, T.-H., Hsu, C.-F., Wang, J.-K. and Wang, Y.-L. (2006), Highly Raman-Enhancing Substrates Based on Silver Nanoparticle Arrays with Tunable Sub-10 nm Gaps. Adv. Mater., 18: 491–495. doi: 10.1002/adma.200501875
- Issue published online: 10 FEB 2006
- Article first published online: 10 FEB 2006
- Manuscript Accepted: 26 OCT 2005
- Manuscript Received: 6 SEP 2005
- Nanoparticles, metal;
Uniform and highly surface-enhanced Raman spectroscopic (SERS)-active substrates have been fabricated using Ag nanoparticle arrays with unprecedented small tunable gaps. The dependence of the enhancing capability of the substrate on the gap size provides quantitative evidence for the collective SERS effect and confirms predictions of interparticle-coupling-induced Raman enhancement.