Molecular Logic Gates Using Surface-Enhanced Raman-Scattered Light

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• 作者：Edward H. Witlicki ; Carsten Johnsen ; Stinne W. Hansen ; Daniel W. Silverstein ; Vincent J. Bottomley ; Jan O. Jeppesen ; Eric W. Wong ; Lasse Jensen ; Amar H. Flood
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：May 18, 2011
• 年：2011
• 卷：133
• 期：19
• 页码：7288-7291
• 全文大小：802K
• 年卷期：v.133,no.19(May 18, 2011)
• ISSN：1520-5126

文摘

A voltage-activated molecular-plasmonics device was created to demonstrate molecular logic based on resonant surface-enhanced Raman scattering (SERS). SERS output was achieved by a combination of chromophore鈥損lasmon coupling and surface adsorption at the interface between a solution and a gold nanodisc array. The chromophore was created by the self-assembly of a supramolecular complex with a redox-active guest molecule. The guest was reversibly oxidized at the gold surface to the +1 and +2 oxidation states, revealing spectra that were reproduced by calculations. State-specific SERS features enabled the demonstration of a multigate logic device with electronic input and optical output.