| 초록 |
In the present work, precise control of the NPC arrangement in confined geometries has been demonstrated by using removable and NP-guidable liquid crystalline template, namely toric focal conic domains (TFCDs), via sublimation and reconstruction phenomenon.[1] The sequential changes with varying the experimental conditions were directly observed by scanning electron microscopy (SEM) and polarized optical microscopy (POM). Then, as a proof of concept, gold nanorod (GNR) cluster arrays were successfully fabricated, where each GNR cluster showed a clear SERS signal from the Raman chemical Malachite green (MG), which was sufficiently enhanced to be detected at very small concentration of 1.0 10-8 M of MG. [1] D. S. Kim, A. Honglawan, K. Kim, M. H. Kim, S. Jeong, S. Yang, D. K. Yoon, J. Mater. Chem. C, 3, 4598 (2015). |
