Abstract
In this review, we present our recent progress on two dimensional (2D) crystalline sheet composed of uniformly sized silver nanoparticles. In this 2D crystalline sheet, the localized surface plasmon (LSPR) band was tuned accurately by the interparticle distance via the length of capping organic molecules. A homogeneous coupling of LSPR in 2D sheet realized not only a signifi cant red-shift but also a sharpened LSPR band. In addition, recently we found that the multilayered 2D sheet exhibited a unique plasmonic color on metal substrates depending on the number of layers (1-5 layers). This fl exible, transferable nanosheet promises new application in the field of bio-imaging. Other examples of self-assembled nanomaterials (e.g., Ag nanowires and quantum dots) reported by other groups are also introduced in this review paper.
