Thermal instability of gold nanorods in micellar solution of water/glycerol mixtures

Shape Change and Color Gamut in Gold Nanorods, Dumbbells, and Dog Bones

“…However, we have shown that, while such an effect can explain the appearance of an additional peak at about 560 nm, it would produce a red-shifting of the longitudinal resonance. Finally, there has been a claim in the literature [45] that, as time goes by the longer and larger rods precipitate out, hence decreasing the average aspect ratio (and optical density) of the suspension. This would obviously be accompanied by a blue-shift in the spectra.…”

Plasmonic Optical Properties and Applications of Metal Nanostructures

“…A large variety of new synthesis methods have also been developed to fabricate elongated nanoparticles, such as disks [43], ellipsoids [44], and rectangular and decahedral nanorods [9,[45][46][47][48][49][50][51][52][53][54]55], regular octahedra [56], rings and crescents. [57] Efforts have also been made to modify the initial shape of a particle into another one.…”

Optical and Magnetic Studies of Fe3O4/Au Core/Shell Nanocomposites

“…The ferric oxide particles however, have no speci¯c absorption peak in this region. The gold nanoparticles have a characteristic resonance at 520 nm, 22 and as the particles merge to form a shell the resonance shifts to longer wavelengths. Figure 3(a) Fig.…”

“…Size-dependent magnetic properties for individual nanoparticles as well as the coupling between such nanoparticles have been the main focus of many researchers investigating physical properties of nanostructures. [20][21][22][23] For Fe 3 O 4 nanoparticles, surface modi¯cation usually leads to the formation of a nonmagnetic shell due to the formation of outer particle layer whose thickness could be in the order of 1-20 nm. 22 In the present work, magnetization measurements of nanoparticles were performed Fig.…”