Solvent-induced morphology changes in thin silver films

Elevated Ag nanohole arrays for high performance plasmonic sensors based on extraordinary optical transmission

“…23 For example, Roark and Rowlen reported the blue shift of the absorption peak of Ag islands upon different solvent evaporation. 24 Rubinstein et al reported a decrease in the extinction intensity of gold island films after washing in ethanol and drying. 25 On the one hand, this phenomenon results from the morphology change induced by surface tension and, on the other hand, particles are easily detached due to their poor adhesive property to the substrate.…”

Mechanism of morphology transformation during annealing of nanostructured gold films on glass

“…[2][3][4][5][6][7][8][9] A common problem in the preparation of reliable LSPR transducers is poor adhesion between nanostructured Au films and oxide substrates such as glass, resulting in detachment of the nanostructures from the substrate and/or their aggregation during sample drying. 7,[10][11][12][13][14][15][16][17][18][19][20][21][22] The stability of Au films on oxide surfaces can be improved substantially by using metallic (Cr, Ni, Ti) 23 or organic (amino-or mercapto-silane; dendrimers; coupling layers and adsorbents) [23][24][25][26][27][28] adhesive interlayers.…”

Highly Stable Localized Plasmon Transducers Obtained by Thermal Embedding of Gold Island Films on Glass

“…[6] A major obstacle to sensing applications of metalisland-based LSPR transducers is the instability of such systems toward changes in the environmental conditions. This poor stability has been known for Ag island films [7][8][9][10][11][12][13] as well as for Au island films [6,[14][15][16] immersed in various solvents. Hicks et al [13] noted, concerning Ag island films on glass, that ''exposure to aqueous solutions (as is any biological milieu) significantly hinders their adhesion of metal to glass.''…”