2D-patterning of self-assembled silver nanoisland films

摘要: The paper is dedicated to the recently developed by authors technique of silver nanoisland growth, allowing self-arrangement 2D-patterns nanoislands. employs out-diffusion from ion-exchanged glass in course annealing hydrogen. To modify ion distribution exchanged soda-lime we included thermal poling with a profiled electrode as an intermediate stage process. resulting consequence consists three steps: (i) during exchange AgxNa1−xNO3 (x = 0.01–0.15) melt enrich subsurface layer ions; (ii) under poling, electric field displaces these ions deeper into 2D anodic electrode, displacement smaller hollows where intensity minimal; (iii) reducing atmosphere hydrogen results only regions corresponding hollows, result forms nanoislands following shape electrode. Varying and mode processing allows governing size isolated single nanoislands, pairs, triples or groups several nanoislands—so-called plasmonic molecules.