Skip to main content
. 2009 Sep 8;3(3):034104. doi: 10.1063/1.3224669

Figure 1.

Figure 1

Schematic diagram of micropatterning electrodes. Freshly prepared Ag(NH3)2+ solution is dropped uniformly over a glass substrate until the surface is entirely covered. Glucose solution is dropped uniformly over the substrate, and the substrate is gently agitated to allow even mixing of the solutions. Deposition is complete within 3 min. After agitation for 5 min, the deposition solution is rinsed off with water. Deposition is repeated once again to achieve an even coating. The substrate is dehydrated on a hotplate, and standard photolithography methods are used to pattern positive photoresist over the silver coating. The unprotected silver is etched away by sonicating in a diluted 1:1 (v/v) NH4OH:30% H2O2. Finally, the remaining photoresist is dissolved away with acetone to reveal the patterned silver.