We report the first successful attempt at complete device fabrication under ambient conditions usinginkjet printing and nanoscale electrocrystallization. Three different electrode patterns―parallel-type,multiparallel, and multitip patterns―are prepared using inkjet patterning. The printed electrodes, whichhave gaps of 〜20 m, are produced using a material printer. Indium tin oxide and gold inks are usedfor printing, and the electrodes are printed on silicon and glass substrates. Next, using these printedelectrodes, micro- or nanocrystals are synthesized through nanoscale electrocrystallization. Owing tothe surface roughness of the electrodes, the manner of crystal growth is slightly different from that in thecase of lithographically formed electrodes; however, the morphology of the grown crystals is similar. Inaddition, the nanocrystals-based bridge structure formed between the two electrodes by AC electrolysisis similar to that obtained using lithographically formed electrodes. Further, the two-terminal deviceshows ohmic characteristics, indicating that there is good contact between the electrode and obtainedcrystal.

10.1016/j.apmt.2017.09.011