Inkjet printing and nanoscale electrocrystallization: Complete fabrication of organic microcrystals-based devices under ambient conditions AITranslate

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DOI：https://doi.org/10.1016/j.apmt.2017.09.011

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We report the first successful attempt at complete device fabrication under ambient conditions using inkjet printing and nanoscale electrocrystallization. Three different electrode patterns—parallel-type, multiparallel, and multitip patterns—are prepared using inkjet patterning. The printed electrodes, which have gaps of ∼20 μm, are produced using a material printer. Indium tin oxide and gold inks are used for printing, and the electrodes are printed on silicon and glass substrates. Next, using these printed electrodes, micro- or nanocrystals are synthesized through nanoscale electrocrystallization. Owing to the surface roughness of the electrodes, the manner of crystal growth is slightly different from that in the case of lithographically formed electrodes; however, the morphology of the grown crystals is similar. In addition, the nanocrystals-based bridge structure formed between the two electrodes by AC electrolysis is similar to that obtained using lithographically formed electrodes. Further, the two-terminal device shows ohmic characteristics, indicating that there is good contact between the electrode and obtained crystal. Graphical abstract Download : Download high-res image (133KB) Download : Download full-size image