The feature size and resolution of inkjet printing is limited by nozzle size, jetting volume and ink spreading. This study proposes a unique inkjet printing method for controlling feature sizes such as line width and thickness for the fabrication of mciro metal electrodes. To form the micro metal electrodes, we printed silver (Ag) ink inside a hydrophilic track formed by a printed non-wettable patterns. The minimum line width of the printed Ag could be reduced up to 18 μm by using the jetted ink droplet of 35 ± 4.2 μm diameter, which is twice the line width. To increase the thickness of the microelectrode, Ag ink was repeatedly printed layer-by-layer, and the thickness could be increased to 1 μm for an 18 μm width. After optimizing the printing conditions for a straight line, the fabrication of a micro-grid electrode was demonstrated, by first printing a horizontal electrode pattern, then a vertical electrode pattern was printed by repeating the proposed printing method. Also, we investigated the sheet resistance of the Ag grid-printed ITO-coated glass substrate by changing the grid space distance.

喷墨打印的特征尺寸和分辨率受喷嘴尺寸，喷射量和墨水散布的限制。这项研究提出了一种独特的喷墨印刷方法，用于控制特征尺寸，例如制造mciro金属电极的线宽和线宽。为了形成微金属电极，我们将银（Ag）油墨印刷在由印刷的不可润湿图案形成的亲水轨道内。通过使用直径为35±4.2μm的喷射墨滴，可以将打印的Ag的最小线宽减小到18μm，这是线宽的两倍。为了增加微电极的厚度，将Ag墨水逐层重复打印，对于18μm的宽度，可以将其厚度增加到1μm。优化了直线的印刷条件后，演示了微栅电极的制造，通过首先印刷水平电极图案，然后通过重复提出的印刷方法来印刷垂直电极图案。另外，我们通过改变栅距来研究了银栅印刷的ITO涂层玻璃基板的薄层电阻。