One-step direct fabrication of phase-pure Cu2O films via the spin-spray technique using a mixed alkaline solution

Novel Bending Sensor Based on a Solution-Processed Cu2O Film with High Resolution Covering a Wide Curvature Range

“…The previous study provides more details on the fabrication mechanism of a Cu 2 O film via the spin−spray method. 26 2.2. Bending Sensor Performance of a Cu 2 O Film.…”

“…Our previous study suggested that Cu + ions in the source solution reacted with OH – ions in the reaction solution to form Cu 2 O on the substrate, as shown in eq It is important for the fabrication of metal oxide films by the spin–spray method to increase the hydrophilicity of the substrate surface by the plasma treatment before the film fabrication.…”

“…The previous study provides more details on the fabrication mechanism of a Cu 2 O film via the spin–spray method …”

“…components in the reaction solution played an important role in the fabrication of the Cu 2 O film. 26 NaOH provided OH − ions to the reaction field on the rotating table and promoted the chemical reaction of eq 2. The spin−spray method achieved a high deposition rate of >0.35 μm/min using a reaction solution containing a high concentration of NaOH (0.4 M).…”

“…We previously fabricated phase-pure Cu 2 O films on glass substrates at 70 °C with a high deposition rate of ∼0.3 μm/min using this method. 26 The detailed fabrication mechanism of the spin−spray method is discussed in our previous report. In addition, our groups have reported the fabrication of metal oxides such as Fe 3 O 4 , ZnO, and SnO 2 on substrates at temperatures below 100 °C using this method.…”