Research Article
Substrate Temperature Effect on Charge Transport Performance of ZnO Electron Transport Layer Prepared by a Facile Ultrasonic Spray Pyrolysis in Polymer Solar Cells
Figure 4
3D AFM morphology images of ZnO films on ITO glass and grown at different temperatures. (a) 125°C, (b) 150°C, (c) 200°C, and (d) 250°C.
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