Effect of ZnO surface morphology on its electrochemical performance

Abstract

The purpose of this paper is to bridge the gap between ZnO surface morphology and its electrochemical performance.

Stacked vanadium pentoxide–zinc oxide interface for optically-chargeable supercapacitors

“…We also compared the capacitance of our electrode material with other works which use similar materials and electrolytes. Our V 2 O 5 /ZnO/FTO electrode shows a maximum areal capacitance of 3.3 mF cm −2 at 20.83 μA cm −2 , which is more than ZnO/ITO (0.65 mF cm −2 at 100 mV s −1 ), 32 ZnO/FTO (21 μF cm −2 at 50 mV s −1 ), 55 ZnO/MnO 2 /FTO (2.5 mF cm −2 at 0.1 mA cm −2 ), 56 SWCNT/ZnO (1.53 mF cm −2 at 1.25 μA cm −2 ), 3 and BR/P3HT/ITO (2.44 mF cm −2 at 20 μA cm −2 ). 57 We did not prefer carbon-based materials to improve the performance of the device to avoid the issues related to complex synthesis methods, loss of optical response, agglomeration of the material, and toxicity.…”

Self-Cleaning Bending Sensors Based on Semitransparent ZnO Nanostructured Films

“…In addition, the impedance values of the seeded ZnO samples are lower than seedless ZnO and significantly lower than ITO, which can be ascribed to the higher surface exposure of n- ZnO with respect to the ITO electrodes. Nevertheless, the value of the ZnO impedance is correlated to the morphology of n- ZnO, with NSs being, in particular, able to reduce the impedance with respect to NWs . As a result, n- ZnO permits a significant reduction of the interfacial layer resistance, decreasing, in turn, the surface charge processes, which are essential in photocatalysis.…”

An efficient Cu2Zn1−xInxSn(S,Se)4 multicomponent photocathode via one-step hydrothermal approach for thin film solar cell

“…The gradual decrease in the charge transfer resistance of samples I 1 to I 4 (4.97 kΩ–35.1 Ω) is assigned to the improved film compactness and uniformity, along with the structural morphology from the nanocubes to nanoflowers. 70–72 At the onset potentials, the impedance spectra of I 1 and I 2 show large charge transfer resistance. This might be due to the lower surface compactness due to the nanocubic morphology.…”