Effect of Zn(NO 3 ) 2 concentration in hydrothermal–electrochemical deposition on morphology and photoelectrochemical properties of ZnO nanorods

One‐Step Low‐Temperature Synthesis of Syringe‐Shaped ZnO Nanorod Arrays, Growth Mechanism and Optical Properties

“…Low concentration tends to produce very thin rod. This phenomenon has been reported by R. Roth et al and T. Feng et al., and also been observed in our study. Lower precursor concentration can reduce both radial and axial growth rate.…”

“…Low‐temperature (always under 95 °C) aqueous solution method has more recently emerged, which provides a facile way to obtain preferred oriented ZNAs with a ZnO seed layer pre‐coated on various substrates. The structure of the ZNAs can be regulated by the growth conditions, such as solution concentrations, pH value of solution, the growth time and temperature . But till now, the exactly controllable growth of ZnO nanocrystal and the mechanisms behind the crystal growth in solution method are still subjects of controversy.…”

Characterization of electrodeposited undoped and doped thin ZnO passive films on zinc metal in alkaline HCO3−/CO32− buffer solution

“…This implies that conductivity of those passive lms mainly relies on oxygen vacancies and zinc cation interstitials which are preponderance over metal vacancies in the barrier layer and creating shallow donor levels just below the conduction band. 40,[48][49][50][51][52] The evolution of the main charge carrier density as a function of the lm anodizing voltage conrms well the impedance results. In fact, for a semiconductor/electrolyte interface its capacitance (C) is related to the space charge capacitance (C sc ) and the Helmholtz capacitance (C H ), where…”

d-Glucose sensor based on ZnO·V2O5 NRs by an enzyme-free electrochemical approach

“…1 A signicant amount of research has been devoted to the development of various ZnO nanostructures, such as belts, combs, bers, particles, ribbons, rods, sheets, spheres, tubes, and wires. 2 Meanwhile, various oxides of vanadium occur as VO, VO 2 , V 2 O 3 , and V 2 O 5 depending on the oxidation state of vanadium (V 2+ to V 5+ ). Vanadium pentoxide (V 2 O 5 ) can be considered as a promising cathode material.…”