Nanostructured ZnO films in forms of rod, plate and flower: Electrodeposition mechanisms and characterization
Source abstract
Abstract
Abstract Uniformity and reproducibility of well-defined ZnO nanostructures are particularly important issues for fabrication and applications of these nanomaterials. In present study, we report selective morphology control during electrodeposition, by adjusting the hydroxyl generation rate and Zn(OH)2 deposition. In presence of remarkably high chloride concentration (0.3 M) and −1.0 V deposition potential, slow precipitation conditions were provided in 5 mM Zn(NO3)2 solution. By doing so, we have obtained highly ordered, vertically aligned and uniformly spaced hexagon shaped nanoplates, on ITO surface. We have also investigated the mechanism for shifting the morphology from rod/plate to flower like structure of ZnO, for better understanding the reproducibility. For this reason, the influence of various supporting electrolytes (sodium/ammonium salts of acetate) has been investigated for interpretation of the influence of OH− concentration nearby the surface. From rod to plate and flower nanostructures, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analysis were realized for characterization, also the optical properties were studied.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Copper-based nanomaterials and applications · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Physical and electronic properties of electrodeposited ZnO thin films: dependence on thickness10.1007/s12648-015-0675-y ↗
2. Controlled fabrication of ordered structure-based ZnO films by electrochemical deposition10.1016/j.tsf.2014.11.009 ↗
3. Controlled morphology evolution of ZnO nanostructures in the electrochemical deposition: from the point of view of chloride ions10.1016/j.electacta.2013.08.050 ↗
4. Controllable synthesis of well-aligned ZnO nanorod arrays on varying substrates via rapid electrodeposition10.1016/j.jmst.2014.04.006 ↗
5. Controllable electrochemical synthesis of ZnO nanorod arrays on flexible ITO/PET substrate and their structural and optical properties10.1016/j.apsusc.2012.06.109 ↗
6. Morphological control of ZnO nanostructures by electrodeposition10.1021/jp051007b ↗
7. Growth of vertically aligned ZnO nanowalls for inverted polymer solar cells10.1016/j.solmat.2013.05.019 ↗
8. The study of self-assembled ZnO nanorods grown on Si(111) by plasma-assisted molecular beam epitaxy10.1016/j.jcrysgro.2012.12.137 ↗
9. Enhanced electrical and optical properties of boron-doped ZnO films grown by low pressure chemical vapor deposition for amorphous silicon solar cells10.1016/j.ceramint.2015.09.075 ↗
10. High-quality ZnO thin Film grown on sapphire by hydrothermal method10.1016/j.matlet.2015.09.048 ↗
11. Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing10.1016/j.ceramint.2014.12.062 ↗
12. Crystalline nanostructured Cu doped ZnO thin films grown at room temperature by pulsed laser deposition technique and their characterization10.1016/j.apsusc.2012.12.126 ↗
13. Effect of diameter and height of electrochemically-deposited ZnO nanorod arrays on the performance of piezoelectric nanogenerators10.1016/j.matchemphys.2014.10.034 ↗
14. Electrodeposition of ZnO nanorod arrays on transparent conducting substrates-a review10.1016/j.electacta.2014.02.049 ↗
15. Electrodeposition of Zn(OH)2, ZnO thin films and nanosheet-like Zn seed layers and influence of their morphology on the growth of ZnO nanorods10.1016/j.electacta.2013.03.051 ↗
16. Optimization of parameters for the growth of defect free ZnO nanorod arrays with intense UV emission capacity by electrochemcial route10.1016/j.electacta.2012.12.051 ↗
17. Nucleation effect and growth mechanism of ZnO nanostructures by electrodeposition from aqueous zinc nitrate baths10.1016/j.jcrysgro.2012.08.016 ↗
18. Electrodeposition from ZnO nano-rods to nano-sheets with only zinc nitrate electrolyte and its photoluminescence10.1016/j.apsusc.2011.05.132 ↗
19. Characterization of size-controlled ZnO nanorods produced by electrochemical deposition technique10.1016/j.sse.2012.05.051 ↗
20. Effect of the electrochemical technique on nanocrystalline ZnO electrodeposition its structural, morphological and photoelectrochemical properties10.1016/j.tsf.2013.04.024 ↗
21. Controlled synthesis of oriented ZnO nanorod arrays by seed-layer-free electrochemical deposition10.1016/j.apsusc.2011.09.113 ↗
22. Seed layer-free electrodeposition and characterization of vertically aligned ZnO nanorod array film10.1007/s10008-009-0785-6 ↗
23. New insight into growth mechanism of ZnO nanowires electrodeposited from nitrate-based solutions10.1016/j.electacta.2012.02.096 ↗
24. Controlled growth of two-dimensional and one-dimensional ZnO nanostructures on indium tin oxide coated glass by direct electrodeposition10.1021/la8008943 ↗
25. Vertical growth of two-dimensional zinc oxide nanostructures on IT O-coated glass: effects of deposition temperature and deposition time10.1021/jp076890n ↗
26. Mechanistic study of cathodic electrodeposition of zinc oxide and zinc hydroxychloride films from oxygenated aqueous zinc chloride solutions10.1149/1.1838359 ↗
27. Electrochemical growth of nanopillar zinc oxide films by applying a low concentration of zinc nitrate precursor10.1149/1.2163691 ↗
28. Controllable morphology evolution of electrodeposited ZnO nano/micro-scale structures in aqueous solution10.1016/j.matdes.2008.07.024 ↗
29. Controlling morphologies and growth mechanism of hexagonal prisms with planar and pyramid tips of ZnO microflowers by microwave radiation10.1016/j.ceramint.2014.01.120 ↗
30. Mechanism and growth of flexible ZnO nanostructure arrays in a facile controlled way
31. International Centre of Diffraction Data, 1996, Powder Diffraction File, JCPDS File No: 00-036-1451.
32. Cullity · 1978
33. Warren · 1969
34. Total valence-band densities of states of III-V and II-VI compounds from x-ray photoemission spectroscopy10.1103/PhysRevB.9.600 ↗
35. Initial oxidation and interfacial diffusion of Zn on faceted MgO (111) films10.1021/la801314s ↗
36. Electronic structure of ZnO (0001) studied by angle-resolved photoelectron spectroscopy10.1016/S0039-6028(96)01181-8 ↗
37. XPS and UPS study on band alignment at pt–Zn-terminated ZnO (0001) interface10.1016/j.apsusc.2011.08.095 ↗
38. Undoped ZnO abundant with metal vacancies10.1016/j.nanoen.2014.06.029 ↗
39. Thompson · 2001
40. Synthesis of nanowires, nanorods and nanoparticles of ZnO through modulating the ratio of water to methanol by using a mild and simple solution method10.1016/j.matchemphys.2004.09.006 ↗
41. Micro-Raman and XPS studies of pure ZnO ceramics10.1016/j.physb.2010.03.020 ↗