Nanopowder and Thin Films of ZnO by Sol Gel Approach
| Authors | Ankita, Sanjay Kumar , Sudhir Saralch , Dinesh Pathak |
| Affiliations |
Department of Physics, Sri Sai University, Palampur, India |
| Е-mail | dineshpathak80@gmail.com |
| Issue | Volume 11, Year 2019, Number 4 |
| Dates | Received 22 November 2018; revised manuscript received 0 August 2019; published online 22 August 2019 |
| Citation | Ankita, Sanjay Kumar, Sudhir Saralch, Dinesh Pathak, J. Nano- Electron. Phys. 11 No 4, 04027 (2019) |
| DOI | https://doi.org/10.21272/jnep.11(4).04027 |
| PACS Number(s) | 68.55. − a, 68.37.Hk |
| Keywords | TCO (2) , Dip coating (4) , Structural properties (9) , Band gap (29) . |
| Annotation |
In this work we have studied the structural and optical properties of ZnO thin films. Pure thin films of ZnO were prepared on glass substrate by sol gel dip coating method and annealed at a temperature of 150 ºC. Similarly, 1 gm PVA capped ZnO thin film was prepared and annealed at 250 ºC and the last sample of 2 gm PVA capped ZnO thin film was prepared and annealed at a temperature of 350 ºC. The increase in sol aging time resulted in a gradual improvement in crystallinity of the hexagonal phase for all diffraction peaks. Effect of sol aging on optical transparency is quite obvious through increased transmission with prolonged sol aging time. Interestingly, 24 hour sol aging time was found to be optimal to achieve smooth surface morphology, good crystallinity and high optical transmittance which were attributed to an ideal stability of solution. The ZnO thin films have been characterized in terms of morphological, structural and optical properties by scanning electron microscopy (SEM) and ultraviolet–visible (UV–Vis) spectroscopy. The UV–Vis transmittance spectrum of synthesized sample gives the optical band gap value of 3.2 eV, 3.15 eV and 3.1 eV. Along with thin films, nanopowder is also synthesized by sol gel method and characterized by XRD, which can be potentially used in cosmetic industry. Sol-gel dip coating technique creates pure and capped ZnO films with potential for applications as transparent conducting electrodes in optoelectronic devices such as solar cell and light emitting diodes. |
|
List of References |
Other articles from this number
1) X-ray Spectral Investigation of SiO2/TiO2/C Nanocomposites [04001-1-04001-4]2) The Structural Studies of Phase Transitions in the Graphite Intercalation Compounds with Iodine Chloride and Bromine [04002-1-04002-6]
3) Influence of Substrate Temperature on the Formation of Titanium Carbide Film [04003-1-04003-5]
4) Theoretical Analysis of Thermal Conductivity of Polymer Systems Filled with Carbon Nanotubes [04004-1-04004-6]
5) Electrical Characteristics of Au/n-GaN Schottky Junction with a High-k SrTiO3 Insulating Layer [04005-1-04005-5]
6) Nanoporous Structure of the Ammonium Nitrate Granules at the Final Drying: The Effect of the Dryer Operation Mode [04006-1-04006-4]
7) Magnetoresistance of GaP0.4As0.6 Whiskers in Vicinity of MIT [04007-1-04007-5]
8) Simulation of Guard Ring Type Effects on the Electrical Characteristics of n-on-p Planar Silicon Detectors [04008-1-04008-6]
9) Watershed Segmentation Image Processing Analysis of Zn0.97Fe0.03O Dilute Magnetic Semiconductor [04009-1-04009-3]
10) Microstructural Features and Tribological Behaviour of Low-Alloyed Steel Modified by High-Energy Plasma Pulse [04010-1-04010-5]
11) Design and Analysis of Ternary D-Latch Using CNTFETs [04011-1-04011-5]
12) Surface Nanostructure of Layers from Water Solutions after Sedimentation [04012-1-04012-6]
13) Solutions of Two-dimensional Schrodinger Equation in Symmetries of Extended Quantum Mechanics for the Modified Pseudoharmonic Potential: an Application to Some Diatomic Molecules [04013-1-04013-7]
14) Investigation of Localized Charges on Linearity and Distortion Performance of Ferroelectric Dual Material Gate All Around TFETs [04014-1-04014-6]
15) Band Gap Engineering in Spray Pyrolysis Grown Nanocrystalline NiO Thin Films by Fe Doping [04015-1-04015-6]
16) Single-walled Boron Nitride Pores as Media for Hydrogen Storage: DFT and IGM Study [04016-1-04016-7]
17) Synthesis and Characterization of Hybrid Chitosan/magnetite Nanocomposite Fluid [04017-1-04017-5]
18) New Multi-stages – Hydrogen Diffusion Model for Negative Bias Temperature Instability [04018-1-04018-6]
19) Nanostructured Coatings Based on Amorphous Carbon and Gold Nanoparticles Obtained by the Pulsed Vacuum-arc Method [04019-1-04019-7]
20) X-ray Analysis of NiCrxFe2 – xO4 Nanoparticles Using Debye- Scherrer, Williamson-Hall and Size-strain Plot Methods [04020-1-04020-8]
21) BSIM3v3 Characterization and Simulation of MOS Si1 – xGex Transistors with 130 nm Submicron Technology [04021-1-04021-6]
22) An Analogue Multiplier Using Carbon Nanotube Field-effect Transistor Technology [04022-1-04022-5]
23) Computer Simulation of the Electrotransport Characteristics of the “Au – Bipyridine – Au” Nanocontact [04023-1-04023-5]
24) Nonrelativistic Bound State Solutions of the Modified 2D-Killingbeck Potential Involving 2D-Killingbeck Potential and Some Central Terms for Hydrogenic Atoms and Quarkonium System [04024-1-04024-8]
25) Effect of the Temperature Change of Material Test Reactor on Calibration of Cluster Dynamics for Neutron Irradiation Pure Iron [04025-1-04025-4]
26) Elastic Properties of Au, Ag, and Core-shell Au@Ag Nanorods from Molecular Dynamics Simulations [04026-1-04026-5]
27) The Effects of Al-doped ZnO (AZO) as Anti-reflection Agent for Dye Sensitized Solar Cells System [04028-1-04028-5]
28) Operating Temperature Effect on the Thin Film Solar Cell Efficiency [04029-1-04029-5]
29) Extraction of Diode’s Electrical Parameters under Forward and Room Temperature Conditions in an InAsSb Based Device [04030-1-04030-6]
30) Research of Photoluminescence Spectra of ZnSXSe1 – X:Mn Nanocrystals Obtained by Method of Self-propagating High-temperature Synthesis [04031-1-04031-5]
31) Nonlinearity of Diffusion Resistors at High-density Current [04032-1-0432-5]
32) Research of Heat Transfer Mechanisms in Glasses Using Modulation Polarimetry Technique [04033-1-04033-4]
33) Ab Initio Modeling of Boron Impurities Influence on the Electronic and Atomic Structure of Titanium Carbide [04034-1-04034-4]
34) Ferromagnetism of Iron-copper Nanocomposites [04035-1-04035-5]
35) Quantum Confinement Features in EPR and UV-vis Spectra of Al/Au Nanosystems [04036-1-04036-4]
36) Searching for Order Parameter of Low-temperature Phase Transitions in Divalent Nitrates [04037-1-04037-3]
