Synthesis of Vertical ZnO Nanorods on Glass Substrates by Simple Chemical Method

2009 ◽  
Vol 5 ◽  
pp. 223-230 ◽  
Author(s):  
P. Suresh Kumar ◽  
M. Yogeshwari ◽  
A. Dhayal Raj ◽  
D. Mangalaraj ◽  
D. Nataraj ◽  
...  
Keyword(s):  
Deposition Time ◽  
Zno Nanorods ◽  
Sem Analysis ◽  
Growth Behavior ◽  
X Ray Diffraction ◽  
Zno Film ◽  
X Ray ◽  
Glass Substrates ◽  
Simple Chemical ◽  
Cbd Method

ZnO nanorods (NRs) have been synthesized by a chemical bath deposition (CBD) method on simple glass substrate that had been precoated by successive ionic layer absorption and reaction (SILAR) with a thin ZnO film. ZnO NR array was obtained by using zinc acetate and hexamethylenetetramine as aqueous solutions at optimized pH concentration and deposition time. X-ray diffraction (XRD) and SEM analysis were used to confirm the growth of ZnO nanorods. The pH and deposition time of the solution was found to influence the growth behavior of ZnO NRs. PL analysis also reflected the growth behavior of ZnO NRs.

Properties of Nano-ZnO Films Deposited by RF Magnetron Sputtering for SAW Biosensors

2011 ◽  
Vol 418-420 ◽  
pp. 293-296
Author(s):  
Qiu Yun Fu ◽  
Peng Cheng Yi ◽  
Dong Xiang Zhou ◽  
Wei Luo ◽  
Jian Feng Deng
Keyword(s):  
Magnetron Sputtering ◽  
Deposition Time ◽  
Rf Magnetron Sputtering ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Zno Film ◽  
Nano Zno ◽  
Axis Orientation ◽  
X Ray

Abstract. In this article, nano-ZnO films were deposited on SiO2/Si (100) substrates by RF (radio frequency) magnetron sputtering using high purity (99.99%) ZnO target. The effects of deposition time and annealing temperature have been investigated. XRD (X-ray diffraction) and FSEM (Field Emission Scanning Electron Microscopy) were employed to characterize the quality of the films. The results show that the ZnO film with thickness of 600nm annealed at 900°C has higher quality of both C-axis orientation and crystallization. And for the Zone film with thickness of 300nm annealed at 850°C, the quality of both C-axis orientation and crystallization is higher than that annealed at 900°C and 950°C.

Influence of Copper Concentration on the Structural and Optical Properties of Chemically Deposited CuSbS2 Thin Films

2016 ◽  
Vol 19 (1) ◽  
pp. 015-019 ◽  
Author(s):  
Jebadurai Joy Jeba Vijila ◽  
Kannusamy Mohanraj ◽  
Sethuramachandran Thanikaikarasan ◽  
Ganesan Sivakumar ◽  
Thaiyan Mahalingam ◽  
...  
Keyword(s):  
Thin Films ◽  
Field Emission ◽  
Secondary Phase ◽  
Diffraction Field ◽  
Spectroscopic Techniques ◽  
X Ray Diffraction ◽  
X Ray ◽  
Glass Substrates ◽  
Simple Chemical ◽  
Scanning Electron

Thin films of CuSbS2 have been deposited on ultrasonically cleaned glass substrates using a simple chemical bath deposition technique. Prepared films have been characterized using X-ray diffraction, Field Emission Scanning Electron Microscopy and UV-Vis-NIR spectroscopic techniques, respectively. X-ray diffraction analysis revealed that the prepared films possess polycrystalline in nature with orthorhombic CuSbS2 in addition to secondary phase of monoclinic Cu3SbS3 and cubic Cu12Sb4S13 for different copper concentrations. Field Emission Scanning Electron Spectroscopic analysis showed that the prepared films possess spherical shaped grains with irregular shaped clusters. Optical absorption analysis showed that the prepared films possess band gap value in the range between 1.7 and 2.4 eV.

Morphology and Photoluminescence of Zn/ZnO Core-Shell Structures by Water-Boiling Method

2013 ◽  
Vol 538 ◽  
pp. 242-245 ◽  
Author(s):  
Bao Gai Zhai ◽  
Qing Lan Ma ◽  
Rui Xiong ◽  
Yuan Ming Huang
Keyword(s):  
Zno Nanorods ◽  
Sem Analysis ◽  
Shell Structures ◽  
Core Shell ◽  
X Ray Diffraction ◽  
Xrd Pattern ◽  
X Ray ◽  
Spherical Morphology ◽  
Uv Emission ◽  
Two Peaks

Zn/ZnO core-shell structured composites were firstly synthesized by water-boiling method using induction cooker and electric cooker. The synthesized Zn/ZnO core-shell structures were characterized with X-ray diffraction (XRD), scanning electronic microscopy (SEM) and photoluminescence (PL) spectrophotometer, respectively. The XRD pattern confirms that the shells of the Zn/ZnO core-shell composites are composed of wurtzite ZnO crystals. Based on SEM analysis, the Zn/ZnO core-shell structures formed by intermittent boiling under induction cooker show a tendency for spherical morphology with stacked and bending ZnO shells while the ones formed by continuous boiling under electric cooker exhibit a spherical morphology with the irregular ZnO nanorods on the surface of Zn spheres, and the continuous boiling under electric cooker can promote the peeling and regeneration of ZnO shells on the surface of Zn cores. The PL spectra of the Zn/ZnO core-shell structures have been recorded at room temperature and observed two peaks around 379 nm and 538 nm. However, the defect emission is much stronger than the UV emission in the Zn/ZnO core-shell structures synthesized under electric cooker.

scholarly journals Effect some Factors on the Structural Properties of the CdS Thin Films Prepared by Chemical Bath Deposition

2016 ◽  
Vol 64 ◽  
pp. 1-10
Author(s):  
Fatma Salamon
Keyword(s):  
Thin Films ◽  
Chemical Bath Deposition ◽  
Deposition Time ◽  
X Ray Diffraction ◽  
Hexagonal Crystal ◽  
X Ray ◽  
Glass Substrates ◽  
Cds Thin Films ◽  
Temperature Deposition ◽  
Xrd Patterns

CdS thin films were prepared by chemical bath deposition technique (CBD) onto the glass substrates at different conditions of preparation. The obtained samples are studied by X-Ray diffraction (XRD). The XRD patterns of CdS samples revealed the formation with a hexagonal crystal structure P36mc, and the clear effect of the concentration of thiourea, cadmium sulfide, NaOH, time and temperature deposition, and annealing temperature, on the structure of the prepared thin films. through the study, we found that the samples have preferred orientation along [002], also the thickness of thin films decrease with deposition time after certain value, with the appearance of free cadmium. It has been found that the 200°C is the best temperature for annealing to improve the other structural and physical properties of films.

scholarly journals Correlation between Optical and Structural Properties of Chemically Deposited CdS Thin Films

2014 ◽  
Vol 30 ◽  
pp. 146-158 ◽  
Author(s):  
Raghad Y. Mohammed ◽  
S. Abduol ◽  
Ali M. Mousa
Keyword(s):  
Deposition Time ◽  
Lattice Parameter ◽  
Alkaline Solutions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Glass Substrates ◽  
Corning Glass ◽  
Profound Influence ◽  
Cds Thin Films ◽  
Strain Number

Polycrystalline Cadmium sulfide (CdS) films were deposited onto Corning glass substrates from alkaline solutions containing CdCl2, KOH, Na3C6H5O7 and CS(NH2)2 at different deposition times (10, 20, 30, 40 and 50 min), different bath temperatures and different concentration of the reactants. A comparative study was performed out on thin film via optical transmission and X-ray diffraction (XRD) measurements which reveal that the deposition time has a profound influence on the growth rate and band gap of the deposited layers. Diffraction data are used to evaluate the lattice parameter, grain size, average strain, number of crystallites per unit area and dislocation density in the film are calculated.

Effect of Deposition Time On Optical Properties of Chemical Bath Deposited Mercury Sulfide Thin Layers

2021 ◽  
Author(s):  
Haleh Kangarlou ◽  
Somayeh Asgary
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Deposition Time ◽  
Thin Layers ◽  
X Ray Diffraction ◽  
Mercury Sulfide ◽  
Preferential Growth ◽  
X Ray ◽  
Glass Substrates ◽  
Amorphous Glass

Abstract Mercury sulfide films were deposited on amorphous glass substrates from aqueous solutions by chemical bath deposition method (CBD) at same temperature and different deposition times. Produced layers were post annealed at 250°C about one hour. X-ray diffraction (XRD) was used to study of film’s crystalline structural. Their optical properties were measured by spectrophotometry in the spectra range of 400-850 nm, Kramers-Kronig method was used for the analysis of reflectivity curves of HgS films to obtain the optical constants of films in order to investigation of relation between deposition time and optical properties. According to X-ray diffraction details, all thin films showed crystalline phase with a preferential growth along the (220) planes. Optical results have been shown photolminisance property for HgS produced thin films. By increasing deposition time, the dielectric property, refractive index and band gap values are increased.

Controllable Synthesis of ZnO Nanorod Arrays via Simple Solution-Based Method

2006 ◽  
Vol 957 ◽  
Author(s):  
Patcharee Charoensirithavorn ◽  
Susumu Yoshikawa
Keyword(s):  
Transparent Conducting Oxide ◽  
Zno Nanorods ◽  
Solution Temperature ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
X Ray Diffraction ◽  
X Ray ◽  
Glass Substrates ◽  
Transparent Conducting

ABSTRACTHere we present a convenient solution-based method, which can afford a procedure to easily fabricate highly oriented ZnO nanorods on substrate at relatively low temperatures. The as-synthesized products have been characterized by scanning electron microscopy (SEM) and X-Ray diffraction (XRD). The results revealed that a densely packed and perpendicularly oriented single-crystalline ZnO nanorod arrays grew vertically on the fluorine-doped SnO2 transparent conducting oxide (FTO) glass substrates. In addition, we found that the length of the nanorod could be freely modified by controlling the solution temperature.

scholarly journals Structural and Optical Properties of Chemically Deposited CdS Thin Films

2014 ◽  
Vol 29 ◽  
pp. 91-104 ◽  
Author(s):  
Raghad Y. Mohammed ◽  
S. Abduol ◽  
Ali M. Mousa
Keyword(s):  
Deposition Time ◽  
Lattice Parameter ◽  
Alkaline Solutions ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
X Ray ◽  
Glass Substrates ◽  
Corning Glass ◽  
Cds Thin Films ◽  
Strain Number

Polycrystalline Cadmium sulfide (CdS) films were deposited onto Corning glass substrates from alkaline solutions containing CdCl2, KOH, Na3C6H5O7 and CS(NH2)2 at different deposition times (10, 20, 30, 40 and 50 min), bath temperatures (80 ±2 °C) and different concentration of the reactants. A comparative study was performed out on thin film via optical transmission and X-ray diffraction (XRD) measurements. The results which reveal that the deposition time has a profound influence on the growth rate and band gap of the deposited layers. Diffraction data was used to evaluate the lattice parameter, grain size, average strain, number of crystallites per unit area and dislocation density in the film are calculated.

Effects of Na2SO4 Concentrations on Electrodeposition of ZnO Film

2011 ◽  
Vol 236-238 ◽  
pp. 1996-1999
Author(s):  
Li Da Wang ◽  
Gui Chang Liu ◽  
Dong Feng Xue
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Zno Nanorods ◽  
Energy Dispersive ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Zno Film ◽  
X Ray ◽  
Scanning Electron

The effects of Na2SO4concentrations on the electrochemical deposited ZnO films have been investigated using scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), X-ray diffraction (XRD). The results show that Na2SO4concentration plays a very important role in directing the growth of films from rod-like ZnO to plate-like zinc hydroxysulfate under fast hydroxylation. At a lower Na2SO4concentration, the ZnO nanorods tend to be produced on the substrate. At a higher Na2SO4concentration, zinc hydroxysulfate plates can be preferentially formed.

scholarly journals Enhanced Ultraviolet Photodetector Based on Mg-Doped ZnO Nanorods Films

2019 ◽  
Vol 29 (3) ◽  
pp. 158 ◽  
Author(s):  
Hussein Abdullah Hameed
Keyword(s):  
Uv Light ◽  
Zno Nanorods ◽  
Optical Absorption Spectroscopy ◽  
Near Band Edge ◽  
X Ray Diffraction ◽  
X Ray ◽  
Glass Substrates ◽  
Metal Semiconductor Metal ◽  
Doped Zno ◽  
Mg Doped

Magnesium-doped zinc oxide (ZnO: Mg) nanorods and nanotubes films were prepared by hydrothermal method deposited on glass substrates. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), photoluminescence (PL), and optical absorption spectroscopy (UV) were performed to characterize the prepared films. X-ray diffraction analysis showed a decrease in the lattice parameters of Mg doped ZnO NRs. The Photoluminescence of the undoped and Mg-doped ZnO NRs displayed a near band edge. At 10 V bias, the metal-semiconductor-metal (MSM) ultraviolet (UV) photodetector performance of the Mg-doped ZnO prepared for various Mg concentrations of 0.0, 0.02, and 0.06 was investigated under radiation of 40μW/cm2 at the wavelengths of 365 and 385 nm UV light. The responsivity, detectivity and quantum efficiency of Mg-doped based on MSM detector were 0.118A/W, 1.0579*1012 and 40.05157 under UV of wavelength 365nm respectively.

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