ZnO films fabricated by chemical bath deposition from zinc nitrate and ammonium citrate tribasic solution

2008 ◽  
Vol 516 (21) ◽  
pp. 7318-7322 ◽  
Author(s):  
Z.Y. Wu ◽  
J.H. Cai ◽  
G. Ni
Keyword(s):  
Chemical Bath Deposition ◽  
Zinc Nitrate ◽  
Ammonium Citrate ◽  
Zno Films

Characteristics of Zinc Oxide Film Prepared by Chemical Bath Deposition Method

2014 ◽  
Vol 602-603 ◽  
pp. 871-875
Author(s):  
Yen Pei Fu ◽  
Jian Jhih Chen
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Chemical Bath Deposition ◽  
Deposition Time ◽  
Oxide Films ◽  
Hexagonal Structure ◽  
Zno Films ◽  
Zinc Oxide Film ◽  
Incident Wavelength ◽  
Zinc Oxide Films

In this study, ZnO films, prepared by Chemical Bath Deposition (CBD), are applied as the conductive layers for thin film solar cells. Zinc acetate is used as a source of zinc, and different proportions of ammonia solution are added and well mixed. The growth of zinc oxide films in reaction solutions is taken place at 80°C and then heated to 500°C for one hour. In this study, the different ammonia concentrations and deposition times is controlled. The thin film structure is Hexagonal structure, which is determined by X-ray diffraction spectrometer (XRD) analysis. Scanning electron microscopy (SEM) is used as the observation of surface morphology, the bottom of the film is the interface where the heterogeneous nucleation happens. With the increase of deposition time, there were a few attached zinc oxide particles, which is formed by homogeneous nucleation. According to UV / visible light (UV / Vis) absorption spectrometer transmittance measurements and the relationship between/among the incident wavelength, it can be converted to the energy gaps (Eg), which are about 3.0 to 3.2eV, by using fluorescence spectroscopy analysis. The emission of zinc oxide films has two wavelengths which are located on 510nm and 570nm. According to Based on the all analytic results, the ammonia concentration at 0.05M, and the deposition time is 120 minutes, would obtain the conditions of ZnO films which is more suitable for applications of conductive layer material in thin film solar cell.

Unique structure of ZnO films deposited by chemical bath deposition

2009 ◽  
Vol 206 (11) ◽  
pp. 2551-2554
Author(s):  
Dewei Chu ◽  
Yoshitake Masuda ◽  
Kazumi Kato ◽  
Takahiro Hamada
Keyword(s):  
Chemical Bath Deposition ◽  
Zno Films ◽  
Unique Structure

Direct growth of ZnO crystals on various Cu substrates by Cu-catalyzed chemical bath deposition

CrystEngComm ◽  
2019 ◽  
Vol 21 (15) ◽  
pp. 2476-2480 ◽  
Author(s):  
Tsutomu Shinagawa ◽  
Hisaya Takahashi ◽  
Masanobu Izaki
Keyword(s):  
Aqueous Solution ◽  
Chemical Bath Deposition ◽  
Zinc Nitrate ◽  
Catalytic Action ◽  
Ambient Atmosphere ◽  
Dimethylamine Borane ◽  
Cu Substrates ◽  
Direct Growth

By the catalytic action of Cu on DMAB, ZnO crystals grow directly on various Cu substrates immersed in an aqueous solution containing zinc nitrate and dimethylamine borane at 80 °C under an ambient atmosphere.

GROWTH CONTROL OF ZnO FILMS ON GLASS BY CHEMICAL BATH DEPOSITION

2006 ◽  
Vol 13 (04) ◽  
pp. 369-373 ◽  
Author(s):  
MUNAN YU ◽  
HAIYAN XU ◽  
HAO WANG ◽  
HUI YAN ◽  
ZHILIANG PEI ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Chemical Bath Deposition ◽  
Deposition Temperature ◽  
Growth Control ◽  
Solution Concentration ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Axis Orientation ◽  
X Ray ◽  
Scanning Electron

The effects of substrate-placing manner, deposition temperature and solution concentration on the preparation of ZnO films by chemical bath deposition were investigated in this work. The structures and the morphologies of as-deposited ZnO films were characterized by X-ray diffraction and scanning electron microscope, respectively. The results show that compared with vertically insertion, floating the substrates on the solutions could greatly improve the c-axis orientation of the films. The growth of ZnO films with orientation would also be favored at lower precursor concentrations and temperatures. When the concentration of Zn ( CH 3 COO )2·2 H 2 O is 0.033 M/L and the deposited temperature is 60°C, ZnO films which are well crystallized and highly c-axis orientated were obtained.

scholarly journals Optical and Sensing Properties of Cu Doped ZnO Nanocrystalline Thin Films

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
R. K. Shukla ◽  
Anchal Srivastava ◽  
Nishant Kumar ◽  
Akhilesh Pandey ◽  
Mamta Pandey
Keyword(s):  
Optical Band Gap ◽  
Gas Sensing ◽  
Hexagonal Wurtzite Structure ◽  
Zinc Nitrate ◽  
Zno Films ◽  
In Doping ◽  
Doped Zno ◽  
Sensing Characteristics ◽  
Nanocrystalline Thin Films ◽  
Morphology Changes

Undoped and Cu doped ZnO films of two different molarities deposited by spray pyrolysis using zinc nitrate and cupric chloride as precursors show polycrystalline nature and hexagonal wurtzite structure of ZnO. The crystallite size varies between 10 and 21 nm. Doping increases the transmittance of the films whereas the optical band gap of ZnO is reduced from 3.28 to 3.18 eV. With increment in doping the surface morphology changes from irregular shaped grains to netted structure with holes and then to net making needle-like structures which lends gas sensing characteristics to the films. Undoped ZnO shows maximum sensitivity at 400°C for higher concentration of CO2. The sensitivity of Cu doped sample is maximum at 200°C for all CO2concentrations from 500 to 4000 ppm.

Controlling the Crystallite Size of Zinc Oxide Nanorods via Chemical Bath Deposition and Post-Hydrothermal Treatment

2013 ◽  
Vol 737 ◽  
pp. 28-32 ◽  
Author(s):  
Amalia Sholehah ◽  
Akhmad Herman Yuwono ◽  
Cyndi Rinaldi Rimbani
Keyword(s):  
Crystallite Size ◽  
Hydrothermal Treatment ◽  
Chemical Bath Deposition ◽  
Zno Nanorods ◽  
Visible Region ◽  
Band Gap Energy ◽  
Zinc Nitrate ◽  
Hexagonal Structure ◽  
Zinc Oxide Nanorods ◽  
Ito Glass

ZnO nanorods were deposited on ITO glass substrate via chemical bath deposition at low temperature of 90°C. The seeding solution was made by dissolving zinc nitrate tetrahydrate and methenamine in cool water (5°C). The as-synthesized ZnOs were further subjected to post-hydrothermal treatment series.The results of scanning electron microscope (SEM) studies showed that the ZnO nanorods were grown as vertically-aligned hexagonal structure, while x-ray diffraction (XRD) patterns showed a high intensity of [002] peak. The absorption spectra of the as-synthesized sample indicated a strong absorption peak near the UV region. After post-hydrothermal treatments, the absorption was slightly shifted to visible region. The ZnO nanorods sample derived from post-hydrothermal treatment at 150°C for 12 hours has the largest crystallite size of 269.402 nm and the lowest band gap energy, Egvalue of 3.205 eV.

scholarly journals Synthesis of Ni-Doped ZnO Nanorod Arrays by Chemical Bath Deposition and Their Application to Nanogenerators

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2731 ◽  
Author(s):  
Yen-Lin Chu ◽  
Sheng-Joue Young ◽  
Liang-Wen Ji ◽  
Tung-Te Chu ◽  
Po-Hao Chen
Keyword(s):  
Chemical Bath Deposition ◽  
Indium Tin Oxide ◽  
Electron Beam Evaporation ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Glass Substrates ◽  
Ito Glass ◽  
Evaporation Technique ◽  
Doped Zno ◽  
Cbd Method

Nanogenerators (NGs) based on Ni-doped ZnO (NZO) nanorod (NR) arrays were fabricated and explored in this study. The ZnO films were grown on indium tin oxide (ITO) glass substrates, and the NZO NRs were prepared by the chemical bath deposition (CBD) method. The samples were investigated via field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) spectral analysis. The results showed that the growth of NRs presented high-density single crystalline structures and were preferentially oriented in the c-axis direction. The optical characteristics of the NZO NRs were also measured by photoluminescence (PL) spectra. All samples exhibited two different emissions, including ultraviolet (UV) and green emissions. ITO etching paste was used to define patterns, and an electrode of Au film was evaporated onto the ITO glass substrates by the electron beam evaporation technique to assemble the NG device. In summary, ZnO NRs with Ni dopant (5 mM) showed significantly excellent performance in NGs. The optimal measured voltage, current, and power for the fabricated NGs were 0.07 V, 10.5 µA, and 735 nW, respectively.

scholarly journals Growth Time Effect on the Structural and Sub-Structural Properties of Chemically-Deposited ZnO Films

2015 ◽  
Vol 1117 ◽  
pp. 168-178 ◽  
Author(s):  
Taisiia O. Berestok ◽  
Denys I. Kurbatov ◽  
Anatoliy S. Opanasyuk ◽  
Andreu Cabot ◽  
Hyeon Sik Cheong
Keyword(s):  
Grain Size ◽  
Structural Properties ◽  
Domain Size ◽  
Coherent Scattering ◽  
Zinc Nitrate ◽  
Growth Time ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Lattice Constants ◽  
Crystallographic Planes

Nanostructured ZnO films are obtained by chemical bath deposition from zinc nitrate, hexamethylenetetramine and ammonia. The evolution of the structural and sub-structural properties of the films is characterized using high resolution scanning electron microscopy (SEM) and X-ray diffraction analysis. In particular, we detail here the influence of condensation time on the crystal phase, texture quality, lattice constants, grain size, coherent scattering domain size (CSD), microstrain, stress and concentration of dislocations. Obtained condensates have the wurtzite structure with lattice parameters in the rangea= 0.3248-0.3254 nm andc= 0.5206-0.5214 nm, depending on the condensation time. The grain size and microstrain in the direction perpendicular to the crystallographic planes (002) are in the rangeL~ 26-42 nm andε~ (0.59-3.09)·10-3, respectively. Furthermore, the effects of deposition time on microstrain, stress and concentration of dislocations in the layers is established. By adjusting the condensation time, we are able to produce ZnO films with controlled structural properties: from nanorods to continuous nanostructured films.

scholarly journals Synthesis and Characterization of Na Doped ZnO Rods Grown by Simple Chemical Method

2020 ◽  
Vol 26 (4) ◽  
pp. 387-391
Author(s):  
Sibel MORKOÇ KARADENİZ ◽  
Hatice Kübra BÖLÜKBAŞI ÇIPLAK ◽  
Ali Ercan EKİNCİ
Keyword(s):  
Optical Properties ◽  
Chemical Method ◽  
Zinc Nitrate ◽  
Zno Films ◽  
Nitrate Hexahydrate ◽  
X Ray ◽  
Structure Morphology ◽  
Simple Chemical ◽  
Doped Zno

In this study, the effects of Na doped on the structure, morphology, and optical properties of the ZnO films deposited on glass substrate were investigated. The films were synthesized on glass substrates via a simple chemical method. Undoped and Na-doped ZnO films were obtained from an aqueous solution of the Zinc nitrate hexahydrate (Zn(NO3)2·6H2O), Sodium Nitrate (NaNO3) and hexamethylenetetramine-HMT (C6H12N4). Characterization of the films was examined using a Scanning electron microscope (SEM) and X-ray diffractometer (XRD), Ultraviolet-Visible spectrophotometer (UV-Vis) and X-Ray Photoelectron (XPS). The structure, morphology, and optical properties of the films were presented. The wurtzite ZnO films showed rod arrays morphology. The optical band gap increased with the doping of Na metal. The result shows that Na addition affected the properties of the ZnO films.

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