Optical and Electrical Properties of Transparent Conduction ITO Films Prepared by Dip-Coating Process

2006 ◽  
Vol 11-12 ◽  
pp. 171-174
Author(s):  
Sheng Jie Piao ◽  
Jia Xiang Liu ◽  
Nan Zhang
Keyword(s):  
Sheet Resistance ◽  
Soda Lime ◽  
Heat Treating ◽  
Dip Coating ◽  
Float Glass ◽  
X Ray Diffraction ◽  
Ito Film ◽  
Dip Coating Technique ◽  
Resistance Value ◽  
Ito Films

Transparent conductive ITO films were fabricated on soda lime float glass substrate by colloid dip-coating technique from indium metal ingots and hydrous tin(IV) chloride. It was systematically studied that the effect of the electrical, the structure and optical properties of the ITO doped Sn in quantitative change and different heat-treating process by XRD, UV-VIS spectrophotometer and four-probe instrument. The results indicated that only cubic In2O3 phase was observed from the X-ray diffraction; with the amount of doped Snincreasing, the sheet resistance of ITO was up to minimumand thenincreased. The sheet resistance value decreased with the increase of the annealing temperature and holding time; the transmissivity of the ITO films was higher than 80% in 550 nm wavelength. The lowest sheet resistance value of ITO film which was 300nm thick was 153 ohms per square, which wasannealed at 600°C for 1h and doped Sn 10% (wt).

The Effect of Technological Condition on Electrical Properties of ITO Films

2007 ◽  
Vol 345-346 ◽  
pp. 1233-1236
Author(s):  
Sheng Nan Zeng ◽  
Jia Xiang Liu ◽  
Nan Zhang
Keyword(s):  
Electrical Properties ◽  
Sheet Resistance ◽  
Treatment Process ◽  
Sintering Temperature ◽  
Dip Coating ◽  
Stannic Chloride ◽  
Technological Condition ◽  
Quartz Glass Substrate ◽  
Dip Coating Technique ◽  
Ito Films

The transparent ITO multi-layers films were fabricated on quartz glass substrate by colloid dip-coating technique from indium metal ingots and stannic chloride. It was systematically studied that the effect of the electrical properties of the ITO on doped Sn in quantitative change, different dip-coating technological conditions such as thermal treatment process, coating number plies by four-probe instrument. From the 5 wt. % Sn to 20 wt. % Sn, with the amount of doped Sn increasing, the sheet resistance of ITO was up to minimum and then increased. Sintering temperature and holding time were the reasons for the electrical properties of the ITO films, when other parameters are unaltered. It is also concluded that coating number plies was play an important role on electrical properties of ITO films by sheet resistance. From the results of research, it can be seen that the multi-layer films has optimum characteristics, whose sheet resistance is 117'/□, when the use level of Sn is 10%wt,heated in 800°C 15min with repeated dip-coating seven times..

scholarly journals A Novel Approach for Accelerated Fabrication of Calcium Hydroxyapatite Thin Films

2019 ◽  
Vol 25 (4) ◽  
pp. 365-368
Author(s):  
Pranas USINSKAS ◽  
Živilė STANKEVIČIŪTĖ ◽  
Gediminas NIAURA ◽  
Justinas ČEPONKUS ◽  
Aivaras KAREIVA
Keyword(s):  
Sol Gel ◽  
Calcium Hydroxyapatite ◽  
Xrd Analysis ◽  
Dip Coating ◽  
Complexing Agents ◽  
X Ray Diffraction ◽  
Angle Measurements ◽  
Novel Approach ◽  
Contact Angle Measurements ◽  
Dip Coating Technique

In this study we demonstrate, that sol–gel route is suitable to quicker obtain calcium hydroxyapatite (Ca10(PO4)6(OH)2, CHAp) coatings on crystalline Si substrate by modified dip-coating technique. The substrate was dip-coated by precursor and dried for 10 minutes at 200 °C with following cooling using the heating block for 110 min and annealing at 650 °C. Ethylendiamintetraacetic acid and 1,2-ethandiol, and triethanolamine and polyvinyl alcohol were used as complexing agents and as gel network forming agents, respectively. The obtained coatings were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), FTIR spectroscopy and contact angle measurements (CAM).

Structural and Morphological Properties of HfxZr1-xO2 Thin Films Prepared by Pechini Route

2010 ◽  
Vol 644 ◽  
pp. 113-116
Author(s):  
L.A. García-Cerda ◽  
Bertha A. Puente Urbina ◽  
M.A. Quevedo-López ◽  
B.E. Gnade ◽  
Leo A. Baldenegro-Perez ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Annealing Temperature ◽  
Precursor Solution ◽  
Dip Coating ◽  
Morphological Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dip Coating Technique ◽  
Scanning Electron

In this study, HfxZr1-xO2 (0 < x < 1) thin films were deposited on silicon wafers using a dip-coating technique and by using a precursor solution prepared by the Pechini route. The effects of annealing temperature on the structure and morphological properties of the proposed films were investigated. HfxZr1-xO2 thin films with 1, 3 and 5 layers were annealed in air for 2 h at 600 and 800 °C and the structural and morphological properties studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD results show that the films have monoclinic and tetragonal structure depending of the Hf and Zr concentration. SEM photographs show that all films consist of nanocrystalline grains with sizes in the range of 6 - 13 nm. The total film thickness is about 90 nm.

Fabrication of Uniformly Growing Graphene Films via the Dip-Coating Method

2013 ◽  
Vol 320 ◽  
pp. 185-189
Author(s):  
Juan Yang ◽  
Hong Bo Sun ◽  
Dan Li
Keyword(s):  
Sheet Resistance ◽  
Photoelectron Spectroscopy ◽  
Dip Coating ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Graphene Films ◽  
Coating Method ◽  
Dip Coating Method ◽  
Dip Coating Technique

The graphene (GE) films were fabricated in this paper through the deposition of graphene oxide (GO) sheets onto the quartz slide by means of dip-coating technique, followed by thermal annealing. The growth process and transmittance of the film were monitored by ultraviolet and visible spectrophotometer (UV-Vis), the surface morphology and structure were investigated by Atomic force microscopy (AFM), Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Raman. The sheet resistance of the film was also tested and results showed that the sheet resistance is about 60 kΩ-1and the transmittance is as high as 81 % (at 550 nm).

Study on the Preparation and Photocatalytic Property of N, Fe, Zn Nano-TiO2 Loaded on Active Carbon

2011 ◽  
Vol 356-360 ◽  
pp. 331-334
Author(s):  
Chen Tao Hou ◽  
Xia He ◽  
Ying Wang ◽  
Wen Jie Nie
Keyword(s):  
Active Carbon ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Light Response ◽  
Average Diameter ◽  
Dip Coating ◽  
X Ray Diffraction ◽  
Photodegradation Efficiency ◽  
Photodegradation Rate ◽  
Dip Coating Technique

In the paper, tetranbutyl titanate was loaded on granular active carbon using sol-gel dip-coating technique to form anatase nano-TiO2 photocatalyst with an average diameter of 16nm doped with N, Fe, Zn ions. The morphology and crystal structure were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and UV–Vis spectrophotometer, respectively. The results show that the prepared photocatalyst demonstrates outstanding photodegradation efficiency and light response zone has transferred from ultraviolet light zone to UV-visible zone. Moreover, considering methylene blue (MB) as target degradation pollutant, under visible light irradiation, the photodegradation rate reached beyond 100% after 1h.

Characterization of Iron Oxide Nanoparticles for Sol-Gel Dip-Coating Method Prepared Thin Films

2013 ◽  
Vol 704 ◽  
pp. 275-280
Author(s):  
Janina Setina ◽  
Alona Gabrene ◽  
Inna Juhnevica ◽  
Gundars Mezinskis
Keyword(s):  
Thin Films ◽  
Iron Oxide ◽  
Iron Oxides ◽  
Sol Gel ◽  
Morphological Characteristics ◽  
Dip Coating ◽  
X Ray Diffraction ◽  
Coating Method ◽  
Dip Coating Method ◽  
Dip Coating Technique

The paper describes two methods of syntheses of iron oxides, microstructure and morphology of magnetite nanoparticles. Nanocomposite thin films of SiO2/Fe3O4 have been prepared with sol-gel dip coating technique: dip-coating from SiO2/Fe3O4 sol and encapsulation magnetite between two SiO2 layers. Structural and morphological characteristics of iron oxides particles and prepared film were analyzed by X-Ray Diffraction, SEM, FTIR, DTA, AFM. AFM topography of surface and measurements of roughness has shown that using iron oxide encapsulation between two SiO2 layers to provide the even distribution of iron oxide, results as high quality films with low Rq values 1.5 2.7 nm.

scholarly journals Study of Sputtered ITO Films on Flexible Invar Metal Foils for Curved Perovskite Solar Cells

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 120 ◽  
Author(s):  
Hae-Jun Seok ◽  
Han-Ki Kim
Keyword(s):  
Solar Cells ◽  
Sheet Resistance ◽  
Room Temperature ◽  
Perovskite Solar Cells ◽  
Optical Transmittance ◽  
Metal Substrate ◽  
Metal Foil ◽  
Ito Film ◽  
Bending Radius ◽  
Ito Films

We have studied characteristics of tin-doped indium oxide (ITO) films sputtered on flexible invar metal foil covered with an insulating SiO2 layer at room temperature to use as transparent electrodes coated substrates for curved perovskite solar cells. Sheet resistance, optical transmittance, surface morphology, and microstructure of the ITO films on SiO2/invar substrate are investigated as a function of the thickness from 50 to 200 nm. The optimized ITO film exhibits a low sheet resistance of 50.21 Ohm/square and high optical transmittance of up to 94.31% even though it is prepared at room temperature. In particular, high reflectance of invar metal substrate could enhance the power conversion efficiency of curved perovskite solar cell fabricated on the ITO/SiO2/invar substrate. In addition, critical bending radius of the 150 nm-thick ITO film is determined by lab-designed outer and inner bending tests to show feasibility as flexible electrode. Furthermore, dynamic fatigue test is carried out to show flexibility of the ITO film on invar metal substrate. This suggests that the ITO/SiO2/invar substrate can be applied as flexible electrodes and substrates for curved perovskite solar cells.

PREPARATION AND DETERMINATION OF OPTICAL PROPERTIES OF NiO THIN FILMS DEPOSITED BY DIP COATING TECHNIQUE

2007 ◽  
Vol 14 (02) ◽  
pp. 219-224 ◽  
Author(s):  
F. E. GHODSI ◽  
S. A. KHAYATIYAN
Keyword(s):  
Thin Films ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Dip Coating ◽  
Visible Range ◽  
X Ray Diffraction ◽  
Coating Technique ◽  
Number Of Layers ◽  
Dip Coating Technique

The NiO thin films were prepared from NiCl 2 · 6 H 2 O precursor by using sol–gel route. The films were deposited on a glass substrate using dip-coating technique. The optical and structural properties of the NiO thin films were investigated with respect to dipping rate, number of layers, and annealing temperature. The microstructure of NiO thin films and powder were examined by X-ray diffraction (XRD). Various diffraction peaks of NiO powder were observed in the XRD pattern. The morphology of the films was studied by using scanning electron microscopy (SEM). The optical characteristics of the samples were determined by using UV–visible spectrophotometer. The results show that the NiO thin films are transparent in the visible range. Optical constants (refractive index, extinction coefficient…) were changed by varying dipping rate, number of layers, and annealing temperature.

scholarly journals Figures of Merit for High-Performance Transparent Electrodes Using Dip-Coated Silver Nanowire Networks

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Sergio B. Sepulveda-Mora ◽  
Sylvain G. Cloutier
Keyword(s):  
Sheet Resistance ◽  
High Performance ◽  
Silver Nanowires ◽  
Optical Transmittance ◽  
Dip Coating ◽  
Silver Nanowire ◽  
Figures Of Merit ◽  
The One ◽  
Nanowire Networks ◽  
Dip Coating Technique

Homogeneous, highly conductive, and transparent silver nanowire thin films were fabricated using a simple dip-coating technique and a subsequent annealing step. Silver nanowires with two different average lengths (11 μm and 19 μm) were used in the sample preparation to analyze the dependence of the sheet resistance on the length of the one-dimensional nanostructures. The best sample had a sheet resistance of 10.2 Ω/□with optical transmittance of 89.9%. Two figures of merit, the electrical to optical conductivity ratio(σDC/σOP)andϕTC, were obtained for all the samples in order to measure their performance as transparent conductive materials.

Natural mulberry biomass fibers doped with silver as an antimicrobial textile: a new generation fabric

2021 ◽  
pp. 004051752110134
Author(s):  
Touseef Amna ◽  
M. Shamshi Hassan ◽  
Faheem A Sheikh ◽  
Hae Cheon Seo ◽  
Hyun-Chel Kim ◽  
...  
Keyword(s):  
Fibrous Composite ◽  
Bactericidal Effect ◽  
Dip Coating ◽  
Sem Analysis ◽  
X Ray Diffraction ◽  
Environment Friendly ◽  
E Coli ◽  
Dip Coating Technique ◽  
New Generation ◽  
First Time

In this study, silver-doped natural mulberry fibers were successfully obtained by the dip-coating technique. Arrays of material consisting of synthetic compounds (organic as well as inorganic) are being utilized to impart antimicrobial functionality to textiles. Therefore, the current study for the first time attempted to establish an innovative class of textiles made up of silver-doped natural mulberry fibers. This fabric will be utilized for the fabrication of antimicrobial socks. The morphology, physicochemical and antibacterial characteristics of Ag-doped mulberry fibers were scanned via X-ray diffraction (XRD), scanning electron microscopy (SEM), electron probe microanalysis, Fourier transform infrared spectroscopy (FTIR) and antibacterial testing. SEM analysis evidently demonstrated uniform distribution of Ag on mulberry fibers and the outcome of XRD and FTIR analyses authenticated assimilation of Ag in the Ag-doped mulberry composite. The Ag-doped mulberry fibers revealed venerable antibacterial action against representative bacterium E. coli. The antibacterial analysis lead to the conclusion that the Ag-doped mulberry fiber textile has an enhanced bactericidal effect owing to the synergism of Ag and mulberry compounds. Moreover, Ag imparted an anti-odor effect on mulberry fiber. These distinctive organic–inorganic fibrous composite socks are antimicrobial, odor free and skin and environment friendly. Thus, this study recommends the use of Ag-doped mulberry fibers as a future material for the preparation of durable antibacterial new generation socks. These composite fibers can also be used as textile material for clothes such as sportswear and for medical purposes; for instance, bedcovers in hospital beds, etc.

Sign in / Sign up

Export Citation Format

Share Document