Growth of TiO2–Nb2O5 mixed thin films by metal–organic decomposition

The influence of mixed metal–organic decomposition (MOD) coating materials has been studied based on the crystal growth of TiO2 and TiO2–Nb2O5 mixed thin films. These thin films were grown on quartz substrates using a dip-coating method. The crystal structures of TiO2 films are well known to depend on sintering temperature, whereas the surface morphologies are not significantly affected by sintering temperature. Nb2O5 was mixed with the TiO2 source material as a possible electron donor. The Nb content of the TiO2–Nb2O5 mixed thin film depended on the Nb mole ratio in the TiO2–Nb2O5 mixed MOD coating material. Large crystal grains were observed with increasing Nb content in the TiO2–Nb2O5 mixed thin film, although Nb was inactive as a donor. It can be concluded that Nb enhances the growth of TiO2 by MOD. This enhancement of crystal growth by the intentional addition of an impurity can be expected to improve the characteristics of other semiconductor materials grown by wet processes.

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PREPARATION AND CHARACTERIZATION OF POLYVINYL ALCOHOL THIN FILMS FOR ORGANIC THIN FILM TRANSISTORS AND BIOMEDICAL APPLICATIONS

Kongunadu Research Journal ◽

10.26524/krj264 ◽

2018 ◽

Vol 5 (2) ◽

pp. 16-18

Author(s):

Chandar Shekar B ◽

Ranjit Kumar R ◽

Dinesh K.P.B ◽

Sulana Sundar C ◽

Sunnitha S ◽

...

Keyword(s):

Thin Film ◽

Thin Films ◽

Thin Film Transistors ◽

Gravimetric Method ◽

Dip Coating ◽

Organic Thin Film Transistors ◽

Poly Vinyl Alcohol ◽

Organic Thin Film ◽

Glass Substrates ◽

Coating Method

Thin films of poly vinyl alcohol (PVA) were prepared on pre-cleaned glass substrates by Dip Coating Method. FTIR spectrum was used to identify the functional groups present in the prepared films. The vibrational peaks observed at 1260 cm-1 and 851 cm-1 are assigned to C–C stretching and CH rocking of PVA.The characteristic band appearing at 1432 cm-1 is assigned to C–H bend of CH2 of PVA. The thickness of the prepared thin films were measured by using an electronic thickness measuring instrument (Tesatronic-TTD20) and cross checked by gravimetric method. XRD spectra indicated the amorphous nature of the films.Surface morphology of the coated films was studied by scanning electron microscope (SEM). The surface revealed no pits and pin holes on the surface. The observed surface morphology indicated that these films could be used as dielectric layer in organic thin film transistors and as drug delivery system for wound healing.

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Strong Hole Self-Doping in LaMnO3 Thin Film on a-SiO2 Substrate Produced by Metal Organic Decomposition Method

Materials Science Forum ◽

10.4028/www.scientific.net/msf.962.17 ◽

2019 ◽

Vol 962 ◽

pp. 17-21 ◽

Cited By ~ 1

Author(s):

Hiromi Kobori ◽

Tohru Kitamura ◽

Toshifumi Taniguchi ◽

Tetsuo Shimizu

Keyword(s):

Thin Film ◽

Thin Films ◽

Heat Treatment ◽

Single Crystal ◽

Decomposition Method ◽

Treatment Conditions ◽

Gas Atmosphere ◽

Metal Organic ◽

Temperature Time ◽

Organic Decomposition

We have studied the strong hole self-doping into LaMnO3(LMO) thin films produced by metal organic decomposition (MOD) method. With different heat treatment conditions, LMO thin films have been prepared by the MOD method in the 100 % O2gas atmosphere. We consider that the excess of O2-ions in LMO thin films induces the strong hole self-doping into LMO ones. The quantity of excess O2-ions in LMO is sensitive to the heat treatment conditions of the LMO production, especially the temperature, time and atmosphere gas. Although LMO single crystal is an antiferromagnetic insulator, LMO thin films we have produced in the 100 % O2gas atmosphere by use of the MOD method shows the properties of ferromagnetic metal.

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Effect of co-sintering temperature on the performance of SOFC with YSZ electrolyte thin films fabricated by dip-coating method

Journal of Solid State Electrochemistry ◽

10.1007/s10008-009-0832-3 ◽

2009 ◽

Vol 14 (4) ◽

pp. 637-642 ◽

Cited By ~ 13

Author(s):

Zhenhua Wang ◽

Kening Sun ◽

Shuiyun Shen ◽

Xiaoliang Zhou ◽

Jinshuo Qiao ◽

...

Keyword(s):

Thin Films ◽

Sintering Temperature ◽

Dip Coating ◽

Coating Method ◽

Dip Coating Method ◽

Ysz Electrolyte

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THE THICKNESS OF A THIN FILM SYNTHESIZED FROM LIDAH MERTUA PLANT (SANSEVIERIA TRIFASCIATA) USING A DIP COATING METHOD

Indonesian Physical Review ◽

10.29303/ipr.v2i3.34 ◽

2019 ◽

Vol 2 (3) ◽

pp. 123

Author(s):

Ervina Sandra Dewi ◽

Siti Alaa ◽

Dian Wijaya Kurniawidi ◽

Susi Rahayu

Keyword(s):

Thin Film ◽

Thin Films ◽

Optical Properties ◽

Wavelength Range ◽

Coating Thickness ◽

Immersion Time ◽

Dip Coating ◽

Coating Method ◽

Dip Coating Method

A study has been conducted on the characterization of optical properties of thin films from lidah mertua (Sansevieria trifasciata) with dip coating method. The dip coating method was applied with different temperature and different time immersion treatments. The measuring variables in the manufacture of this thin film were tested based on the optical properties of their absorbance value of the extract and the thicknessof thin film. The absorbance spectral of extraction pigments were measured using UV-Vis in the wavelength range 350 nm to 700 nm. The results of the measurements showed that the extract of the S. trifasciata has high absorbance. Beside that, the minimum coating thickness is produced by a concentration of 12.5% with a 5 minute immersion time of 520 nm.

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Effect of Annealing Temperatures and Pre-Heating on the Characteristics of a Nanocrystalline Zno Thin Film Prepared by the Sol-Gel Dip-Coating Method

Zeitschrift für Naturforschung A ◽

10.1515/zna-2008-7-809 ◽

2008 ◽

Vol 63 (7-8) ◽

pp. 440-444 ◽

Cited By ~ 5

Author(s):

Mohammad Hossein Habibi ◽

Mohammad Khaledi Sardashti

Keyword(s):

Thin Film ◽

Thin Films ◽

Annealing Temperature ◽

Sol Gel ◽

Dip Coating ◽

Zno Thin Films ◽

Zno Thin Film ◽

Annealing Temperatures ◽

Coating Method ◽

Dip Coating Method

For effectively fabricating nanocrystalline ZnO thin films by the sol-gel method, the relationships between the temperature of the heat treatment and the quality of the ZnO thin films was observed. The decomposition of the sol was analyzed by TG-DTA. The orientation of the c-axis of the ZnO thin film was identified by XRD. The morphology was observed and estimated by SEM. The experimental results did show that the orientation of the c-axis is determined by the pre-heating and annealing temperatures, and that the grain size and roughness of the ZnO thin films are mainly influenced by the annealing temperature. A qualified ZnO thin film was prepared by using a sol-gel with a preheating temperature of 275 °C for 10 min and an annealing temperature of 550 °C for 60 min.

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Effects of Excess Bismuth Content on Microstructure and Electric Properties of Europium-Substituted Bismuth Titanate Thin Films

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.788.89 ◽

2013 ◽

Vol 788 ◽

pp. 89-94 ◽

Cited By ~ 1

Author(s):

Lin He ◽

Geng Zhang

Keyword(s):

Thin Film ◽

Thin Films ◽

Current Density ◽

Remnant Polarization ◽

Decomposition Method ◽

Bismuth Titanate ◽

Electric Properties ◽

Metal Organic ◽

Fatigue Endurance ◽

Organic Decomposition

Bi3.25Eu0.75Ti3O12 (BET) thin films with various excess bismuth (Bi) contents (5, 10, 15, 20-mol%) were grown by a metal-organic decomposition method at 700 °C. Effects of excess Bi content on microstructure and electric properties of BET thin films were investigated. BET thin film with 10-mol% excess Bi content shows larger remnant polarization (66.3 C/cm2), better fatigue endurance (3% loss of 2Pr after 1.8×1010 switching cycles), and lower leakage current density (1×10-7 A/cm2) than those of other prepared BET thin films. Additionally, the mechanisms concerning the dependence of the properties on excess Bi content of BET thin films were discussed.

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Charge Trapping and Degradation Properties of PZT Thin Films for MEMS

MRS Proceedings ◽

10.1557/proc-444-161 ◽

1996 ◽

Vol 444 ◽

Cited By ~ 1

Author(s):

Hyeon-Seag Kim ◽

D. L. Polla ◽

S. A. Campbell

Keyword(s):

Thin Films ◽

Loss Factor ◽

High Field ◽

Microelectromechanical Systems ◽

Charge Trapping ◽

Metal Organic ◽

Electrical Reliability ◽

Silicon Based ◽

Degradation Properties ◽

Organic Decomposition

AbstractThe electrical reliability properties of PZT (54/46) thin films have been measured for the purpose of integrating this material with silicon-based microelectromechanical systems. Ferroelectric thin films of PZT were prepared by metal organic decomposition. The charge trapping and degradation properties of these thin films were studied through device characteristics such as hysteresis loop, leakage current, fatigue, dielectric constant, capacitancevoltage, and loss factor measurements. Several unique experimental results have been found. Different degradation processes were verified through fatigue (bipolar stress), low and high charge injection (unipolar stress), and high field stressing (unipolar stress).

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Heat Scanning for the Fabrication of Conductive Fibers

Polymers ◽

10.3390/polym13091405 ◽

2021 ◽

Vol 13 (9) ◽

pp. 1405

Author(s):

Jina Jang ◽

Haoyu Zhou ◽

Jungbae Lee ◽

Hakgae Kim ◽

Jung Bin In

Keyword(s):

Silver Nanowires ◽

Building Blocks ◽

Dip Coating ◽

Coating Materials ◽

Scanning Time ◽

Silver Ink ◽

Nylon Fiber ◽

Coating Method ◽

Conductive Fibers ◽

Tubular Heater

Conductive fibers are essential building blocks for implementing various functionalities in a textile platform that is highly conformable to mechanical deformation. In this study, two major techniques were developed to fabricate silver-deposited conductive fibers. First, a droplet-coating method was adopted to coat a nylon fiber with silver nanoparticles (AgNPs) and silver nanowires (AgNWs). While conventional dip coating uses a large ink pool and thus wastes coating materials, droplet-coating uses minimal quantities of silver ink by translating a small ink droplet along the nylon fiber. Secondly, the silver-deposited fiber was annealed by similarly translating a tubular heater along the fiber to induce sintering of the AgNPs and AgNWs. This heat-scanning motion avoids excessive heating and subsequent thermal damage to the nylon fiber. The effects of heat-scanning time and heater power on the fiber conductance were systematically investigated. A conductive fiber with a resistance as low as ~2.8 Ω/cm (0.25 Ω/sq) can be produced. Finally, it was demonstrated that the conductive fibers can be applied in force sensors and flexible interconnectors.

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