scholarly journals Screen Printed La2/3Sr1/3MnO3 Thick Films on Alumina Substrates

1998 ◽  
Vol 13 (9) ◽  
pp. 2623-2631 ◽  
Author(s):  
L. Durand ◽  
Ll. Balcells ◽  
A. Calleja ◽  
J. Fontcuberta ◽  
X. Obradors
Keyword(s):  
High Temperature ◽  
Mechanical Stress ◽  
Screen Printing ◽  
Thick Films ◽  
High Resistivity ◽  
Low Field ◽  
Screen Printing Technique ◽  
Printing Technique ◽  
Screen Printed

We report here on the preparation of La2/3Sr1/3MnO3 magnetoresistive thick films on polycrystalline Al2O3 substates by using the screen printing technique. It is shown that films can be obtained using high temperature sintering. While there is a reacted layer, this improves adhesion and is not too troublesome if the films are made thick enough. It is shown that PbO–B2O3 –SiO2 glass additives allow sintering at lower temperatures and can be used to improve the mechanical stress of the films. However, it is found that glass concentrations large enough to significantly improve the film adherence result in a weak low field magnetoresistance probably because grains are coated with high resistivity material. Strategies to overcome these difficulties are discussed.

Screen-printed graphene-based electrochemical sensors for a microfluidic device

2017 ◽  
Vol 9 (24) ◽  
pp. 3689-3695 ◽  
Author(s):  
C. Karuwan ◽  
A. Wisitsoraat ◽  
P. Chaisuwan ◽  
D. Nacapricha ◽  
A. Tuantranont
Keyword(s):  
Microfluidic Device ◽  
Screen Printing ◽  
Electrochemical Sensors ◽  
Amperometric Detection ◽  
New Method ◽  
Screen Printing Technique ◽  
Printing Technique ◽  
Electrochemical Electrodes ◽  
Screen Printed

This work presents a new method for mass fabrication of a new microfluidic device with integrated graphene-based electrochemical electrodes by the screen printing technique for in-channel amperometric detection.

scholarly journals Photoelectric Properties of Screen-Printed Al-Doped ZnO Films

2012 ◽  
Vol 49 (2) ◽  
pp. 51-56
Author(s):  
A. Ogurcovs ◽  
Vj. Gerbreders ◽  
E. Tamanis ◽  
S. Gerbreders ◽  
G. Liberts
Keyword(s):  
Screen Printing ◽  
Energy Use ◽  
Zno Films ◽  
Photovoltaic Devices ◽  
Photoelectric Properties ◽  
Linear Relationships ◽  
Screen Printing Technique ◽  
Printing Technique ◽  
Doped Zno ◽  
Screen Printed

Photoelectric Properties of Screen-Printed Al-Doped ZnO Films The potential of cheap semiconductor materials in the area of solar energy use is illustrated by the example of zinc oxide (pure and Al-doped in various concentrations). Under investigation was the electric conductivity and photoelectric properties of ZnO thin films. The samples were prepared using screen-printing technique. The results of measurements point to non-linear relationships between Al concentration, photosensitivity and electrical conductivity of thin ZnO films. Optimal Al concentration for practical use of ZnO in photovoltaic devices is found to be ~ 1%. The experimental methods, technologies and results described in the paper could be used for further investigations in this area.

POLYETHYLENE OXIDE-CU COMPOSITE THICK FILMS FOR LPG SENSING

2011 ◽  
Vol 25 (31) ◽  
pp. 4199-4203
Author(s):  
P. S. MORE ◽  
Y. B. KHOLLAM ◽  
PANKAJ KOINKAR ◽  
N. D. SALI ◽  
P. N. SHELKE ◽  
...  
Keyword(s):  
Polyethylene Oxide ◽  
Screen Printing ◽  
Gas Sensing ◽  
Thick Films ◽  
Sensing System ◽  
Screen Printing Technique ◽  
Printing Technique ◽  
Cu Additive ◽  
Very High ◽  
Lpg Sensing

The LPG gas sensing response of polyethylene oxide ( PEO )- Cu ( Cu = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1.0 wt. %) composite thick films prepared on alumina substrates by using novel screen printing technique are reported in present paper. The gas sensing responses of films were tested at 1000 ppm of LPG by using home-built static gas sensing system [between room temperature - 50 °C]. A very high value of SF = 1400 was obtained at an optimum temperature of 47 °C for a film with Cu = 0.7 wt.%. Further, better LPG sensing response, SF = 700 was obtained at low operating temperature = 36 °C for a film with Cu = 0.2 wt. %. The LPG sensing responses of the films were found to be strongly influenced by concentration level of Cu additive.

Realization of hexagonal barium ferrite thick films on Si substrates using a screen printing technique

2008 ◽  
Vol 41 (9) ◽  
pp. 095006 ◽  
Author(s):  
Yajie Chen ◽  
Ian Smith ◽  
Anton L Geiler ◽  
Carmine Vittoria ◽  
Volodymyr Zagorodnii ◽  
...  
Keyword(s):  
Barium Ferrite ◽  
Screen Printing ◽  
Thick Films ◽  
Si Substrates ◽  
Screen Printing Technique ◽  
Printing Technique ◽  
Hexagonal Barium Ferrite

scholarly journals Synthesis and characterization of screen-printed CdS films

2011 ◽  
Vol 43 (3) ◽  
pp. 335-341 ◽  
Author(s):  
V. Kumar ◽  
D.K. Sharma ◽  
M.K. Bansal ◽  
D.K. Dwivedi ◽  
T.P. Sharma
Keyword(s):  
Screen Printing ◽  
Cadmium Sulphide ◽  
Optimum Conditions ◽  
X Ray Diffraction ◽  
Screen Printing Technique ◽  
Clean Glass Substrate ◽  
Printing Technique ◽  
Cds Films ◽  
Screen Printed

Cadmium sulphide films having energy band gap of 2.4 eV found applications in solar cells and electroluminescent devices. CdS polycrystalline films have been prepared on ultra-clean glass substrate by screen-printing technique and then sintered in air. Optimum conditions for preparing good quality screen-printed films have been found. The optical band gaps ?Eg? of the CdS films were determined from the UV transmission spectroscopy and were found to be 2.47eV. The Wurtzite structure of CdS films was confirmed by X-ray diffraction analysis. DC conductivity and activation energy of films was also measured in vacuum by two-probe technique.

scholarly journals Few-Layer Graphene based Printed Flexible Asymmetric Supercapacitor

2019 ◽  
Author(s):  
Ankit Singh ◽  
Kaushik Ghosh ◽  
Sushil Kumar ◽  
Ashwini Agrawal ◽  
Manjeet Jassal ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Temperature ◽  
Screen Printing ◽  
Low Cost ◽  
Banana Peel ◽  
Asymmetric Supercapacitor ◽  
Layer Graphene ◽  
Screen Printing Technique ◽  
Printing Technique ◽  
Few Layer Graphene

We have developed a flexible planar asymmetric supercapacitor demonstrating high energy storage capability which can be utilized to power various flexible and wearable electronic devices. Locally available cheap source of biomass such as banana peel was utilized for synthesizing carbonaceous materials like few-layer graphene and activated carbon for electrode material application. Few-layer graphene was synthesized by heating banana peel at high temperature under inert atmosphere followed by crushing with mortar-pestle. Activated carbon was synthesized by heating banana peel impregnated with KOH at high temperature in absence of air. The device was fabricated by using low-cost screen printing technique to print current collectors followed by deposition of active electrode materials and sandwiching filter paper soaked in gel electrolyte in between the electrodes. The fabricated devices showed high areal capacitance of 88.31mF/cm2 at 10 mV/s scan rate. The device also showed satisfactory performance under multiple electronic cycling (100 cycles) and bending conditions. The device can be fabricated on a large scale using low-cost screen printing technique and cheaply available biomass which can be further utilized for developing emerging flexible electronics.

scholarly journals Barium titanate thick films prepared by screen printing technique

2010 ◽  
Vol 4 (2) ◽  
pp. 53-58 ◽  
Author(s):  
Mirjana Vijatovic ◽  
Jelena Bobic ◽  
Biljana Stojanovic ◽  
Barbara Malic
Keyword(s):  
Electrical Properties ◽  
Barium Titanate ◽  
Screen Printing ◽  
Thick Films ◽  
Temperature Hysteresis ◽  
Chemical Route ◽  
Air Atmosphere ◽  
Screen Printing Technique ◽  
Printing Technique ◽  
Silver Palladium

The barium titanate (BaTiO3) thick films were prepared by screen printing technique using powders obtained by soft chemical route, modified Pechini process. Three different barium titanate powders were prepared: i) pure, ii) doped with lanthanum and iii) doped with antimony. Pastes for screen printing were prepared using previously obtained powders. The thick films were deposited onto Al2O3 substrates and fired at 850?C together with electrode material (silver/palladium) in the moving belt furnace in the air atmosphere. Measurements of thickness and roughness of barium titanate thick films were performed. The electrical properties of thick films such as dielectric constant, dielectric losses, Curie temperature, hysteresis loop were reported. The influence of different factors on electrical properties values was analyzed.

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