SnO2 doped In2O3 thin films as reducing gas sensors

Bushra A. Hasan

doi:10.1088/1757-899X/928/7/072011

Details

Publication Date

Sun Nov 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Volume

928

DOI

10.1088/1757-899X/928/7/072011

Choose Citation Style

Statistics

(9)

(7)

SnO2 doped In2O3 thin films as reducing gas sensors

NH3gas sensor

indium oxide

tin dioxide

Bushra A. Hasan

...Show More Authors

SummeryThis research includes description of the x-ray diffraction, morphology and sensing measurements of SnO2 doped In2O3 thin films synthesized by pulsed laser deposition method on glass and silicon wafer substrates. In2O3:SnO2 powders were obtained by mixing In2O3 with SnO2 in the desired ratio, and calcination the at temperature 1273 K for 5 hours. SnO2 doped In2O3 thin films with different ratios (0, 0.01, 0.03, 0.05, 0.07, and 0.09% wt.) were prepared using pulsed laser deposition method. The structural investigation using X-ray diffraction revealed that the main peaks were compatible with the slandered cards of indium oxide and indium tin oxide. Atomic force microscope declared reduction of grain size by increasing of tin oxide ratio. The research imply details of samples preparation, experimental methods and results which are given and explained. In2O3:SnO2/n-Si film NH3 sensors were fabricated. The doping ratio that gave the highest sensitivity for NH3 was 5% wt.SnO2. SnO2 doped In2O3 thin films was found sensitive against NH3 at the working temperature 473K. The results showed that the sensors based on I2O3:SnO2 films revealed very short response time(13.5s) to NH3 at 3% SnO2 ratio at473Kworking temperature.

View Publication

Publication Date

Sun Jan 01 2017

Journal Name

Catalysis Science & Technology

Mechanisms governing selective hydrogenation of acetylene over γ-Mo2N surfaces

Zainab N.

Mohammednoor

Hussein A.

Zhong-Tao

Bogdan Z.

...Show More Authors

We demonstrate that the selective hydrogenation of acetylene depends on energy profile of the partial and full hydrogenation routes and the thermodynamic stability of adsorbed C₂H₂ in comparison to C₂H₄.

View Publication

(27)

(26)

Publication Date

Fri Oct 01 2021

Journal Name

Journal Of Physics: Conference Series

Photodetector based on Rutile and Anatase TiO2 nanostructures/n-Si Heterojunction

S.A.

I.M.

I. M.

...Show More Authors

Photodetector based on Rutile and Anatase TiO₂ nanostructures/n-Si Heterojunction

Publication Date

Sat May 01 2021

Journal Name

Journal Of Physics: Conference Series

Theoretical Estimation of Electronic Flow Rate at Al-TiO2 Interfaces System

Hadi J M

Taif Saad Al

AbdulKareem A

Suad H

Mohsin A

Rajaa Faisel

...Show More Authors

AbstractThe mechanism of the electronic flow rate at Al-TiO2 interfaces system has been studied using the postulate of electronic quantum theory. The different structural of two materials lead to suggestion the continuum energy level for Al metal and TiO2 semiconductor. The electronic flow rate at the Al-TiO2 complex has affected by transition energy, coupling strength and contact at the interface of two materials. The flow charge rate at Al-TiO2 is increased by increasing coupling strength and decreasing transition energy.

View Publication

(5)

(4)

Publication Date

Mon Mar 01 2021

Journal Name

Journal Of Physics: Conference Series

Structural, surface morphology and optical properties of annealing treated Copper Phthalocyanine doped Fullerene (CuPc: C60) thin films

Ameer F.

Lamiaa K.

Noor S.

Zaid G.

...Show More Authors

AbstractThe doping process with materials related to carbon has become a newly emerged approach for achieving an improvement in different physical properties for the obtained doped films. Thin films of CuPc: C60 with doping ratio of (100:1) were spin-coated onto pre-cleaned glass substrates at room temperature. The prepared films were annealed at different temperatures of (373, 423 and 473) K. The structural studies, using a specific diffractometry of annealed and as deposited samples showed a polymorphism structure and dominated by CuPc with preferential orientation of the plane (100) of (2θ = 7) except at temperature of 423K which indicated a small peak around (2θ = 3 ... Show More

View Publication

(2)

(1)

Publication Date

Sun Nov 01 2020

Journal Name

Iop Conference Series: Materials Science And Engineering

Thermophysical properties of [EMIM][BF4] and [HMIM][PF6] imidazolium ionic liquids with MWCNTs

[EMIM][BF4]

[HMIM][PF6]

imidazolium ionic liquids

MWCNTs

Huda Majid

Basma A.

...Show More Authors

AbstractIn this study, several ionanofluids (INFs) were prepared in order to study their efficiency as a cooling medium at 25 °C. The two-step technique is used to prepare ionanofluid (INF) by dispersing multi-walled carbon nanotubes (MWCNTs) in two concentrations 0.5 and 1 wt% in ionic liquid (IL). Two types of ionic liquids (ILs) were used: hydrophilic represented by 1-ethyl-3-methylimidazolium tetrafluoroborate [EMIM][BF4] and hydrophobic represented by 1-hexyl-3-methylimidazolium hexafluorophosphate [HMIM][PF6]. The thermophysical properties of the prepared INFs including thermal conductivity (TC), density and viscosity were measured experimental ... Show More

View Publication Preview PDF

(6)

(4)

Publication Date

Mon Jan 01 2024

Journal Name

Open Engineering

Effect of nano-TiO2 on physical and rheological properties of asphalt cement

nanomaterial

TiO2

DSR

BBR

asphalt

Ahmed Mahir

Alaa H.

...Show More Authors

AbstractIn recent years, nano-modified asphalt has gained significant attraction from researchers in the design of asphalt pavement fields. The recently discovered Titanium dioxide nanoparticles (TiO2) are among the most exciting and promising nanomaterials. This study examines the effect of 1, 3, 5, and 7% of nano-TiO2 by weight of asphalt on some of its rheological and hardened properties. The experimental study included physical and rheological properties. The asphalt penetration, softening point, ductility, and rotational viscometer tests indicate that 5% nano-TiO2 is the ideal amount to be added to bitumen as a modifier. The ... Show More

View Publication Preview PDF

(14)

(13)

Publication Date

Tue Oct 01 2024

Journal Name

Journal Of Physics: Conference Series

An investigation into the implications of partial substitution of selenium with lead on the thermal properties for S60Se40-XPbX Chalcogenide Compound

Engineering controlled terms Electric arc furnaces

Glass manufacture

Lead alloys

Melting point

Selenium compounds Engineering uncontrolled terms 950° C

Chalcogenide compound

Melting point method

Partial substitution

Property

Quartz ampoule

Quartz tubes

Rapid cooling

Thermal

Weight ratios Engineering main heading Heat flux

Kareem

Mohamed

...Show More Authors

AbstractThis study includes the manufacture of four ternary alloys represented S60Se40-XPbX with weight ratios x = 0, 10, 20, and 30 by the melting point method. The components of each alloy were mixed separately, then placed in quartz ampoules and vacuumed out with a vacuum of roger that 10−4 Torr. The ampule was heated in two stages to avoid sudden dissipation and precipitation of selenium on the inner mass of the quartz tube. The ampoule was gradually heated and kept at 450°C for approximately 4 hours followed by 950°C for 10 hours.at a rate of 10 degrees Celsius, the temperature of the electric furnace ... Show More

View Publication Preview PDF

Publication Date

Sat May 01 2021

Journal Name

Journal Of Physics: Conference Series

Violet Laser Irradiation Effect on The Optical Properties of Cobalt oxide (CoO2) Thin Films deposited via Semi-Computerized Spraying System

Mushtaq Talib

Nathera

...Show More Authors

AbstractThe existing investigation explains the consequence of irradiation of violet laser on the optic properties of (CoO2) films. The film was equipped by the utilization of semi-computerized spray pyrolysis technique (SCSPT), it is the first time that this technique is used in the preparation and irradiation using a laser in this technique. From the XRD analysis, the crystalline existence with trigonal crystal system was when the received films were processed by continuous violet laser (405 nm) with power (1W) for different laser irradiation time using different number of times a laser scan (0, 6, 9, 12, 15 and 18 times) with total irradiation time(0,30,45,60,75,90 min ... Show More

View Publication Preview PDF

Publication Date

Fri Apr 01 2022

Journal Name

International Journal Of Nanoscience

Study of the Interaction Between Reduced Graphene Oxide and NO2Gas Molecules via Density Functional Theory (DFT)

Shaima K.

Mohammed T.

Mudar Ahmed

...Show More Authors

Electronic properties such as density of state, energy gap, HOMO (the highest occupied molecular orbital) level, LUMO (the lowest unoccupied molecular orbital) level and density of bonds, as well as spectroscopic properties like infrared (IR), Raman scattering, force constant, and reduced masses for coronene C₂₄, reduced graphene oxide (rGO) C₂₄O₅and interaction between C₂₄O₅and NO₂gas molecules were investigated. Density functional theory (DFT) with the exchange hybrid function B3LYP with 6-311G** basis sets through the Gaussian 09 W software program was used to do these calculations. Gaussian view 05 was em

View Publication

(8)

(1)

Publication Date

Sat May 01 2021

Journal Name

Journal Of Physics: Conference Series

Effect of Red Laser Irradiation on The Optical Properties of Cobalt oxide (CoO2) Thin Films deposited via Semi-Computerized Spraying Technique

Bahaa T.

Mushtaq T.

Mohammed Sh.

Nathera

...Show More Authors

AbstractThe existing investigation explains the consequence of irradiation of red laser on the optic properties of (CoO2) films. The film was equipped by the utilization of semi-computerized spray pyrolysis technique (SCSPT), it is the first time that this technique is used in the preparation and irradiation using a laser in this technique. From the XRD analysis, the crystalline existence with trigonal crystal system was when the received films were processed by continuous red laser (700 nm) with power (>1000mW)for different laser irradiation time using different number of times a laser scan (0, 6, 9, 12, 15 and 18 times) with total irradiation time(0,30,45,60,75,90 mi ... Show More

View Publication Preview PDF

1 2 ... 5 6 7 8 ... 1702 1703