scholarly journals Study the surface morphology and the chemical composition of NiPc:NiO nanocomposite thin films

2021 ◽  
Vol 2114 (1) ◽  
pp. 012092
Author(s):  
A A Qassim ◽  
A N Sadeq
Keyword(s):  
Thin Films ◽  
Chemical Composition ◽  
Nickel Oxide ◽  
Spin Coating ◽  
Room Temperature ◽  
Physical Adsorption ◽  
Nio Nanoparticles ◽  
Nickel Phthalocyanine ◽  
Nanocomposite Thin Films ◽  
Inorganic Thin Films

Abstract The synthesis of organic and inorganic thin films based on nickel phthalocyanine (NiPc) and nickel oxide NiO nanoparticles. the thin films prepared by spin coating technic. The volume of the solution dropped on each slide is 50 micro liter at room temperature. Nanocomposites thin films NiPc:NiO with different percentage 1:0 75:25, 50:50, 25:75 and 0:1 are analysed using FESEM and EDX. The study of morphology and chemical composition of the synthesized thin films revealed the formation of NiPc in the form of rods and nickel oxide similar to spherical clusters. The EDX spectra revealed the appearance of oxygen in a high percentage in some samples, perhaps as a result of the chemical and physical adsorption. This is the first study on the combination and description of NiPc:NiO nanocomposite.

scholarly journals A tunable volatile organic compound sensor by using PtOx/GQDs/TiO2 nanocomposite thin films at room temperature under visible-light activation

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39859-39868 ◽  
Author(s):  
Shaofeng Shao ◽  
Yunyun Chen ◽  
Shenbei Huang ◽  
Fan Jiang ◽  
Yunfei Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Visible Light ◽  
Gas Sensors ◽  
Room Temperature ◽  
Light Activation ◽  
Nanocomposite Thin Film ◽  
Nanocomposite Thin Films ◽  
Volatile Organic ◽  
Visible Light Activation

Pt/GQDs/TiO2 nanocomposite thin film-based gas sensors show tunable VOC sensing behaviour at room temperature under visible-light activation.

Synthesis and Characterizations of Strontium Substituted Hydroxyapatite Thin Films

2010 ◽  
Vol 93-94 ◽  
pp. 231-234
Author(s):  
B. Hongthong ◽  
Satreerat K. Hodak ◽  
Sukkaneste Tungasmita
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Chemical Composition ◽  
Spin Coating ◽  
Phase Structure ◽  
Sol Gel ◽  
Cross Linking ◽  
X Ray Diffraction ◽  
X Ray ◽  
Sol Gel Process

Strontium substituted hydroxyapatite(SrHAp) were fabricated both in the form of powder as reference and thin film by using inorganic precursor reaction. The sol-gel process has been used for the deposition of SrHAp layer on stainless steal 316L substrate by spin coating technique, after that the films were annealed in air at various temperatures. The chemical composition of SrHAp is represented (SrxCa1-x)5(PO4)3OH, where x is equal to 0, 0.5 and 1.0. Investigations of the phase structure of SrHAp were carried out by using X-ray diffraction technique (XRD). The results showed that strontium is incorporated into hydroxyapatite where its substitution for calcium increases in the lattice parameters, and Sr3(PO4)2 can be detected at 900°C. The SEM micrographs showed that SrHAp films exhibited porous structure before develop to a cross-linking structure.

scholarly journals Very high commutation quality factor and dielectric tunability in nanocomposite SrTiO3 thin films with Tc enhanced to >300 °C

Nanoscale ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 3460-3468 ◽  
Author(s):  
Abhijeet L. Sangle ◽  
Oon Jew Lee ◽  
Ahmed Kursumovic ◽  
Wenrui Zhang ◽  
Aiping Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Quality Factor ◽  
Room Temperature ◽  
Dielectric Tunability ◽  
Nanocomposite Thin Films ◽  
Very High

We report on nanoengineered SrTiO3–Sm2O3 nanocomposite thin films with the highest reported values of commutation quality factor (CQF or K-factor) of >2800 in SrTiO3 at room temperature.

FABRICATION OF QCM TYPE SMOTHER DETECTION SENSOR BY PLASMA POLYMERIZING SnOx ORGANIC-LIKE FILMS AND SPIN COATING WITH POLY ETHYLENE GLYCOL

2012 ◽  
Vol 24 (02) ◽  
pp. 179-183
Author(s):  
Ko-Shao Chen ◽  
Shu-Chuan Liao ◽  
Hsin-Ming Wu ◽  
Yu-Chia Tsao ◽  
Hong-Ru Lin
Keyword(s):  
Thin Films ◽  
Ethylene Glycol ◽  
Spin Coating ◽  
Room Temperature ◽  
Plasma Deposition ◽  
Post Treatment ◽  
Detection Sensitivity ◽  
Poly Ethylene Glycol ◽  
Frequency Drop ◽  
Poly Ethylene

Quartz crystal microbalances (QCM) are transducers for chemical and biochemical sensing. The oscillation frequency of QCM is affected by the adsorbed mass on the surface. In this work, a new room temperature type gas sensor device fabricated by organically hybridized plasma deposition of tetramethyltin (TMT) and oxygen. Post treatment with poly ethylene glycol (PEG) was developed to detect the ambient environmental smother, and the responses of the fabricated sensor to smother detection were investigated. SnO x C y thin films on the sensor electrodes were obtained by plasma deposition from TMT and O 2 gas mixtures at room temperature. A spin coating post treatment on the SnO x C y thin films turns into hydrophilic property. The response of the QCM sensor to the smother detection shows a frequency drop during the burning of candle and has good detection sensitivity with Δf equal to 2400 Hz. Repeated smother testing with the QCM type smother detection sensor also indicates the stability of the fabricated sensor.

Electrical conductivity studies of mixed phthalocyanine thin films

Open Physics ◽  
2005 ◽  
Vol 3 (1) ◽  
Author(s):  
Abraham Varghese ◽  
C. Menon
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Room Temperature ◽  
Optical Band Gap ◽  
Thermal Evaporation ◽  
Copper Phthalocyanine ◽  
Thermal Evaporation Technique ◽  
Nickel Phthalocyanine ◽  
Mixed Films ◽  
Evaporation Technique

AbstractThin films of mixed of Copper Phthalocyanine (CuPc) and Nickel Phthalocyanine (NiPc) are deposited onto a pure glass substrate by a simultaneous thermal evaporation technique at room temperature. The material D.C. electrical conductivity of films at room temperature and also films annealed at 523 K has been investigated. The optical absorption and band gaps of the films are also measured. The results show that the electrical resistance is lower for the mixed films compared with the pure samples and also the optical band gap decreases for the mixed samples compared to the pure samples.

Effect of TiO2 Nanofiller on Nanocomposited PMMA/TiO2 Thin Film

2012 ◽  
Vol 576 ◽  
pp. 417-420 ◽  
Author(s):  
N.N. Hafizah ◽  
Ismail Lyly Nyl ◽  
M.Z. Musa ◽  
Mohamad Rusop Mahmood
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Thin Films ◽  
Scanning Electron Microscopy ◽  
Spin Coating ◽  
Weight Percentage ◽  
Force Microscopy ◽  
Atomic Force ◽  
Nanocomposite Thin Films ◽  
Scanning Electron

In this study, PMMA/TiO2 nanocomposite thin films were prepared by using sonication spin coating technique. The PMMA and TiO2 solution were mixed together and sonicated for 1h to confirm the homogeneity of the sample. The thin films obtained were then measured using atomic force microscopy (AFM), field emission scanning electron microscopy (FESEM) and Fourier transform infrared (FTIR). FESEM micrograph reveals that the uniformity increases with the increase of TiO2 weight percentage.

Structure and Morphology of Thin Films Deposited by Pulsed Laser Deposition Technique

2012 ◽  
Vol 186 ◽  
pp. 160-163
Author(s):  
Agnieszka Radziszewska
Keyword(s):  
Thin Films ◽  
Chemical Composition ◽  
Pulsed Laser Deposition ◽  
Multilayer Structure ◽  
Room Temperature ◽  
Pulsed Laser ◽  
Nanocrystalline Structure ◽  
Laser Wavelength ◽  
Laser Deposition ◽  
Structure And Morphology

The paper presented the structure (TEM), morphology and chemical composition (EDS) of the -Al-Mg thin films and Al-Mg-Ni multilayer obtained by pulsed laser deposition (PLD). This films were deposited using Nd:YAG laser. The different process parameters were applied. The Al-Mg film was obtained by application of the laser wavelength (=355 nm) and substrate temperature (Ts) 200 oC. Whereas the Al-Mg-Ni multilayer was produced at lower laser wavelength (=266 nm) and at room temperature of the substrate. For preparation of both films the same laser fluence (q=4.7 J/cm2) was used. The Al-Mg possessed nanocrystalline structure with the areas where only columnar Al crystals occurred. EDS of this thin film exhibited that in the nanocrystalline areas the chemical composition corresponded to the target content of Al and Mg. While Al-Mg-Ni multilayer composed of six layers. In this case Al-Mg layers were thinner then Ni layers. In the multilayer structure the fcc Al0.65Mg0.35 and fcc Ni phases was revealed.

Sign in / Sign up

Export Citation Format

Share Document