Highly sensitive CO2 sensor based on microrods-like La2O3 thin film electrode

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 106074-106080 ◽  
Author(s):  
A. A. Yadav ◽  
A. C. Lokhande ◽  
J. H. Kim ◽  
C. D. Lokhande
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Gas Sensor ◽  
Film Electrode ◽  
Thin Film Electrode ◽  
Sensor Application ◽  
Co2 Sensor ◽  
Highly Sensitive

The microrod-like La2O3 thin films are successfully synthesized by chemical bath method for highly sensitive CO2 gas sensor application.

Fabrication of Al–TiO2 Thin Film Electrode by Spray Pyrolysis Technique for Urea Sensing

2020 ◽  
Vol 20 (5) ◽  
pp. 2887-2892 ◽  
Author(s):  
A. Mathi Vathani ◽  
S. Dhanalakshmi ◽  
N. Jeyakumaran ◽  
N. Prithivikumaran
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Spray Pyrolysis ◽  
Kidney Diseases ◽  
Spray Pyrolysis Technique ◽  
Anatase Phase ◽  
Visible Region ◽  
Film Electrode ◽  
Thin Film Electrode ◽  
Vis Spectroscopy

A simple cost effective Al–TiO2 thin film electrode was fabricated for urea sensing. Urea is the key end product of nitrogen metabolism in humans. Increased level of urea leads to loss of kidney function. Thus determination of urea is important in analysis of kidney diseases. Al–TiO2 thin films were deposited with different concentration of Al by Spray pyrolysis technique. The X-ray diffraction (XRD) pattern reveals the anatase phase of the Al–TiO2 thin films with tetragonal structure. A shift is observed in the XRD peak position compared to as prepared TiO2 thin film indicates the incorporation of Al ions into Ti ions. The UV-Vis spectroscopy study shows that the absorption increases and the absorption peak shifts towards the visible region for Al–TiO2 thin films compared with that of the as prepared TiO2 thin film. The optical band gap values changes with the change in the Al concentration in TiO2 thin films. The electrochemical analysis for optimized Al–TiO2 thin film electrode was carried out by cyclic voltammetry (CV) method. CV studies of Al–TiO2 thin film electrode show the good stability and linearity which is essential to fabricate biosensor. The sensor response to urea is linear with correlation coefficient of 0.944 and the sensitivity is 3.17 μA mM−1 cm−2.

BaTiO3 THIN FILM BY CSD FROM MOLECULAR-DESIGNED PRECURSOR SOLUTION

2012 ◽  
Vol 05 (02) ◽  
pp. 1260007 ◽  
Author(s):  
MASAOMI NAGASAKA ◽  
DAI IWASAKI ◽  
NAONORI SAKAMOTO ◽  
NAOKI WAKIYA ◽  
HISAO SUZUKI
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electrical Properties ◽  
Molecular Design ◽  
Precursor Solution ◽  
Cost Effective ◽  
Partial Hydrolysis ◽  
Film Electrode ◽  
Thin Film Electrode ◽  
Hydrolysis Method

BaTiO3 (BT) thin films were deposited by the cost effective method of a chemical solution deposition (CSD). 0.3 M BT precursor solution was prepared by the partial hydrolysis method. Partially hydrolyzed Ti -alkoxide and Ba precursor solution was reacted to prepare the highly polymerized BT precursor solution. BT precursor solution was spin-coated on a Pt/Ti/SiO2/Si substrate with (100)-oriented LaNiO 3 (LNO) thin film electrode. In addition, effect of the pre-annealing at 600°C in O2 atmosphere was elucidated by measuring the electrical properties of the resulting BT thin films deposited by the different annealing process. As a result, molecular-design of the BT precursor and a LNO thin film electrode were effective to enhance the electrical properties of the resultant BT thin films, as well as 600°C pre-annealing.

Nitrite ion sensing properties of ZnTiO3–TiO2 composite thin films deposited from a zinc–titanium molecular complex

2015 ◽  
Vol 39 (9) ◽  
pp. 7442-7452 ◽  
Author(s):  
Muhammad Ali Ehsan ◽  
Hamid Khaledi ◽  
Alagarsamy Pandikumar ◽  
Perumal Rameshkumar ◽  
Nay Ming Huang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Molecular Complex ◽  
Composite Thin Film ◽  
Film Electrode ◽  
Nitrite Ion ◽  
Thin Film Electrode ◽  
Composite Thin Films ◽  
Sensing Properties ◽  
Ion Sensing

ZnTiO3–TiO2 composite thin film electrode has been fabricated by AACVD method and tested for electrochemical nitrite ion detection.

scholarly journals Fabrication of Pt-O Thin Film Electrode for an HF-gas Sensor.

1992 ◽  
Vol 43 (8) ◽  
pp. 785-788 ◽  
Author(s):  
Nobuo NAKANO ◽  
Toru ISHIJI ◽  
Akio OKAMOTO ◽  
Yoshihiko SUZUKI ◽  
Soichi OGAWA
Keyword(s):  
Thin Film ◽  
Gas Sensor ◽  
Film Electrode ◽  
Thin Film Electrode

scholarly journals A Comparison between Silver Nanosquare Arrays and Silver Thin-Films as a Blood Cancer Prognosis Monitoring Electrode Design Using Optical and Electrochemical Characterization

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3108
Author(s):  
Nasori Nasori ◽  
Ulya Farahdina ◽  
Vinda Zakiyatuz Zulfa ◽  
Miftakhul Firdhaus ◽  
Ihwanul Aziz ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Serum Albumin ◽  
Spin Coating ◽  
Absorption Peak ◽  
Cancer Prognosis ◽  
Film Electrode ◽  
Thin Film Electrode ◽  
Blood Cancer ◽  
Dc Sputtering

The development of silver (Ag) thin films and the fabrication of Ag nanosquare arrays with the use of an anodic aluminum oxide (AAO) template and leaf extracts were successfully carried out using the DC sputtering and spin coating deposition methods. Ag thin films and Ag nanosquare arrays are developed to monitor cancer prognosis due to the correlation between serum albumin levels and prognostic factors, as well as the binding of serum albumin to the surface of these electrodes. Nanosquare structures were fabricated using AAO templates with varying diameters and a gap distance between adjacent unit cells of 100 nm. The nanosquare array with a diameter of 250 nm and irradiated with electromagnetic waves with a wavelength of around 800 nm possessed the greatest electric field distribution compared to the other variations of diameters and wavelengths. The results of the absorption measurement and simulation showed a greater shift in absorption peak wavelength when carried out using the Ag nanosquare array. The absorption peak wavelengths of the Ag nanosquare array in normal blood and blood with cancer lymphocytes were 700–774 nm and 800–850 nm, respectively. The electrochemical test showed that the sensitivity values of the Ag thin-film electrode deposited using DC sputtering, the Ag thin-film electrode deposited using spin coating, and the Ag nanosquare array in detecting PBS+BSA concentration in the cyclic voltammetry (CV) experiment were 1.308 µA mM−1cm−2, 0.022 µA mM−1cm−2, and 39.917 µA mM−1cm−2, respectively. Meanwhile, the sensitivity values of the Ag thin film and the Ag nanosquare array in detecting the PBS+BSA concentration in the electrochemical impedance spectroscopy (EIS) measurement were 6593.76 Ohm·cm2/mM and 69,000 Ohm·cm2/mM, respectively. Thus, our analysis of the optical and electrochemical characteristics of Ag thin films and Ag nanosquare arrays showed that both can be used as an alternative biomedical technology to monitor the prognosis of blood cancer based on the concentration of serum albumin in blood.

Ternary CuO:SnO2:ZnO (1:1:1) composite thin film for room temperature gas sensor application

Optik ◽  
2021 ◽  
Vol 234 ◽  
pp. 166615
Author(s):  
S.R. Cynthia ◽  
R. Sivakumar ◽  
C. Sanjeeviraja
Keyword(s):  
Thin Film ◽  
Gas Sensor ◽  
Room Temperature ◽  
Composite Thin Film ◽  
Sensor Application

Potentiodynamic deposition of composition influenced Co1−xNix LDHs thin film electrode for redox supercapacitors

2013 ◽  
Vol 38 (10) ◽  
pp. 4046-4053 ◽  
Author(s):  
S.B. Kulkarni ◽  
A.D. Jagadale ◽  
V.S. Kumbhar ◽  
R.N. Bulakhe ◽  
S.S. Joshi ◽  
...  
Keyword(s):  
Thin Film ◽  
Film Electrode ◽  
Thin Film Electrode
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