Abstract | ||
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The current paper reports on a sonochemical synthesis method for manufacturing nanostructured (typical grain size of 50 nm) SrTi0.6Fe0.4O2.8 (Sono-STFO40) powder. This powder is characterized using X ray-diffraction (XRD), Mossbauer spectroscopy and Scanning Electron Microscopy (SEM), and results are compared with commercially available SrTi0.4Fe0.6O2.8 (STFO60) powder. In order to manufacture resistive oxygen sensors, both Sono-STFO40 and STFO60 are deposited, by dip-pen nanolithography (DPN) method, on an SOI (Silicon-on-Insulator) micro-hotplate, employing a tungsten heater embedded within a dielectric membrane. Oxygen detection tests are performed in both dry (RH = 0%) and humid (RH = 60%) nitrogen atmosphere, varying oxygen concentrations between 1% and 16% (v/v), at a constant heater temperature of 650 degrees C. The oxygen sensor, based on the Sono-STFO40 sensing layer, shows good sensitivity, low power consumption (80 mW), and short response time (25 s). These performance are comparable to those exhibited by state-of-the-art O-2 sensors based on STFO60, thus proving Sono-STFO40 to be a material suitable for oxygen detection in harsh environments. |
Year | DOI | Venue |
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2015 | 10.3390/s150717495 | SENSORS |
Keywords | Field | DocType |
sonochemistry,STFO,oxygen sensing,silicon-on-Insulator,CMOS-compatible,dip-pen nanolithography,harsh environment | Analytical chemistry,Oxygen,Resistive touchscreen,Oxygen sensor,Tungsten,Scanning electron microscope,Chemistry,Electronic engineering,Grain size,Nanolithography,Sonochemistry | Journal |
Volume | Issue | Citations |
15 | 7.0 | 1 |
PageRank | References | Authors |
0.35 | 1 | 11 |
Name | Order | Citations | PageRank |
---|---|---|---|
alisa stratulat | 1 | 1 | 0.35 |
bogdancatalin serban | 2 | 1 | 0.35 |
Andrea De Luca | 3 | 9 | 3.38 |
viorel avramescu | 4 | 1 | 0.35 |
cornel cobianu | 5 | 1 | 0.35 |
m brezeanu | 6 | 1 | 0.35 |
Octavian Buiu | 7 | 20 | 6.49 |
lucian diamandescu | 8 | 1 | 0.35 |
marcel feder | 9 | 1 | 0.35 |
Syed Zeeshan Ali | 10 | 2 | 1.75 |
F. Udrea | 11 | 6 | 6.19 |