Highly sensitive and multidimensional detection of NO2 using In2O3 thin films

2011 ◽  
Vol 160 (1) ◽  
pp. 251-259 ◽  
Author(s):  
Md. W.K. Nomani ◽  
D. Kersey ◽  
J. James ◽  
D. Diwan ◽  
T. Vogt ◽  
...  
Keyword(s):  
Thin Films ◽  
Highly Sensitive

scholarly journals Micrometric Growth Defects of DLC Thin Films

2019 ◽  
Vol 5 (4) ◽  
pp. 73 ◽  
Author(s):  
Thibault Maerten ◽  
Cédric Jaoul ◽  
Roland Oltra ◽  
Patrice Duport ◽  
Christophe Le Niniven ◽  
...  
Keyword(s):  
Thin Films ◽  
Defect Density ◽  
Electrochemical Techniques ◽  
Electrochemical Activation ◽  
Diamond Like Carbon ◽  
Growth Defects ◽  
Chemical Inertness ◽  
Highly Sensitive ◽  
Deposition Processes

Defects in diamond-like carbon coatings deposited on corrosion sensitive 100Cr6 steel have been studied. Diamond-like carbon (DLC) thin films are promising for corrosion protection due to chemical inertness and low electrical conductivity. Nevertheless, the performance of these coating is highly sensitive to the presence of uncoated areas. These defects represent the primary way of substrate degradation in aggressive environments. An in situ optical microscopy coupled to an electrochemical activation was developed to reveal micrometric growth defects and observe that they were at the origin of corrosion. A square wave voltammetry was applied to increase the sensitivity of electrochemical techniques based on the detection of the dissolution of the bare metal surface triggered by the presence of uncoated spots. This method can be utilized to quantify defect density arising from vapor deposition processes.

A Novel and Highly Sensitive Gas Flow Sensor Using a Hot Spot on $\bf YBa_{2}Cu_{3}O_{7-{\ninmbi \delta}}$ Thin Films

1995 ◽  
Vol 34 (Part 2, No. 10A) ◽  
pp. L1311-L1313 ◽  
Author(s):  
Kei Kikuchi ◽  
Motoi Kanzaki ◽  
Tokudai Neda ◽  
Takehiko Kondo ◽  
Masasuke Takata
Keyword(s):  
Thin Films ◽  
Gas Flow ◽  
Hot Spot ◽  
Flow Sensor ◽  
Highly Sensitive

Highly Sensitive Temperature Sensor: Ligand‐Treated Ag Nanocrystal Thin Films on PDMS with Thermal Expansion Strategy

2019 ◽  
Vol 29 (32) ◽  
pp. 1903047 ◽  
Author(s):  
Junsung Bang ◽  
Woo Seok Lee ◽  
Byeonghak Park ◽  
Hyungmok Joh ◽  
Ho Kun Woo ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Expansion ◽  
Temperature Sensor ◽  
Expansion Strategy ◽  
Highly Sensitive

scholarly journals Gold nanoparticle thin films fabricated by electrophoretic deposition method for highly sensitive SERS application

2012 ◽  
Vol 7 (1) ◽  
pp. 613 ◽  
Author(s):  
Sheng-Qing Zhu ◽  
Tong Zhang ◽  
Xin-Li Guo ◽  
Qi-Long Wang ◽  
Xuefeng Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Gold Nanoparticle ◽  
Electrophoretic Deposition ◽  
Deposition Method ◽  
Highly Sensitive

scholarly journals Highly Sensitive InOxOzone Sensing Films on Flexible Substrates

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
G. Kiriakidis ◽  
K. Moschovis ◽  
I. Kortidis ◽  
R. Skarvelakis
Keyword(s):  
Thin Films ◽  
Gas Sensors ◽  
Air Conditioning ◽  
Room Temperature ◽  
Growth Conditions ◽  
Flexible Substrates ◽  
Dc Magnetron Sputtering ◽  
Surface Cracking ◽  
Highly Sensitive ◽  
Extended Surface

InOxthin films with a thickness of the order of 100 nm were grown by dc magnetron sputtering on glass, Si and flexible (PET) substrates. The electrical conductivity ofInOxthin films exhibited a change of two orders of magnitude during photoreduction with ultraviolet light and subsequent oxidation in ozone concentrations from 2370 to 15 ppb, at room temperature. Optical transparency of over 85% for all substrates was maintained. Film structural and ozone sensing properties were analyzed. Surface morphology investigations carried out by SEM for films on PET substrates showed extended surface cracking for bending angles beyond40∘. Optimization of growth conditions has led to films with extremely low detection levels for ozone down to 15 ppb at room temperature, demonstrating the wide prospective of utilizing these metal oxides as gas sensors on flexible substrates for a variety of automotive and air-conditioning applications.

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