UV-Ozone Interfacial Modification in Organic Transistors for High-Sensitivity NO2 Detection

2017 ◽  
Vol 29 (31) ◽  
pp. 1701706 ◽  
Author(s):  
Wei Huang ◽  
Xinming Zhuang ◽  
Ferdinand S. Melkonyan ◽  
Binghao Wang ◽  
Li Zeng ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Organic Transistors ◽  
Interfacial Modification ◽  
Uv Ozone ◽  
No2 Detection

Effects of UV/ozone treatment of a polymer dielectric surface on the properties of pentacene thin films for organic transistors

2008 ◽  
Vol 104 (1) ◽  
pp. 013715 ◽  
Author(s):  
Seung Jin Han ◽  
Jae-Hoon Kim ◽  
Jeong Won Kim ◽  
Chang-Ki Min ◽  
Sa-Hwan Hong ◽  
...  
Keyword(s):  
Thin Films ◽  
Dielectric Surface ◽  
Ozone Treatment ◽  
Organic Transistors ◽  
Polymer Dielectric ◽  
Uv Ozone

Tetrahydroxyphenyl porphyrin membrane: a high-sensitivity optical waveguide gas sensor for NO2 detection

2020 ◽  
Vol 31 (5) ◽  
pp. 055105 ◽  
Author(s):  
Buayishamu Kutilike ◽  
Nuerguli Kari ◽  
Yuan Zhang ◽  
Patima Nizamidin ◽  
Abliz Yimit
Keyword(s):  
Gas Sensor ◽  
Optical Waveguide ◽  
High Sensitivity ◽  
No2 Detection

scholarly journals Study of the correlation between sensing performance and surface morphology of inkjet-printed aqueous graphene-based chemiresistors for NO2 detection

2017 ◽  
Vol 8 ◽  
pp. 1023-1031 ◽  
Author(s):  
F Villani ◽  
C Schiattarella ◽  
T Polichetti ◽  
R Di Capua ◽  
F Loffredo ◽  
...  
Keyword(s):  
Low Cost ◽  
High Sensitivity ◽  
High Specific Surface Area ◽  
Force Microscopy ◽  
Atomic Force ◽  
Microscopy Analysis ◽  
Controlled Deposition ◽  
Chemiresistive Gas Sensors ◽  
Relative Conductance ◽  
No2 Detection

The extremely high sensitivity to the external environment and the high specific surface area, as well as the absence of bulk phenomena that could interfere with the response signal, make graphene highly attractive for the applications in the field of sensing. Among the various methods for producing graphene over large areas, liquid phase exfoliation (LPE) appears to be very promising, especially if combined with inkjet printing (IJP), which offers several advantages, including the selective and controlled deposition of small ink volumes and the versatility of the exploitable inks and substrates. Herein we present a feasibility study of chemiresistive gas sensors inkjet-printed onto paper substrates, in which a LPE graphene suspension dispersed in a water/isopropanol (H2O/IPA) mixture is used as sensing ink. The device performances, in terms of relative conductance variations, upon exposure to NO2 at standard ambient temperature and pressure, are analysed. In addition, we examine the effect of the substrate morphology and, more specifically, of the ink/substrate interaction on the device performances, by comparing the response of different chemiresistors fabricated by dispensing the same suspension also onto Al2O3 and Si/SiO2 substrates and carrying out a supportive atomic force microscopy analysis. The results prove the possibility to produce sensor devices by means of a wholly environmentally friendly, low-cost process that meets the requests coming from the increasing field of paper-based electronics and paving the way towards a flexible, green-by-design mass production.

scholarly journals Low-Voltage, Dual-Gate Organic Transistors with High Sensitivity and Stability toward Electrostatic Biosensing

2020 ◽  
Vol 12 (36) ◽  
pp. 40581-40589 ◽  
Author(s):  
Mark Nikolka ◽  
Dimitrios Simatos ◽  
Amir Foudeh ◽  
Raphael Pfattner ◽  
Iain McCulloch ◽  
...  
Keyword(s):  
Low Voltage ◽  
High Sensitivity ◽  
Organic Transistors ◽  
Dual Gate
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