A critical review of AlGaN/GaN-heterostructure based Schottky diode/HEMT hydrogen (H2) sensors for aerospace and industrial applications

Measurement ◽  
2021 ◽  
Vol 186 ◽  
pp. 110100
Author(s):  
J. Ajayan ◽  
D. Nirmal ◽  
R. Ramesh ◽  
Sandip Bhattacharya ◽  
Shubham Tayal ◽  
...  
2021 ◽  
Vol 55 (1-2) ◽  
pp. 1-12
Author(s):  
TSHWAFO ELIAS MOTAUNG

"This review presents recent research on cellulosic materials and its latest uses, as well as scientific possibilities for more applications. Cellulose continues to display its advantages over synthetic fibers and its potential to replace fossilbased materials, which are known to harm ecosystems. Common attractive applications of cellulose include packaging, healthcare materials, electronics and printing. Most applications seem to rotate around the equilibrium of hydrophilicity, its mechanical properties and optical properties. Details on industrial applications, knowledge gaps and green innovations in cellulose conductivity, as well as limitations of its thermal degradation, are thoroughly covered. Most innovations are motivated by industrial needs, because renewability and inexpensiveness are the latest additional values to most industries. All common and innovative pretreatments are well summarized in this review. Furthermore, the paper provides interesting details on cellulose polymer composites, their applications and some recommendations for further research."


Sensors ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 2384 ◽  
Author(s):  
Florin Draghici ◽  
Gheorghe Brezeanu ◽  
Gheorghe Pristavu ◽  
Razvan Pascu ◽  
Marian Badila ◽  
...  

This paper presents a high-temperature probe suitable for operating in harsh industrial applications as a reliable alternative to low-lifespan conventional solutions, such as thermocouples. The temperature sensing element is a Schottky diode fabricated on 4H-SiC wafers, with Ni as the Schottky metal, which allows operation at temperatures up to 400 °C, with sensitivities over 2 mV/°C and excellent linearity (R2 > 99.99%). The temperature probe also includes dedicated circuitry for signal acquisition and conversion to the 4 mA–20 mA industrial standard output signal. This read-out circuit can be calibrated for linear response over a tunable temperature detection range. The entire system is designed for full electrical and mechanical compatibility with existing conventional probe casings, allowing for seamless implementation in a factory’s sensor network. Such sensors are tested alongside standard thermocouples, with matching temperature monitoring results, over several months, in real working conditions (a cement factory), up to 400 °C.


2005 ◽  
Vol 244 (1-4) ◽  
pp. 273-276 ◽  
Author(s):  
Kazushi Matsuo ◽  
Noboru Negoro ◽  
Junji Kotani ◽  
Tamotsu Hashizume ◽  
Hideki Hasegawa

2011 ◽  
Vol 109 (7) ◽  
pp. 074512 ◽  
Author(s):  
Yuanjie Lv ◽  
Zhaojun Lin ◽  
Timothy D. Corrigan ◽  
Jianzhi Zhao ◽  
Zhifang Cao ◽  
...  

2018 ◽  
Vol 7 (7) ◽  
pp. Q3020-Q3024 ◽  
Author(s):  
Sunwoo Jung ◽  
Kwang Hyeon Baik ◽  
Fan Ren ◽  
S. J. Pearton ◽  
Soohwan Jang

2020 ◽  
Vol 317 ◽  
pp. 128234 ◽  
Author(s):  
Kwang Hyeon Baik ◽  
Sunwoo Jung ◽  
Chu-Young Cho ◽  
Kyung-Ho Park ◽  
Fan Ren ◽  
...  

2015 ◽  
Author(s):  
Subhashis Das ◽  
S. Majumdar ◽  
R. Kumar ◽  
A. Chakraborty ◽  
A. Bag ◽  
...  

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