Enhanced Sensing Properties by Dual-Gate Ion-Sensitive Field-Effect Transistor Using the Solution-Processed Al2O3Sensing Membranes

2013 ◽  
Vol 52 (6S) ◽  
pp. 06GK03 ◽  
Author(s):  
Tae-Eon Bae ◽  
Hyun-June Jang ◽  
Se-Won Lee ◽  
Won-Ju Cho
1971 ◽  
Vol 7 (22) ◽  
pp. 661 ◽  
Author(s):  
J.A. Turner ◽  
A.J. Waller ◽  
E. Kelly ◽  
D. Parker

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4213
Author(s):  
Seong-Kun Cho ◽  
Won-Ju Cho

In this study, a highly sensitive and selective sodium ion sensor consisting of a dual-gate (DG) structured silicon nanowire (SiNW) field-effect transistor (FET) as the transducer and a sodium-selective membrane extended gate (EG) as the sensing unit was developed. The SiNW channel DG FET was fabricated through the dry etching of the silicon-on-insulator substrate by using electrospun polyvinylpyrrolidone nanofibers as a template for the SiNW pattern transfer. The selectivity and sensitivity of sodium to other ions were verified by constructing a sodium ion sensor, wherein the EG was electrically connected to the SiNW channel DG FET with a sodium-selective membrane. An extremely high sensitivity of 1464.66 mV/dec was obtained for a NaCl solution. The low sensitivities of the SiNW channel FET-based sodium ion sensor to CaCl2, KCl, and pH buffer solutions demonstrated its excellent selectivity. The reliability and stability of the sodium ion sensor were verified under non-ideal behaviors by analyzing the hysteresis and drift. Therefore, the SiNW channel DG FET-based sodium ion sensor, which comprises a sodium-selective membrane EG, can be applied to accurately detect sodium ions in the analyses of sweat or blood.


2021 ◽  
Vol 99 ◽  
pp. 106331
Author(s):  
Jaeyong Kim ◽  
Dongil Ho ◽  
In Soo Kim ◽  
Myung-Gil Kim ◽  
Kang-Jun Baeg ◽  
...  

Nanoscale ◽  
2015 ◽  
Vol 7 (43) ◽  
pp. 18188-18197 ◽  
Author(s):  
Sebastian Heedt ◽  
Isabel Otto ◽  
Kamil Sladek ◽  
Hilde Hardtdegen ◽  
Jürgen Schubert ◽  
...  

The profound impact of InAs nanowire surface states on transistor functionality is quantified using a novel dual-gate FET evaluation method in conjunction with finite element method simulations of nanowire electrostatics.


2018 ◽  
Vol 55 ◽  
pp. 15-20 ◽  
Author(s):  
Yulong Wang ◽  
Haiquan Shan ◽  
Xize Sun ◽  
Lei Dong ◽  
Yaomiao Feng ◽  
...  

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