scholarly journals Investigation on V2O5 Thin Films for Field Effect Transistor Applications

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
S. K. Suresh Babu ◽  
D. Jackuline Moni ◽  
D. Gracia ◽  
Amsalu Gosu Adigo

V2O5 thin films are analyzed for the substitution of SiO2 to reduce the leakage current in devices when SiO2 becomes ultrathin in submicron technology. Vanadium pentoxide (V2O5) has a high-k dielectric constant of 25 and can be replaced as a gate oxide in the field-effect transistor. V2O5 is deposited using pulsed laser deposition (PLD) in the oxygen (O2) environment at room temperature and characterized. The films surface morphology has been examined by scanning electron microscopy. The capacitance, dielectric constant, and dielectric loss are analyzed for fabricated metal oxide semiconductor (MOS) structure using Solartron SI-1260 impedance analyzer. The transfer characteristic of the fabricated device is analyzed using National Instruments NI-PXI 4110. The ION/IOFF ratio of 106 and threshold voltage (VTH) of 0.6 V is obtained.

2004 ◽  
Vol 85 (7) ◽  
pp. 1286-1288 ◽  
Author(s):  
Se Jong Rhee ◽  
Chang Yong Kang ◽  
Chang Seok Kang ◽  
Rino Choi ◽  
Chang Hwan Choi ◽  
...  

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Muhammad AlHadi Zulkefle ◽  
Rohanieza Abdul Rahman ◽  
Khairul Aimi Yusof ◽  
Wan Fazlida Hanim Abdullah ◽  
Mohamad Rusop ◽  
...  

Titanium dioxide (TiO2) thin films were applied as the sensing membrane of an extended-gate field-effect transistor (EGFET) pH sensor. TiO2thin films were deposited by spin coating method and the influences of the spin speed and spin duration on the pH sensing behavior of TiO2thin films were investigated. The spin coated TiO2thin films were connected to commercial metal-oxide-semiconductor field-effect transistor (MOSFET) to form the extended gates and the MOSFET was integrated in a readout interfacing circuit to complete the EGFET pH sensor system. For the spin speed parameter investigation, the highest sensitivity was obtained for the sample spun at 3000 rpm at a fixed spinning time of 60 s, which was 60.3 mV/pH. The sensitivity was further improved to achieve 68 mV/pH with good linearity of 0.9943 when the spin time was 75 s at the speed of 3000 rpm.


2010 ◽  
Vol 96 (12) ◽  
pp. 122104 ◽  
Author(s):  
Costin Anghel ◽  
Prathyusha Chilagani ◽  
Amara Amara ◽  
Andrei Vladimirescu

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