scholarly journals Inkjet-Printed Organic Field-Effect Transistor by Using Composite Semiconductor Material of Carbon Nanoparticles and Poly(3-Hexylthiophene)

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Chih-Ting Lin ◽  
Chun-Hao Hsu ◽  
Chang-Hung Lee ◽  
Wen-Jung Wu
Keyword(s):  
Organic Electronics ◽  
Inkjet Printing ◽  
Field Effect ◽  
Carrier Mobility ◽  
Field Effect Transistor ◽  
Low Cost ◽  
Semiconductor Material ◽  
Organic Field Effect Transistor ◽  
Organic Semiconductor Materials ◽  
Effect Transistor

Poly(3-hexylthiophene), P3HT, has been widely used in organic electronics as a semiconductor material. It suffers from the low carrier mobility characteristics. This limits P3HT to be employed in applications. Therefore, the blending semiconductor material, carbon nanoparticle (CNP), and P3HT, are developed and examined by inkjet-printing organic field-effect transistor technology in this work. The effective carrier mobility of fabricated OFETs can be enhanced by 8 folds with adding CNP and using O2plasma treatment. At the same time, the transconductance of fabricated OFETs is also raised by 5 folds. Based on the observations of SEM, XRD, and FTIR, these improvements are contributed to the local field induced by the formation of CNP/P3HT complexes. This observation presents an insight of the development in organic semiconductor materials. Moreover, this work also offers a low-cost and effective semiconductor material for inkjet-printing technology in the development of organic electronics.

Organic Field Effect Transistor using BaTiO3-Mn Doped and P(VDF-TrFE) for Non Volatile Memory Application

2008 ◽  
Vol 1071 ◽  
Author(s):  
Sambit Pattnaik ◽  
Ashish Garg ◽  
Monica Katiyar
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Vinylidene Fluoride ◽  
Low Cost ◽  
Phase Evolution ◽  
Memory Device ◽  
Organic Field Effect Transistor ◽  
Non Volatile Memory ◽  
Contact Devices ◽  
Effect Transistor

AbstractHere, we report fabrication of an organic field effect transistor that can be used as a memory device. We have evaluated inorganic ferroelectric insulator manganese doped barium titanate(BTO), organic poly(vinylidene fluoride trifluoroethylene) P(VDF-TrFE), and their composite. The inorganic and organic ferroelectrics were fabricated using low cost process of spin coating followed by annealing to enhance crystallinity. The ferroelectric phase evolution is assessed by X-ray diffraction, MIM structure is used to study polarization behaviour and leakage current. Finally, OFETs are fabricated using thermal evaporation of 75 nm of pentacene. Gold electrodes of 70 nm were evaporated for the top contact devices keeping W/L=40. The OFET devices, for BTO/P(VDF-TrFE) composite insulator, showed memory effect with shift in threshold voltage of 8.5 ± 1.5V.

scholarly journals Detection of 1,5-anhydroglucitol as a Biomarker for Diabetes Using an Organic Field-Effect Transistor-Based Biosensor

Technologies ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 77 ◽  
Author(s):  
Hiroyuki Furusawa ◽  
Yusuke Ichimura ◽  
Kuniaki Nagamine ◽  
Rei Shiwaku ◽  
Hiroyuki Matsui ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Low Voltage ◽  
Point Of Care ◽  
Low Cost ◽  
Transfer Characteristic ◽  
Organic Field Effect Transistor ◽  
Pyranose Oxidase ◽  
Effect Transistor ◽  
Inkjet Printing Technology

Sensor devices that can be fabricated on a flexible plastic film produced at a low cost using inkjet-printing technology are suitable for point-of-care applications. An organic field-effect transistor (OFET)-based biosensor can function as a potentiometric electrochemical sensor. To investigate the usefulness of an OFET-based biosensor, we demonstrated the detection of 1,5-anhydroglucitol (1,5-AG) and glucose, which are monosaccharides used as biomarkers of diabetes. An OFET-based biosensor combined with a Prussian blue (PB) electrode, modified with glucose oxidase (GOx) or pyranose oxidase (POx), was utilized for the detection of the monosaccharides. When the GOx- or POx-PB electrode was immersed in glucose solution at the determined concentration, shifts in the low-voltage direction of transfer characteristic curves of the OFET were observed to be dependent on the glucose concentrations in the range of 0–10 mM. For 1,5-AG, the curve shifts were observed only with the POx-PB electrode. Detection of glucose and 1,5-AG was achieved in a substrate-specific manner of the enzymes on the printed OFET-biosensor. Although further improvements are required in the detection concentration range, the plastic-filmOFET-biosensors will enable the measurement of not only diabetes biomarkers but also various other biomarkers.

scholarly journals Enhancement of organic field-effect transistor performance by incorporating functionalized double-walled carbon nanotubes

RSC Advances ◽  
2017 ◽  
Vol 7 (49) ◽  
pp. 30626-30631 ◽  
Author(s):  
Yingli Chu ◽  
Xiaohan Wu ◽  
Juan Du ◽  
Jia Huang
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Organic Electronics ◽  
Field Effect ◽  
Large Scale ◽  
Field Effect Transistor ◽  
Organic Field Effect Transistor ◽  
Effect Transistor ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Excellent electrical properties and large-scale fabrication are essential for extending the application of flexible organic electronics in practice.

Conduction Mechanism Based Model of Organic Field Effect Transistor Structure

2007 ◽  
Vol 555 ◽  
pp. 125-130
Author(s):  
Rajko M. Šašić ◽  
P.M. Lukić
Keyword(s):  
Field Effect ◽  
Carrier Mobility ◽  
Field Effect Transistor ◽  
Conduction Mechanism ◽  
Mobility Model ◽  
Transistor Structure ◽  
Organic Field Effect Transistor ◽  
Current Voltage ◽  
Polymer Semiconductor ◽  
Effect Transistor

Carriers mobility model of olygomer and polymer semiconductor based OFET (Organic Field Effect Transistor) structures is presented in this paper. Starting from the conduction mechanism in the mentioned organic materials, a carrier mobility dependence on temperature, electric field and trap density μ(T,E,NT) was investigated, inspiring directly the current-voltage I(V) model of OFET structures. Subsequent simulations were also performed and the obtained results compared with the data available in the literature.

Probing Molecular Packing at Engineered Interfaces in Organic Field Effect Transistor and Its Correlation with Charge Carrier Mobility

2015 ◽  
Vol 7 (19) ◽  
pp. 10169-10177 ◽  
Author(s):  
Priya Maheshwari ◽  
Saurabh Mukherjee ◽  
Debarati Bhattacharya ◽  
Shashwati Sen ◽  
Raj Bahadur Tokas ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Field Effect ◽  
Carrier Mobility ◽  
Field Effect Transistor ◽  
Charge Carrier Mobility ◽  
Molecular Packing ◽  
Organic Field Effect Transistor ◽  
Effect Transistor
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