A Flexible Ultrasensitive IgG-Modified rGO-Based FET Biosensor Fabricated by Aerosol Jet Printing

2015 ◽  
Vol 748 ◽  
pp. 157-161 ◽  
Author(s):  
Wei Yu ◽  
Pei Jie Cai ◽  
Rui Liu ◽  
Fang Ping Shen ◽  
Ting Zhang
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Drain Current ◽  
Flexible Sensors ◽  
Flexible Polymer ◽  
Low Concentrations ◽  
Rabbit Igg ◽  
Jet Printing ◽  
Aerosol Jet Printing ◽  
Flexible Polymer Substrate

High-performance biosensors are the key elements for rapid and real-time detection of specific biomolecules. Herein, an ultrasensitive FET biosensor on a flexible polymer substrate was reported, and the aerosol jet printing (AJP) method offers a unique way for low-cost mass manufacturing of the flexible sensors. The stable PBA functionalized rGO layer and the goat-anti-rabbit IgG layer on the rGO were both printed by AJP method between the source/drain electrodes. The flexibe biosensors exposure to low concentrations of target rabbit IgG showed dramatic increase in the source-drain current, which exhibited great sensing performance with the lowest detection limit of 13 fM.

Fabrication of X-band Oscillator on LCP Substrate Using Aerosol Printing

2017 ◽  
Vol 2017 (1) ◽  
pp. 000052-000055
Author(s):  
Christopher Oakley ◽  
Premjeet Chahal ◽  
John Papapolymerou ◽  
John D. Albrecht
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Substrate Material ◽  
Metal Quality ◽  
Microstrip Resonator ◽  
Manufacturing Method ◽  
X Band ◽  
Jet Printing ◽  
Passive Circuit ◽  
Aerosol Jet Printing

Abstract This paper presents a low-cost additive manufacturing method for rapid prototyping of millimeter and microwave circuits using aerosol jet printing of silver nanoparticle ink deposited on commercially available liquid crystal polymer (LCP) substrate material. Two passive circuit elements, a 50 Ω microstrip transmission line and a band-stop microstrip resonator, were designed, fabricated and measured. These passive elements form the basis of a printed X-band transistor-based oscillator circuit in which all metal layers have been printed, including metalized vias. Impacts of via metallization quality on oscillator performance are obtained by comparing measured data and designs. We conclude that printed metal quality (conductivity, roughness and uniformity) is an important fabrication issue for obtaining high-performance 3D printed circuits.

High Performance Organic Field-Effect Transistors and Integrated Inverters

2001 ◽  
Vol 665 ◽  
Author(s):  
A. Ullmann ◽  
J. Ficker ◽  
W. Fix ◽  
H. Rost ◽  
W. Clemens ◽  
...  
Keyword(s):  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Low Cost ◽  
Drain Current ◽  
Organic Field Effect Transistors ◽  
Metal Contacts ◽  
Gate Electrodes ◽  
Polymer Semiconductors ◽  
Set Up

ABSTRACTIntegrated plastic circuits (IPCs) will become an integral component of future low cost electronics. For low cost processes IPCs have to be made of all-polymer Transistors. We present our recent results on fabrication of Organic Field-Effect Transistors (OFETs) and integrated inverters. Top-gate transistors were fabricated using polymer semiconductors and insulators. The source-drain structures were defined by standard lithography of Au on a flexible plastic film, and on top of these electrodes, poly(3-alkylthiophene) (P3AT) as semiconductor, and poly(4-hydroxystyrene) (PHS) as insulator were homogeneously deposited by spin-coating. The gate electrodes consist of metal contacts. With this simple set-up, the transistors exhibit excellent electric performance with a high source-drain current at source - drain and gate voltages below 30V. The characteristics show very good saturation behaviour for low biases and are comparable to results published for precursor pentacene. With this setup we obtain a mobility of 0.2cm2/Vs for P3AT. Furthermore, we discuss organic integrated inverters exhibiting logic capability. All devices show shelf-lives of several months without encapsulation.

scholarly journals Double slot aerosol jet printed antenna for X-band applications

2021 ◽  
Vol 2086 (1) ◽  
pp. 012047
Author(s):  
P V Arsenov ◽  
A S Sobolev ◽  
A A Efimov ◽  
V V Ivanov
Keyword(s):  
Slot Antenna ◽  
Printed Antenna ◽  
Central Frequency ◽  
Printed Antennas ◽  
Flexible Polymer ◽  
X Band ◽  
Microwave Losses ◽  
Jet Printing ◽  
Operating Bandwidth ◽  
Aerosol Jet Printing

Abstract A double slot antenna for X-band applications was designed and aerosol jet printing technology was used to fabricate the prototype with silver nano-ink on a flexible polyimide substrate. We investigated the microwave losses of printed antennas in the range from 100 kHz to 27 GHz, obtained at sintering temperatures of 200 °C and 250 °C. Double slot X-band antennas have been calculated and measured. It was found that an operating bandwidth of the printed antenna is 10% in the region of the central frequency of 10.5 GHz. Thus, the possibility of forming antennas on flexible polymer substrates with high functional characteristics by aerosol jet printing method has been demonstrated.

scholarly journals A Post-Treatment Method to Enhance the Property of Aerosol Jet Printed Electric Circuit on 3D Printed Substrate

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5602
Author(s):  
Bing Wang ◽  
Haining Zhang ◽  
Joon Phil Choi ◽  
Seung Ki Moon ◽  
Byunghoon Lee ◽  
...  
Keyword(s):  
Electrical Resistance ◽  
High Performance ◽  
Electronic Devices ◽  
Electric Circuit ◽  
Treatment Method ◽  
Post Treatment ◽  
Original Structure ◽  
Fused Deposition ◽  
Jet Printing ◽  
Aerosol Jet Printing

Aerosol jet printing of electronic devices is increasingly attracting interest in recent years. However, low capability and high resistance are still limitations of the printed electronic devices. In this paper, we introduce a novel post-treatment method to achieve a high-performance electric circuit. The electric circuit was printed with aerosol jet printing method on an ULTEM substrate. The ULTEM substrate was fabricated by the Fused Deposition Modelling method. After post-treatment, the electrical resistance of the printed electric circuit was changed from 236 mΩ to 47 mΩ and the electric property was enhanced. It was found that the reduction of electric resistance was caused by surface property changes. Different surface analysis methods including scanning electron microscopy (SEM) and x-ray photoelectron spectroscopy (XPS) were used to understand the effectiveness of the proposed method. The results showed that the microsurface structure remained the same original structure before and after treatment. It was found that the surface carbon concentration was significantly increased after treatment. Detailed analysis showed that the C-C bond increased obviously after treatment. The change of electrical resistance was found to be limited to the material’s surface. After polishing, the circuit resistance was changed back to its original value. As the electric circuit is the basic element of electric devices, the proposed method enables the fabrication of high performance devices such as capacitors, strain gauge, and other sensors, which has potential applications in many areas such as industrial, aerospace, and military usage.

Roll-to-Roll Nanoimprinting Metamaterials

2012 ◽  
Vol 1412 ◽  
Author(s):  
Anton Greenwald ◽  
Jae Ryu ◽  
Yisi Liu ◽  
Rana Biswas ◽  
Jong Ok ◽  
...  
Keyword(s):  
Low Cost ◽  
Aluminum Layer ◽  
Large Area ◽  
Coated Substrate ◽  
Roll To Roll ◽  
Flexible Polymer ◽  
Fine Pattern ◽  
Polymer Mold ◽  
Continuous Fabrication ◽  
Flexible Polymer Substrate

ABSTRACTWe investigated continuous fabrication of a large area 2-D metamaterial comprising a metal dot array on a dielectric coated substrate. We demonstrated patterning of metal dots arrays of varying patterns and shapes with diameter of about 2.5 μm and metal-to-metal spacing from 0.3 to 2.5 μm using a nano-imprinting stamp on a roller. The pattern was first fabricated on a standard photolithography mask, reproduced onto a silicon wafer master mold, and then transferred to a flexible polymer mold that was wrapped around a metal roller. The method was used to pattern a thin Al layer on top of SiO2 on a flexible polymer substrate. The aluminum was coated with a resist and the roller moved over the substrate with adjustable speed and pressure to imprint the fine pattern into the resist. The resist was cured, and a very thin layer of residual resist was removed by RIE, followed by a standard etching treatment for patterning the aluminum layer.The as-etched pattern had very few defects and the optical properties of the metamaterial were excellent and correlated well with simulations. This work has shown that low cost, rapid roll-to-roll processing of 2-D metamaterial structures is possible.

High Quality Poly-Si Film and Transistor Formed by Nickel-Induced- Lateral-Crystallization and Pulsed-Rapid-Thermal-Annealing

2001 ◽  
Vol 685 ◽  
Author(s):  
T.C. Leung ◽  
C.F. Cheng ◽  
M.C. Poon
Keyword(s):  
Low Temperature ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
High Performance ◽  
Low Cost ◽  
Drain Current ◽  
Large Area ◽  
High Quality ◽  
Lateral Crystallization ◽  
Si Films

AbstractNickel Induced Lateral Crystallization (NILC) and Pulsed Rapid Thermal Annealing (PRTA) have been used to study new low temperature and high quality poly-silicon (poly-Si) films and thin film transistors (TFTs). The growth rate of poly-Si films has been found to greatly increase from 0.025μm/minute to 1.07μm/minute, and the drain current and performance of TFTs have increased by around 75%. The new poly-Si technology has good potential to apply in high performance, large area, fast throughput, low cost and even low temperature device applications.

scholarly journals Highly conductive electronics circuits from aerosol jet printed silver inks

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kacper Skarżyński ◽  
Jakub Krzemiński ◽  
Małgorzata Jakubowska ◽  
Marcin Słoma
Keyword(s):  
Silver Nanoparticles ◽  
Printed Electronics ◽  
Bulk Material ◽  
Low Cost ◽  
Electrical Performance ◽  
Uniform Structure ◽  
Electrical Measurements ◽  
Jet Printing ◽  
Printed Patterns ◽  
Aerosol Jet Printing

AbstractRecently, low-cost electronics printed on lightweight, flexible and 3D shaped substrates are gaining importance in the markets of wearables and smart packaging. However, printed electronics do not meet the electrical performance of subtractive techniques because the resistivity of metallic printed patterns is still much higher than that of bulk material. To fulfil this need, low-resistive and easy printable inks for high resolution printed electronics techniques are needed. In this work, parameters of silver nanoparticles ink for micro-scale printed electronics technique, Aerosol Jet Printing, are being enhanced. To increase electrical conductivity and enhance printability, surfactants and dispersing agents were used to increase ultrasonic atomisation efficiency, obtain a uniform structure of printed lines, and narrow the width of printed patterns. Electrical measurements show a decrease in resistivity value in samples enhanced by cationic and non-ionic surfactants, by 95%, compared to initially prepared inks. Surfactant additions to silver nanoparticles Aerosol Jet Printing ink show promising features for application in modern electronics.

scholarly journals Review of Materials and Fabrication Methods for Flexible Nano and Micro-Scale Physical Property Sensors

2021 ◽  
Author(s):  
Anesu Nyabadza ◽  
Mercedes Vázquez ◽  
Shirley Coyle ◽  
Brian Fitzpatrick ◽  
Dermot Brabazon
Keyword(s):  
Food Packaging ◽  
Physical Property ◽  
Fused Deposition Modelling ◽  
Self Healing ◽  
Operating Life ◽  
Flexible Sensors ◽  
Fused Deposition ◽  
Copper Manganese ◽  
Jet Printing ◽  
Aerosol Jet Printing

The use of flexible sensors has tripled over the last decade due to the increased demand in various fields including health monitoring, food packaging, electronic skins and soft robotics. Flexible sensors have the ability to be bent and stretched during use and can still maintain their electrical and mechanical properties. This gives them an advantage over rigid sensors that lose their sensitivity when subject to bending. Advancements in 3D printing have enabled the development of tailored flexible sensors. Various additive manufacturing methods are being used to develop these sensors including inkjet printing, aerosol jet printing, fused deposition modelling, direct ink writing, selective laser melting and others. Hydrogels have gained much attention in the literature due to their self-healing and shape transforming. Self-healing enables the sensor to recover from damages such as cracks and cuts incurred during use and this enables the sensor to have a longer operating life and stability. Various polymers are used as substrates on which the sensing conductive material is placed. Polymers including polydimethylsiloxane (PDMS), polyvinyl acetate (PVA), and Kapton are extensively used in flexible sensors. The most widely used nanomaterials in flexible sensors are carbon and silver, however, other nanomaterials such as iron, copper, manganese dioxide and gold are also used to provide controlled levels of conductivity or other functional properties.

Sign in / Sign up

Export Citation Format

Share Document