Fabrication of Inkjet Printed Flexible Electronics by Low Temperature Subtractive Laser Processing

2005 ◽  
Author(s):  
Seung Hwan Ko ◽  
Jaewon Chung ◽  
Yeonho Choi ◽  
Costas P. Griogoropoulos ◽  
Dimos Poulikakos
Keyword(s):  
Low Temperature ◽  
Laser Beam ◽  
Flexible Electronics ◽  
Monomethyl Ether ◽  
Polymer Substrate ◽  
Nano Particles ◽  
Drop On Demand ◽  
Flexible Polymer ◽  
Gold Nano Particles ◽  
Electrical Components

The low temperature fabrication of passive electrical components (resistor, capacitor) on flexible substrates is presented in this paper. A drop-on-demand (DOD) ink-jetting system was used to print passive electrical components from gold nano-particles suspended in Alpha-Terpineol solution on a flexible polymer substrate. PVP (poly-4-vinylphenol) in PGMEA (propylene glycol monomethyl ether acetate) solvent was inkjet-printed as dielectric layer for capacitor. A pulsed laser beam was irradiated to produce finer electrical components, thereby overcoming the inherent limitation of inkjet processing. A continuous Ar laser beam was irradiated locally to evaporate carrier solvent as well as to cure the gold nano-particles in order to improve the electrical resistivity. Conductor lines and capacitors were fabricated on polymer substrate and their performance was analyzed.

Subtractive Laser Processing of Low Temperature Inkjet Printed Micro Electric Components of Functional Nano-Ink for Flexible Electronics

2005 ◽  
Author(s):  
Seung Hwan Ko ◽  
Jaewon Chung ◽  
Yeonho Choi ◽  
David J. Hwang ◽  
Costas P. Grigoropoulos ◽  
...  
Keyword(s):  
Low Temperature ◽  
Melting Temperature ◽  
Flexible Electronics ◽  
Flexible Substrate ◽  
Nano Particles ◽  
Additive Process ◽  
Drop On Demand ◽  
Flexible Polymer ◽  
Electrical Components ◽  
First Time

The low temperature fabrication of electrical components on flexible substrate is presented in this paper. As an additive process, combined with a CAD tool, a drop-on-demand (DOD) inkjetting system was used to print electrical components from gold nano-particles suspended in Alpha-Terpineol solution on flexible polymer substrates. In a subtractive process, Nd:YAG pulsed laser was irradiated to produce finer electrical components. Continuous Ar laser was irradiated locally to evaporate carrier solution as well as to sinter gold nanoparticles. It is demonstrated for the first time, that the melting temperature depression of gold nanoink, combined with local laser heating and ablation can be used to fabricate micro electric components on low melting temperature polymer substrate to realize flexible electronics.

Air Stable High Resolution OFET (Organic Field Effect Transistor) Fabrication Using Inkjet Printing and Low Temperature Selective Laser Sintering Process

2006 ◽  
Author(s):  
Seung Hwan Ko ◽  
Heng Pan ◽  
Costas P. Grigoropoulos ◽  
Dimos Poulikakos
Keyword(s):  
High Resolution ◽  
Low Temperature ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Ambient Air ◽  
Nano Particles ◽  
Organic Field Effect Transistor ◽  
Effect Transistor ◽  
Gold Nano Particles ◽  
Transistor Fabrication

A novel high resolution OFET (organic field effect transistor) fabrication process has been developed to realize low cost, large area electronics at low processing temperature without use of expensive, high temperature lithography process in vacuum. A drop-on-demand (DOD) ink-jetting system was used to print gold nano-particles suspended in Alpha-Terpineol solvent. Continuous Argon ion laser was irradiated locally to evaporate carrier solvent as well as sinter gold nano-particles in order to fabricate metal source and drain electrodes with high resolution and minimal thermal damage to the substrate. PVP (poly-4-vinylphenol) in Hexanol solvent and air-stable semiconductor polymer (Carboxulate - functionalized Polythiophenes) in 1,2-dichlorobenzene (o-DCB) solvent were spin-coated to form thin film of dielectric layer and semiconducting active layer. All of the processes were carried out in plastic-compatible low temperature, ambient air and atmospheric pressure environment. The OFETs showed good accumulation mode p-channel transistor behavior with carrier mobility of 0.01cm2/V·s and Ion/Ioff ratio of ranging from 103 to 104.

Low Temperature Plasma Sintering of Silver Nanoparticles for Potential Flexible Electronics Applications

2012 ◽  
Vol 1529 ◽  
Author(s):  
Siyuan Ma ◽  
Vadim Bromberg ◽  
Frank D. Egitto ◽  
Timothy J. Singler
Keyword(s):  
Low Temperature ◽  
Flexible Electronics ◽  
Treatment Time ◽  
Functional Materials ◽  
Average Diameter ◽  
Plasma Parameters ◽  
Temperature Plasma ◽  
Polymer Substrates ◽  
Flexible Polymer ◽  
Temperature Requirements

ABSTRACTDeposition of solution-processed functional materials generally requires additional post-processing to optimize the functionality of the material. We study sintering of Ag nanoparticle (NP) (with average diameter 77nm) deposits for improved electrical conductivity, with emphasis on Argon plasma methods compatible with the low temperature requirements of regular low-cost flexible polymer substrates. The relationship between plasma parameters (such as power and treatment time) versus sintering results (sintered structure depth, film continuity and electrical sheet resistance) will be reported. According to our efforts so far, we have achieved the electrical resistivity of the sintered film at about 20 times greater than the value of bulk silver using a process compatible with the low temperature requirements of common flexible polymer substrates.

scholarly journals Low-Temperature Magnetism of Gold Nano Particles Contained in Electrochemical Sugar Recognition System

2019 ◽  
Vol 55 (2) ◽  
pp. 1-4
Author(s):  
T. Goto ◽  
Y. Kitamoto ◽  
K. Matsui ◽  
H. Kuroe ◽  
A. Endo ◽  
...  
Keyword(s):  
Low Temperature ◽  
Recognition System ◽  
Nano Particles ◽  
Gold Nano Particles ◽  
Sugar Recognition

Low Temperature OFET (Organic Field Effect Transistor) Fabrication by Metal Nanoparticle Imprinting

2007 ◽  
Author(s):  
Seung Hwan Ko ◽  
Inkyu Park ◽  
Heng Pan ◽  
Albert P. Pisano ◽  
Costas P. Grigoropoulos
Keyword(s):  
Low Temperature ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Metal Nanoparticle ◽  
Nano Particles ◽  
Organic Field Effect Transistor ◽  
Polymer Substrates ◽  
Flexible Polymer ◽  
Effect Transistor ◽  
Transistor Fabrication

The low temperature fabrication of OFET (organic field effect transistor) is presented in this paper. PDMS imprinting mold was used to pattern gold nano-particles suspended in Alpha-Terpineol solvent. After imprinting, nanoparticles was dried and then sintered at plastic compatible low temperature. Finally, air stable semiconductor polymer (modified polythiophene) in dichlorobenzene (o-DCB) solution to fabricate OFETs on flexible polymer substrates. The performance of the transistors were characterized and discussed.

Low Temperature Fabrication of Residue-Free Polymer Patterns on Flexible Polymer Substrate

2009 ◽  
Vol 48 (9) ◽  
pp. 095003 ◽  
Author(s):  
Ki-Yeon Yang ◽  
Kyung-Min Yoon ◽  
Jong-Woo Kim ◽  
Jong-Hwa Lee ◽  
Heon Lee
Keyword(s):  
Low Temperature ◽  
Polymer Substrate ◽  
Flexible Polymer ◽  
Flexible Polymer Substrate

Fabrication of 3D Temperature Sensor Using Magnetostrictive Inkjet Printhead

2020 ◽  
Vol 64 (5) ◽  
pp. 50405-1-50405-5
Author(s):  
Young-Woo Park ◽  
Myounggyu Noh
Keyword(s):  
Flexible Electronics ◽  
Inkjet Printing ◽  
Temperature Sensor ◽  
Computer Aided Design ◽  
Low Cost ◽  
Three Dimensional ◽  
Drop On Demand ◽  
Aided Design ◽  
Nanoparticle Ink ◽  
Inkjet Printhead

Abstract Recently, the three-dimensional (3D) printing technique has attracted much attention for creating objects of arbitrary shape and manufacturing. For the first time, in this work, we present the fabrication of an inkjet printed low-cost 3D temperature sensor on a 3D-shaped thermoplastic substrate suitable for packaging, flexible electronics, and other printed applications. The design, fabrication, and testing of a 3D printed temperature sensor are presented. The sensor pattern is designed using a computer-aided design program and fabricated by drop-on-demand inkjet printing using a magnetostrictive inkjet printhead at room temperature. The sensor pattern is printed using commercially available conductive silver nanoparticle ink. A moving speed of 90 mm/min is chosen to print the sensor pattern. The inkjet printed temperature sensor is demonstrated, and it is characterized by good electrical properties, exhibiting good sensitivity and linearity. The results indicate that 3D inkjet printing technology may have great potential for applications in sensor fabrication.

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