scholarly journals A general ink formulation of 2D crystals for wafer-scale inkjet printing

2020 ◽  
Vol 6 (33) ◽  
pp. eaba5029 ◽  
Author(s):  
Guohua Hu ◽  
Lisong Yang ◽  
Zongyin Yang ◽  
Yubo Wang ◽  
Xinxin Jin ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Large Scale ◽  
Printed Electronics ◽  
Device Fabrication ◽  
Great Promise ◽  
Binary Solvent ◽  
Droplet Shape ◽  
Wafer Scale ◽  
2D Crystals ◽  
Ink Formulation

Recent advances in inkjet printing of two-dimensional (2D) crystals show great promise for next-generation printed electronics development. Printing nonuniformity, however, results in poor reproducibility in device performance and remains a major impediment to their large-scale manufacturing. At the heart of this challenge lies the coffee-ring effect (CRE), ring-shaped nonuniform deposits formed during postdeposition drying. We present an experimental study of the drying mechanism of a binary solvent ink formulation. We show that Marangoni-enhanced spreading in this formulation inhibits contact line pinning and deforms the droplet shape to naturally suppress the capillary flows that give rise to the CRE. This general formulation supports uniform deposition of 2D crystals and their derivatives, enabling scalable and even wafer-scale device fabrication, moving them closer to industrial-level additive manufacturing.

scholarly journals Photo-Induced Doping in a Graphene Field-Effect Transistor with Inkjet-Printed Organic Semiconducting Molecules

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1753 ◽  
Author(s):  
Nikita Nekrasov ◽  
Dmitry Kireev ◽  
Nejra Omerović ◽  
Aleksei Emelianov ◽  
Ivan Bobrinetskiy
Keyword(s):  
Inkjet Printing ◽  
Field Effect ◽  
Large Scale ◽  
Field Effect Transistor ◽  
Organic Molecules ◽  
Electronic Device ◽  
Chemical Vapor ◽  
Device Fabrication ◽  
Effect Transistor ◽  
Organic Semiconducting Molecules

In this work, we report a novel method of maskless doping of a graphene channel in a field-effect transistor configuration by local inkjet printing of organic semiconducting molecules. The graphene-based transistor was fabricated via large-scale technology, allowing for upscaling electronic device fabrication and lowering the device’s cost. The altering of the functionalization of graphene was performed through local inkjet printing of N,N′-Dihexyl-3,4,9,10-perylenedicarboximide (PDI-C6) semiconducting molecules’ ink. We demonstrated the high resolution (about 50 µm) and accurate printing of organic ink on bare chemical vapor deposited (CVD) graphene. PDI-C6 forms nanocrystals onto the graphene’s surface and transfers charges via π–π stacking to graphene. While the doping from organic molecules was compensated by oxygen molecules under normal conditions, we demonstrated the photoinduced current generation at the PDI-C6/graphene junction with ambient light, a 470 nm diode, and 532 nm laser sources. The local (in the scale of 1 µm) photoresponse of 0.5 A/W was demonstrated at a low laser power density. The methods we developed open the way for local functionalization of an on-chip array of graphene by inkjet printing of different semiconducting organic molecules for photonics and electronics.

High-Yield 4H-SiC Thyristors for Wafer-Scale Interconnection

2012 ◽  
Vol 717-720 ◽  
pp. 1171-1174 ◽  
Author(s):  
Bettina Nechay ◽  
Megan Snook ◽  
Harold Hearne ◽  
Ty McNutt ◽  
Victor Veliadis ◽  
...  
Keyword(s):  
Large Scale ◽  
Active Area ◽  
High Yield ◽  
Great Promise ◽  
Power Switching ◽  
Wafer Scale ◽  
Volume Weight ◽  
Wire Bonds ◽  
Large Active Area ◽  
Processing Defects

Modern power conditioning systems require large active area devices which can support high currents. Though the breakdown and thermal properties of SiC make it an excellent choice for power switching applications, active area size is currently limited due to material and processing defects. One alternative is to parallel discrete diced die to achieve large active areas. However, this increases cost and complexity through dicing, soldering, and forming multiple wire bonds. Furthermore, paralleling discrete devices increases package volume/weight and reduces power density. To overcome these issues and achieve devices of high current switching capabilities, thyristors were designed and fabricated for the purpose of wafer-scale interconnection - which avoids the need of dicing and bonding and can achieve significant current density improvement over the paralleled diced device approach. Discrete thyristors fabricated for interconnection exhibited excellent yields and good uniformity of both blocking and on-state characteristics, showing great promise for large-scale interconnection.

scholarly journals Stanene the New Gas Sensing Wonder Material: Current Status and Future Prospects

2021 ◽  
Author(s):  
Amall Ahmed Ramanathan ◽  
Maha W Aqra
Keyword(s):  
First Principles ◽  
Large Scale ◽  
Gas Sensing ◽  
Hexagonal Lattice ◽  
Device Fabrication ◽  
Current Status ◽  
Great Promise ◽  
Sensing Applications ◽  
Structural Deformations ◽  
New Material

In the search for new 2D materials beyond graphene with similar exemplary properties Stanene the new graphene relative was successfully synthesized and characterized in 2016 [14]. This new material which consists of atomically thin tin (Sn) atoms arranged in a hexagonal lattice has shown great promise in gas sensing applications in its pristine, doped and functionalized forms as evidenced by the recent research outputs following its discovery. Researchers have discovered that with its exotic properties it is highly efficient in the detection of the environmentally harmful gases like SO2, NO2, CO2, NH3 and can serve as a multifunctional gas sensor. In this focused and up-to-date review we aim to group the literature on first principles studies of stanene regards to its application for gas sensing and critically examine the success/failures of its multifunctional gas sensing properties as compared to graphene. We systematically present and discusses how structural deformations, defects and doping effect the gas sensing performance. Despite the impressive progress in the field of gas sensing with stanene shown by first principles calculations, many challenges in large scale synthesis, device fabrication and commercialization need to be addressed. The current review can help understand the current status and drawbacks of stanene and identify future directions in this field.

scholarly journals Surface modification of fused filament fabrication (FFF) 3D printed substrates by inkjet printing polyimide for printed electronics

2020 ◽  
Vol 36 ◽  
pp. 101544
Author(s):  
Devin J. Roach ◽  
Christopher Roberts ◽  
Janet Wong ◽  
Xiao Kuang ◽  
Joshua Kovitz ◽  
...  
Keyword(s):  
Surface Modification ◽  
Inkjet Printing ◽  
Printed Electronics ◽  
Fused Filament Fabrication ◽  
3D Printed

Sol–gel magnetite inks for inkjet printing

2019 ◽  
Vol 7 (21) ◽  
pp. 6426-6432 ◽  
Author(s):  
Denis S. Kolchanov ◽  
Vladislav Slabov ◽  
Kirill Keller ◽  
Ekaterina Sergeeva ◽  
Mikhail V. Zhukov ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Sol Gel ◽  
Device Fabrication ◽  
Magnetic Device ◽  
Magnetic Structures

The article describes an easy-to-implement and print-ready composition for inkjet printing of magnetic structures, which can be used for security printing, coding, and marking, magnetic device fabrication or creation of micro-antennas.

Large-scale synthesis of copper nanoparticles by chemically controlled reduction for applications of inkjet-printed electronics

2008 ◽  
Vol 19 (41) ◽  
pp. 415604 ◽  
Author(s):  
Youngil Lee ◽  
Jun-rak Choi ◽  
Kwi Jong Lee ◽  
Nathan E Stott ◽  
Donghoon Kim
Keyword(s):  
Copper Nanoparticles ◽  
Large Scale ◽  
Printed Electronics ◽  
Large Scale Synthesis

scholarly journals Introduction of Chalcogenide Glasses to Additive Manufacturing: Nanoparticle Ink Formulation, Inkjet Printing, and Phase Change Devices Fabrication

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
A. Ahmed Simon ◽  
B. Badamchi ◽  
H. Subbaraman ◽  
Y. Sakaguchi ◽  
L. Jones ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Change ◽  
Inkjet Printing ◽  
Chalcogenide Glasses ◽  
Dip Coating ◽  
Potential Applications ◽  
Coating Methods ◽  
Report Data ◽  
Nanoparticle Ink ◽  
Ink Formulation

AbstractChalcogenide glasses are one of the most versatile materials that have been widely researched because of their flexible optical, chemical, electronic, and phase change properties. Their application is usually in the form of thin films, which work as active layers in sensors and memory devices. In this work, we investigate the formulation of nanoparticle ink of Ge–Se chalcogenide glasses and its potential applications. The process steps reported in this work describe nanoparticle ink formulation from chalcogenide glasses, its application via inkjet printing and dip-coating methods and sintering to manufacture phase change devices. We report data regarding nanoparticle production by ball milling and ultrasonication along with the essential characteristics of the formed inks, like contact angle and viscosity. The printed chalcogenide glass films were characterized by Raman spectroscopy, X-ray diffraction, energy dispersive spectroscopy and atomic force microscopy. The printed films exhibited similar compositional, structural, electronic and optical properties as the thermally evaporated thin films. The crystallization processes of the printed films are discussed compared to those obtained by vacuum thermal deposition. We demonstrate the formation of printed thin films using nanoparticle inks, low-temperature sintering and proof for the first time, their application in electronic and photonic temperature sensors utilizing their phase change property. This work adds chalcogenide glasses to the list of inkjet printable materials, thus offering an easy way to form arbitrary device structures for optical and electronic applications.

scholarly journals Synthesis of Printable Polyvinyl Alcohol for Aerosol Jet and Inkjet Printing Technology

Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 220
Author(s):  
Mahmuda Akter Monne ◽  
Chandan Qumar Howlader ◽  
Bhagyashree Mishra ◽  
Maggie Yihong Chen
Keyword(s):  
Polyvinyl Alcohol ◽  
Inkjet Printing ◽  
Micro Electro Mechanical System ◽  
Device Fabrication ◽  
Silicon Substrates ◽  
Excellent Candidate ◽  
Jet Printing ◽  
Inkjet Printing Technology ◽  
Transistor Fabrication ◽  
Aerosol Jet Printing

Polyvinyl Alcohol (PVA) is a promising polymer due to its high solubility with water, availability in low molecular weight, having short polymer chain, and cost-effectiveness in processing. Printed technology is gaining popularity to utilize processible solution materials at low/room temperature. This work demonstrates the synthesis of PVA solution for 2.5% w/w, 4.5% w/w, 6.5% w/w, 8.5% w/w and 10.5% w/w aqueous solution was formulated. Then the properties of the ink, such as viscosity, contact angle, surface tension, and printability by inkjet and aerosol jet printing, were investigated. The wettability of the ink was investigated on flexible (Kapton) and non-flexible (Silicon) substrates. Both were identified as suitable substrates for all concentrations of PVA. Additionally, we have shown aerosol jet printing (AJP) and inkjet printing (IJP) can produce multi-layer PVA structures. Finally, we have demonstrated the use of PVA as sacrificial material for micro-electro-mechanical-system (MEMS) device fabrication. The dielectric constant of printed PVA is 168 at 100 kHz, which shows an excellent candidate material for printed or traditional transistor fabrication.

Preparation of Conductive Nanosilver Ink and its Application on RFID Tags

2014 ◽  
Vol 904 ◽  
pp. 121-125 ◽  
Author(s):  
Ji Lan Fu ◽  
Ya Ling Li ◽  
Li Xin Mo ◽  
Yu Wang ◽  
Jun Ran ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
Screen Printing ◽  
Surface Resistance ◽  
Large Scale ◽  
Printed Electronics ◽  
Silver Content ◽  
Rfid Tags ◽  
Rheological Characteristics ◽  
Conductive Ink ◽  
New Type

The recent dramatic progress in the printed electronics and flexible electronics, due to the universality of the substrates including the foldable and stretchable substrates, has opened a new prospect in the field of future electronics. In this paper, silver nanospheres in large-scale are synthesized, the nanosilver ink with 63.88% silver content are prepared and a new type of highly conductive and far identify distance RFID tags are manufactured. Especially there are no resin and other additives containing in our conductive ink which satisfy the rheological characteristics and process of screen printing. The tags exhibit the best radiation performance own to there is no high temperature sintering in need. The surface resistance of the tags could be 80 mΩ/, and the identify distance reach to 6.0m. Keywords:silver nanoparticles, conductive ink, RFID tags

scholarly journals One-step preparation of Cr2O3-based ink with long-term dispersion stability for inkjet applications

2021 ◽  
Author(s):  
Dongjin Xie ◽  
Qiuyi Luo ◽  
Shen Zhou ◽  
Mei Zu ◽  
Haifeng Cheng
Keyword(s):  
High Precision ◽  
Inkjet Printing ◽  
Printed Electronics ◽  
Direct Writing ◽  
Deposition Technique ◽  
Functional Material ◽  
Wide Range ◽  
One Step ◽  
Oled Display

Inkjet printing of functional material has shown a wide range of application in advertzing, OLED display, printed electronics and other specialized utilities that require high-precision, mask-free, direct-writing deposition technique. Nevertheless,...

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