scholarly journals Instant, multiscale dry transfer printing by atomic diffusion control at heterogeneous interfaces

2021 ◽  
Vol 7 (28) ◽  
pp. eabh0040
Author(s):  
Seungkyoung Heo ◽  
Jeongdae Ha ◽  
Sook Jin Son ◽  
In Sun Choi ◽  
Hyeokjun Lee ◽  
...  
Keyword(s):  
Electronic Devices ◽  
Chemical Diffusion ◽  
Atomic Diffusion ◽  
Diffusion Control ◽  
Thermal Expansion Mismatch ◽  
Transfer Printing ◽  
Shape Distortion ◽  
The Past ◽  
Heterogeneous Interfaces ◽  
Printing Technique

Transfer printing is a technique that integrates heterogeneous materials by readily retrieving functional elements from a grown substrate and subsequently printing them onto a specific target site. These strategies are broadly exploited to construct heterogeneously integrated electronic devices. A typical wet transfer printing method exhibits limitations related to unwanted displacement and shape distortion of the device due to uncontrollable fluid movement and slow chemical diffusion. In this study, a dry transfer printing technique that allows reliable and instant release of devices by exploiting the thermal expansion mismatch between adjacent materials is demonstrated, and computational studies are conducted to investigate the fundamental mechanisms of the dry transfer printing process. Extensive exemplary demonstrations of multiscale, sequential wet-dry, circuit-level, and biological topography-based transfer printing demonstrate the potential of this technique for many other emerging applications in modern electronics that have not been achieved through conventional wet transfer printing over the past few decades.

scholarly journals Transfer Printing and its Applications in Flexible Electronic Devices

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 283 ◽  
Author(s):  
Honglei Zhou ◽  
Weiyang Qin ◽  
Qingmin Yu ◽  
Huanyu Cheng ◽  
Xudong Yu ◽  
...  
Keyword(s):  
Interfacial Adhesion ◽  
Electronic Devices ◽  
Digital Camera ◽  
Electronic Systems ◽  
Transfer Printing ◽  
Flexible Display ◽  
The Past ◽  
Flexible Electronic ◽  
Monitoring Devices ◽  
Flexible Electronic Devices

Flexible electronic systems have received increasing attention in the past few decades because of their wide-ranging applications that include the flexible display, eyelike digital camera, skin electronics, and intelligent surgical gloves, among many other health monitoring devices. As one of the most widely used technologies to integrate rigid functional devices with elastomeric substrates for the manufacturing of flexible electronic devices, transfer printing technology has been extensively studied. Though primarily relying on reversible interfacial adhesion, a variety of advanced transfer printing methods have been proposed and demonstrated. In this review, we first summarize the characteristics of a few representative methods of transfer printing. Next, we will introduce successful demonstrations of each method in flexible electronic devices. Moreover, the potential challenges and future development opportunities for transfer printing will then be briefly discussed.

scholarly journals A Strategy toward Realizing Ultrashort Channels and Microstructures Array by Piezoelectric Inkjet Printing

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1515
Author(s):  
Jianqiu Chen ◽  
Liao Gan ◽  
Zhipeng Pan ◽  
Honglong Ning ◽  
Zhiqiang Fang ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Electronic Devices ◽  
Functional Materials ◽  
Cost Effective ◽  
Large Area ◽  
Feature Size ◽  
Nanoscale Structures ◽  
The Past ◽  
Printing Technique ◽  
The Cost

Inkjet printing has been proved to be a powerful tool in the cost-effective ambient deposition of functional materials for the fabrication of electronic devices in the past decades. However, restricted by equipment and inks, the feature size of printed dots or lines with conventional inkjet printing is usually limited to several tens of micrometers, which could not fit the requirements for the fabrication of large-area, high-resolution microscale, even nanoscale, structures. Therefore, various technical means were developed for breaking the equipment limits. Here, we report a strategy for realizing ultrashort channels and homogeneous microstructures arrays by a conventional piezoelectric inkjet printing technique without any additional pre-mask process on the substrate. This strategy extends application of piezoelectric inkjet printing technique to biological and technological areas.

Atomic Diffusion and its Relation to Thermodynamic Forces in Al-Ni Melts

2009 ◽  
Vol 289-292 ◽  
pp. 705-710 ◽  
Author(s):  
Axel Griesche ◽  
Bo Zhang ◽  
Jürgen Horbach ◽  
Andreas Meyer
Keyword(s):  
Chemical Diffusion ◽  
Atomic Diffusion ◽  
Dynamic Simulations ◽  
X Ray ◽  
Self Diffusion ◽  
Ni Alloys ◽  
Quasielastic Neutron ◽  
Cross Correlations ◽  
Quasielastic Neutron Scattering ◽  
Thermodynamic Forces

We make use of a novel X-ray radiography method to measure chemical diffusion in capillaries in binary Al-Ni melts. Data are compared to self diffusion coefficients of Ni obtained by quasielastic neutron scattering as well as diffusion and thermodynamic data obtained by molecular dynamic simulations. Interdiffusion compared to self diffusion is enhanced with a maximum at Al40Ni60. We show that this enhancement is caused by thermodynamic forces as described by the Darken-Manning equation. In liquid Al-Ni alloys the Manning factor that is smaller than one can be attributed to collective cross correlations.

An Accurate Thermomechanical Model for Laser-Driven Microtransfer Printing

2017 ◽  
Vol 84 (6) ◽  
Author(s):  
Yuyan Gao ◽  
Yuhang Li ◽  
Rui Li ◽  
Jizhou Song
Keyword(s):  
Size Effect ◽  
Theoretical Basis ◽  
System Optimization ◽  
Engineering Systems ◽  
Transfer Printing ◽  
Thermomechanical Model ◽  
Element Analysis ◽  
Mechanics Model ◽  
Interfacial Fracture Mechanics ◽  
Printing Technique

A recently developed transfer printing technique, laser-driven noncontact microtransfer printing, which involves laser-induced heating to initiate the separation at the interface between the elastomeric stamp (e.g., polydimethylsiloxane (PDMS)) and hard micro/nanomaterials (e.g., Si chip), is valuable to develop advanced engineering systems such as stretchable and curvilinear electronics. The previous thermomechanical model has identified the delamination mechanism successfully. However, that model is not valid for small-size Si chip because the size effect is ignored for simplification in the derivation of the crack tip energy release rate. This paper establishes an accurate interfacial fracture mechanics model accounting for the size effect of the Si chip. The analytical predictions agree well with finite element analysis. This accurate model may serve as the theoretical basis for system optimization, especially for determining the optimal condition in the laser-driven noncontact microtransfer printing.

scholarly journals You Gotta Fight For Your Right To Repair

2019 ◽  
Vol 6 (2) ◽  
pp. 509-540
Author(s):  
Daniel Moore
Keyword(s):  
Electronic Devices ◽  
Digital Rights Management ◽  
State Legislatures ◽  
Federal Law ◽  
Digital Rights ◽  
The Past ◽  
Rights Management ◽  
Device Manufacturer

Consumers are keeping their electronic devices longer today than in the past because the prices of the devices have increased. Increased prices have culminated in more consumers needing their devices repaired. In turn, manufacturers use the Digital Millennium Copyright Act, a federal law, and digital rights management to force consumers to get their devices repaired by either the device manufacturer or one of its authorized repairers. In response, states have considered right-to-repair laws which require manufacturers to make repair tools, equipment, and software available to device owners and independent repair shops. While almost half of the country’s state legislatures have considered these bills, no state has enacted one fearing that the Digital Millennium Copyright Act will preempt any state’s action on the issue. Critics of these bills argue that the bills conflict with federal law, and therefore, federal law preempts right-to-repair laws. However, this Article argues that the Digital Millennium Copyright Act would not preempt a state’s right-to-repair law.

scholarly journals LFP-Based Gravure Printed Cathodes for Lithium-Ion Printed Batteries

Membranes ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 71 ◽  
Author(s):  
Maria Montanino ◽  
Giuliano Sico ◽  
Anna De Girolamo Del Mauro ◽  
Margherita Moreno
Keyword(s):  
Production Technology ◽  
High Speed ◽  
Electronic Devices ◽  
Lithium Ion ◽  
Gravure Printing ◽  
Printing Technique

Printed batteries have undergone increased investigation in recent years because of the growing daily use of small electronic devices. With this in mind, industrial gravure printing has emerged as a suitable production technology due to its high speed and quality, and its capability to produce any shape of image. The technique is one of the most appealing for the production of functional layers for many different purposes, but it has not been highly investigated. In this study, we propose a LiFePO4 (LFP)-based gravure printed cathode for lithium-ion rechargeable printed batteries and investigate the possibility of employing this printing technique in battery manufacture.

A Feasibility Study of Roll to Roll Printing on Graphene

2015 ◽  
Vol 799-800 ◽  
pp. 402-406 ◽  
Author(s):  
S. Hassan ◽  
Mohd Sallehuddin Yusof ◽  
M.I. Maksud ◽  
M.N. Nodin ◽  
Noor Azlina Rejab
Keyword(s):  
High Speed ◽  
Electronic Device ◽  
Electronic Devices ◽  
Printing Industry ◽  
Micro Scale ◽  
Roll To Roll ◽  
Printing Technique ◽  
Printing Ink ◽  
Variable Substrate ◽  
Printing Techniques

Roll to roll process is one of the famous printing techniques that are possible to create graphic and electronic device on variable substrate by using conductive ink. Graphene is an example of material that can be used as printing ink which usually used in producing micro-scale electronic devices. Here, it is proposed that extending roll to roll printing technique into the multiple micro-scale printing fine solid line onto substrate by using graphene as a printing ink. Flexography is a high speed roll to roll printing technique commonly used in paper printing industry. And this study elaborates the feasibility of graphene as a printing ink use in combination of flexography and micro-contact or micro-flexo printing for micro fine solid line. This paper will illustrates the review of graphene in producing multiple micro-solid lines printing capability for the application of printing electronic, graphic and bio-medical.

Thermal transfer printing technique for electrode patterning in cofired ceramic multi-layer devices

1994 ◽  
Vol 9 (5) ◽  
pp. 1193-1198
Author(s):  
Kumi Okuwada ◽  
Tetsuo Okuyama
Keyword(s):  
Metal Powder ◽  
Transfer Printing ◽  
Thermal Transfer ◽  
Ceramic Capacitor ◽  
Green Sheet ◽  
Printing Technique

A new mask-less electrode patterning method using a thermal transfer printing technique was investigated. Thermal ink ribbons were prepared, which included more than 50 vol. % conductive metal powder. Arbitrary electrode patterns were designed with a computer and printed out on a ceramic green sheet with a serial thermal printer. The ceramic green sheets with printed electrode patterns were stacked up and cofired to obtain a multi-layer ceramic capacitor.

scholarly journals Research Advances of Typical Two Dimensional Layered Thermoelectric Materials

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Haihua HUANG ◽  
Xiaofeng FAN
Keyword(s):  
Structural Properties ◽  
Thermoelectric Properties ◽  
Thermoelectric Materials ◽  
Electronic Devices ◽  
Layered Materials ◽  
Two Dimensional ◽  
The Past ◽  
2D Layered Materials ◽  
Potential Applications ◽  
Properties Of Materials

Thermoelectric technologies have caught our intense attention due to their ability of heat conversion into electricity. The considerable efforts have been taken to develop and enhance thermoelectric properties of materials over the past several decades. Recently, two-dimensional layered materials are making the promise for potential applications of thermoelectric devices because of the excellent physical and structural properties. Here, a comprehensive coverage about recent progresses in thermoelectric properties of typical two dimensional (2D) layered materials, including the theoretical and experimental results, is provided. Moreover, the potential applications of 2D thermoelectric materials are also involved. These results indicate that the development of 2D thermoelectric materials take a key role in the flexible electronic devices with thermoelectric technologies.

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