Large area photonic flash soldering of thin chips on flex foils for flexible electronic systems: In situ temperature measurements and thermal modelling

Flexible lithium–sulfur batteries are of great importance for flexible electronic systems. Herein, a diamond-shaped sulfur-containing composite for large-area flexible electrodes was prepared, and a prototype of flexible lithium–sulfur battery is successfully demonstrated.

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In situ SEM observation and interface adhesion strength analysis of a serpentine interconnect on a flexible electronic composite film

Applied Physics Express ◽

10.35848/1882-0786/abd370 ◽

2020 ◽

Vol 14 (1) ◽

pp. 017002

Author(s):

Cheng Chen ◽

Rui Chen ◽

Wanghang Gu ◽

Bing Liu ◽

Hongwei Ji

Keyword(s):

Composite Film ◽

Adhesion Strength ◽

Strength Analysis ◽

Interface Adhesion ◽

Sem Observation ◽

Flexible Electronic

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Chlorosulfuric acid-assisted production of functional 2D materials

npj 2D Materials and Applications ◽

10.1038/s41699-021-00215-2 ◽

2021 ◽

Vol 5 (1) ◽

Author(s):

Mohsen Moazzami Gudarzi ◽

Maryana Asaad ◽

Boyang Mao ◽

Gergo Pinter ◽

Jianqiang Guo ◽

...

Keyword(s):

Hexagonal Boron Nitride ◽

2D Materials ◽

Real Life ◽

Large Area ◽

Polar Solvents ◽

Aspect Ratios ◽

Two Dimensional Materials ◽

Liquid Phase Exfoliation

AbstractThe use of two-dimensional materials in bulk functional applications requires the ability to fabricate defect-free 2D sheets with large aspect ratios. Despite huge research efforts, current bulk exfoliation methods require a compromise between the quality of the final flakes and their lateral size, restricting the effectiveness of the product. In this work, we describe an intercalation-assisted exfoliation route, which allows the production of high-quality graphene, hexagonal boron nitride, and molybdenum disulfide 2D sheets with average aspect ratios 30 times larger than that obtained via conventional liquid-phase exfoliation. The combination of chlorosulfuric acid intercalation with in situ pyrene sulfonate functionalisation produces a suspension of thin large-area flakes, which are stable in various polar solvents. The described method is simple and requires no special laboratory conditions. We demonstrate that these suspensions can be used for fabrication of laminates and coatings with electrical properties suitable for a number of real-life applications.

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Toward Manufacturing Low-Cost, Large-Area Electronics

MRS Bulletin ◽

10.1557/mrs2006.121 ◽

2006 ◽

Vol 31 (6) ◽

pp. 471-475 ◽

Cited By ~ 12

Author(s):

Marc Chason ◽

Daniel R. Gamota ◽

Paul W. Brazis ◽

Krishna Kalyanasundaram ◽

Jie Zhang ◽

...

Keyword(s):

Printed Electronics ◽

Low Cost ◽

Consumer Products ◽

Electronic Systems ◽

Printed Wiring Board ◽

Large Area ◽

Active Devices ◽

Materials Research ◽

Wiring Board ◽

Large Area Electronics

AbstractDevelopments originally targeted toward economical manufacturing of telecommunications products have planted the seeds for new opportunities such as low-cost, large-area electronics based on printing technologies. Organic-based materials systems for printed wiring board (PWB) construction have opened up unique opportunities for materials research in the fabrication of modular electronic systems.The realization of successful consumer products has been driven by materials developments that expand PWB functionality through embedded passive components, novel MEMS structures (e.g., meso-MEMS, in which the PWB-based structures are at the milliscale instead of the microscale), and microfluidics within the PWB. Furthermore, materials research is opening up a new world of printed electronics technology, where active devices are being realized through the convergence of printing technologies and microelectronics.

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Stretchable interconnections for flexible electronic systems

10.1109/iembs.2009.5332697 ◽

2009 ◽

Cited By ~ 1

Author(s):

Lin Jianhui ◽

Yan Bing ◽

Wu Xiaoming ◽

Ren Tianling ◽

Liu Litian

Keyword(s):

Electronic Systems ◽

Flexible Electronic

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Large area multi-material-multi-photon 3D printing with fast in-situ material replacement

Laser 3D Manufacturing VIII ◽

10.1117/12.2583487 ◽

2021 ◽

Author(s):

Yuan Gao ◽

Souha Toukabri ◽

Ye Yu ◽

Andreas Richter ◽

Robert Kirchner

Keyword(s):

3D Printing ◽

Large Area

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Mechanically Aspirated Solar Radiation Shields: A CFD and Neural Network Design Analysis

10.1115/imece2001/htd-24287 ◽

2001 ◽

Author(s):

B. M. Fichera ◽

R. L. Mahajan ◽

T. W. Horst

Keyword(s):

Neural Network ◽

Solar Radiation ◽

Temperature Sensor ◽

Temperature Measurements ◽

Analysis And Design ◽

Computational Fluid Dynamics Analysis ◽

Radiation Shields ◽

Input Variables ◽

The Relationship

Abstract Accurate air temperature measurements made by surface meteorological stations are demanded by climate research programs for various uses. Heating of the temperature sensor due to inadequate coupling with the environment can lead to significant errors. Therefore, accurate in-situ temperature measurements require shielding the sensor from exposure to direct and reflected solar radiation, while also allowing the sensor to be brought into contact with atmospheric air at the ambient temperature. The difficulty in designing a radiation shield for such a temperature sensor lies in satisfying these two conditions simultaneously. In this paper, we perform a computational fluid dynamics analysis of mechanically aspirated radiation shields (MARS) to study the effect of geometry, wind speed, and interplay of multiple heat transfer processes. Finally, an artificial neural network model is developed to learn the relationship between the temperature error and specified input variables. The model is then used to perform a sensitivity analysis and design optimization.

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