ADVANCED MANUFACTURING

Roll-to-Roll Manufacturing for Scale-up of Flexible Electronics

Roll-to-roll (R2R) serves as a pivotal platform for scaling up the manufacturing of flexible devices, with applications spanning diverse industries such as lithium-ion batteries, flexible electronics, IoT sensors, solar cell, commercial flat panel displays, micro-electro-mechanical systems (MEMS), outer space structures, gas and liquid separation membranes, and OLED lighting.

Applications:

(check more from the link to Applied Materials WEB Coating GmbH)

Smart Wristband

Gao et al. (2016)

Flexible displays

Courtesy: Royole Corp.

Packaged solar cell

Courtesy: Jiang Solar

James Webb Space Telescope

Heliogyro solar sail

Courtesy: NASA Langley Research Center

Flexible batteries

Courtesy: Samsung Corp.

Hydrogen fuel cells with R2R system

Courtesy: National Renewable Energy Laboratory

Finger patterned supercapacitor

Kang et al. (2018)

The effects of tension variation ( linear variation σ ) and surrounding air / fluid to frequencies:

FENG's Hydrodynamic Functions for fluid-coupled web vibrations ( length to width ratio ratio: κ ):

Mode shapes:

Mode 11 - in vacuo, uniform tension distribution

Mode 11 - in air, uniform tension distribution

Mode 11 - in vacuo, linearly variated tension distribution

Mode 11 - in air, linearly variated tension distribution

Mode 12 - in vacuo, uniform tension distribution

Mode 12 - in air, uniform tension distribution

Mode 12 - in vacuo, linearly variated tension distribution

Mode 12 - in air, linearly variated tension distribution

In-line Metrology for Directed Energy Deposition (DED) Metal 3D Printing

Will update when we obtain new results

Photoelastic thin film stress testing

Testing with various thin films

Heat Transfer Simulation, Control, and Optimization of Laser-annealing-based Processes.

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