3D-Printed Self-Folding Electronics

Subramanian Sundaram

doi:10.1021/acsami.7b10443

2017-09-08

Subramanian Sundaram *

DOI：10.1021/acsami.7b10443

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摘要

En 中文

Self-transforming structures are gaining prominence due to their general ability to adopt programmed shapes each tailored for specific functions. Composites that self-fold have so far relied on using the stimuliresponsive mechanisms focusing on reversible shape change. Integrating additional functions within these composites can rapidly enhance their practical applicability; however, this remains a challenging problem. Here, we demonstrate a method for spontaneous folding of three-dimensional (3D)-printed composites with embedded electronics at room temperature. The composite is printed using a multimaterial 3D-printing process with no external processing steps. Upon peeling from the print platform, the composite self-shapes itself using the residual forces resulting from polymer swelling during the layer-by-layer fabrication process. As a specific example, electrochromic elements are printed within the composite and can be electrically controlled through its folded legs. Our shape-transformation scheme provides a route to transform planar electronics into nonplanar geometries containing the overhangs. Integrating electronics within complex 3D shapes can enable new applications in sensing and robotics.

Keyword:

self-folding

multimaterial 3D-printing

flexible electronics

electrochromic pixels

robotics

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期刊

ACS Applied Materials and Interfaces

IF:

8.2

论文数:

6.1W

被引数:

38.7W

机构

university of massachusetts system

学者数:

3.9W

论文数: 3.6W

被引数: 42

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