Session: 03-15-03: Multifunctional Materials, Structures and Devices: Modeling, Design, Manufacturing, and Characterization

Paper Number: 77443

Start Time: Thursday, 06:25 PM

77443 - Multifunctional Origami Optoelectronics for Multimodal Environmental Sensing 

Origami, an ancient form of art, is rapidly evolving into means to realize engineering applications that are difficult or impossible to achieve using other techniques. Due to their shape-adaptive nature, origami designs, originally applied only to paper, can serve as routes to large-scale structural systems that require packaging and deployment, such as foldable solar panels, retractable roofs, deployable sunshields, and many others. Much research on engineering and functional origami has been devoted in mechanics and design, materials and functions, and assembly methods. Notable progress is in the deployment of functional materials such as single-crystal silicon, shape memory polymers, energy-storage materials, and graphene into origami architectures. Specific applications of origami devices include foldable lithium-ion batteries, paper-based optoelectronics, electronics eyes, and others. More recent work demonstrates that these and related methods for assembling planar materials into 3D structures can exploit sophisticated 2D fabrication technologies and thin film materials from the electronics/optoelectronics industries, to yield functional systems in 3D designs that were previously unachievable. In this way, the techniques of origami can enable many classes of nontraditional devices with the potential to open up opportunities for unusual 3D flexible electronics. Merging origami with soft electronics has been an interesting approach to innovative multifunctional, shape-transformative devices and structures.

In this presentation, I will show our work on foldable and deployable multifunctional origami made from advanced optoelectronic materials for multimodal environmental sensing. I will first present the design and fabrication methods that enable foldable and deployable origami optoelectronics including strain sensors, temperature sensors, micro-heaters, UV detectors, humidity sensors, and vibration sensors.  As an example, I will present a classic crane-like 3D system integrated with the devices above. I will also show the measured environmental signals from those sensor in 2D and folded 3D states. Results indicate that those sensors remain intact. Furthermore, I will show origami systems that can be folded from flat 2D configuration to another smaller 2D shape (flat-foldable). Typical examples are letter folding and fan-like folding. I will use these two examples to demonstrate the capability of our approach to achieve highly compact electronics. In addition, I will present origami systems that can be folded from 2D configuration to 3D shape, which can be changed to another 3D shape. Typical examples are Miura-ori, Kresling, and Pellegrino-Guest origami patterns. I will present foldable and deployable origami electronics based on those structural concepts. Detailed mechanics studies enable the origami-based systems discussed above. In my talk I will present the mechanics principles of those foldable and deployable soft electronic 

Presenting Author: Xin Ning The Pennsylvania State University

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