4D Printing of Ultrastretchable Magnetoactive Soft Material Architectures for Soft Actuators

Wajahat, Muhammad; Kim, Je Hyeong; Kim, Jung Hyun; Jung, Im Doo; Pyo, Jaeyeon; Seol, Seung Kwon

doi:10.1021/acsami.3c12173

ACS Appl. Mater. Interfaces

2023

DOI: 10.1021/acsami.3c12173

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4D Printing of Ultrastretchable Magnetoactive Soft Material Architectures for Soft Actuators

Muhammad Wajahat,

Je Hyeong Kim,

Jung Hyun Kim

et al.

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2024

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Cited by 2 publications

References 64 publications

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3D Printing of Luminescent Perovskite Quantum Dot–Polymer Architectures

Jeon,

Wajahat,

Park

et al. 2024

Adv Funct Materials

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Organic–inorganic perovskite quantum dot (PQD)–polymer composites are emerging optoelectronic materials with exceptional properties that are promising widespread application in next‐generation electronics. Advances in the utilization of these materials depend on the development of suitable fabrication techniques to create 3D architectures composed of PQD–polymer for sophisticated optoelectronics. This study introduces a straightforward and effective method for producing 3D architectures of PQD‐encapsulated high‐performance composites (PQD‐HPCs) through direct‐ink writing (DIW). This method employs an ink composed of prefabricated PQDs and hydroxypropyl cellulose (HPC) in dichloromethane (DCM). HPC, an appropriate organic‐soluble polymer, exhibits optical transparency in the highly volatile DCM and enables the formulation of a stable, room‐temperature extrudable ink. The architectures, which are printed by adjusting the halide ratios (Cl, Br, and I) for the compositions of CH3NH3PbBr1.5I1.5, CH3NH3PbBr3, and CH3NH3PbBr1.5Cl1.5, exhibit single peak photoluminescence emissions of red (639 nm), green (515 nm), and blue (467 nm). Optimizing the printing parameters of DIW enables the precise fabrication of programmed and complex PQD‐HPC 3D architectures for advanced anti‐counterfeiting and information encryption. This method has the potential to enhance the functionality of modern printed electronic devices significantly.

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3D Printing of Luminescent Perovskite Quantum Dot–Polymer Architectures

Jeon,

Wajahat,

Park

et al. 2024

Adv Funct Materials

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AC/DC Magnetic Field Sensing Based on a Piezoelectric Polymer and a Fully Printed Planar Spiral Coil

Fernández Maestu,

Pereira,

Lanceros-Méndez

2024

ACS Appl. Mater. Interfaces

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Additive manufacturing (AM) is emerging as an eco-friendly method for minimizing waste, as the demand for responsive materials in IoT and Industry 4.0 is on the rise. Magnetoactive composites, which are manufactured through AM, facilitate nonintrusive remote sensing and actuation. Printed magnetoelectric composites are an innovative method that utilizes the synergies between magnetic and electric properties. The study of magnetoelectric effects, including the recently validated piezoinductive effect, demonstrates the generation of electric voltage through external AC and DC magnetic fields. This shift in magnetic sensors, utilizing piezoinductive effect of the piezoelectric polymer poly(vinylidene fluoride), PVDF, eliminates the need for magnetic fillers in printed devices, aligning with sustainability principles, essential for the deployment of IoT and Industry 4.0. The achieved sensitivity surpasses other studies by 100 times, showcasing linear outputs for both applied AC and DC magnetic fields. Additionally, the sensor capitalizes on the linear phase shift of the generated signal with an applied DC magnetic field, an unprecedented effect. Thus, this work introduces a remarkable magnetoactive device with a sensitivity of S T = 95.1 ± 0.9 μV Oe–1 mT–1, a significantly improved performance compared to magnetoelectric devices using polymer composites. As a functional proof of concept of the developed system, a magnetic position sensor has been demonstrated.

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4D Printing of Ultrastretchable Magnetoactive Soft Material Architectures for Soft Actuators

Cited by 2 publications

References 64 publications

3D Printing of Luminescent Perovskite Quantum Dot–Polymer Architectures

3D Printing of Luminescent Perovskite Quantum Dot–Polymer Architectures

AC/DC Magnetic Field Sensing Based on a Piezoelectric Polymer and a Fully Printed Planar Spiral Coil

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