Close-loop recyclable and flexible halide perovskite@wool keratin sensor with piezoelectric property

Zhou, Yingying; Gao, Dangge; Lyu, Bin; Cheng, Zheng; Tang, Litao; Guo, Shihao; Ma, Jianzhong

doi:10.1016/j.jechem.2023.05.005

Cited by 9 publications

(3 citation statements)

References 41 publications

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“…Pressing the left end produces the same voltage signal, but with the electrons flowing in the opposite direction, as shown in Figure c. Compared to other self-powered materials that generate AC electrical signals, , hydrogels do not require rectification.…”

Section: Resultsmentioning

confidence: 99%

“…When the right end of the hydrogel is compressed, the cations at the compressed position move, and the diffusion around them manifests as ionic flow. The electronegativity matrix is concentrated at the compression Compared to other self-powered materials that generate AC electrical signals, 23,55 hydrogels do not require rectification. The self-powered sensing performance of the CPAM-IP6 30 hydrogels was tested to investigate the potential difference caused by the transient change in the concentration of H + ions in the hydrogels under external forces.…”

Section: Mechanical Properties Of the Cpam-ip6 Hydrogelsmentioning

confidence: 99%

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Force-Induced Single-Ion Transport in Porous Polyelectrolyte Hydrogels for Dual-Mode Output Sensing

Sheng,

Tang,

Yao

et al. 2024

ACS Appl. Polym. Mater.

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Ionic hydrogels can change the number of transient ions at low pressure to promote ion migration, similar to the sensory mechanism of human skin. Reported ionic hydrogel sensors have multiple ion migration characteristics, which is not conducive to the precise regulation of ion transport. In this paper, a double cross-linked anionic polyelectrolyte hydrogel (CPAM-IP6) with negative channels and internal cations was prepared with the main components of methacrylic acid (MAA), acrylic acid (AA), sodium carboxymethylcellulose (CMC), and inositol hexaphosphate (IP6). The prepared hydrogels show a unique interconnected porous structure due to the regular arrangement of chemical and hydrogen bonds. IP6 has high hydrogen bonding density, which provides the hydrogels with tunable mechanical properties and a large amount of dissociable proton H + . Optimized hydrogels exhibit excellent electrical conductivity (∼22 mS/cm), high tensile strength (∼0.56 MPa), and high strain at break (∼1030%). It has a modulus similar to that of human skin (E = 0.09−0.22 MPa) and has strain-hardening properties. In addition, the resistance changes and voltage signals of the hydrogel under different force modes (tension and compression) are monitored by dual-mode sensing with a high sensitivity and stability. Hydrogels are expected to be used for motion monitoring and energy collection and have broad application prospects in intelligent medical treatment.

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Section: Resultsmentioning

confidence: 99%

Section: Mechanical Properties Of the Cpam-ip6 Hydrogelsmentioning

confidence: 99%

Force-Induced Single-Ion Transport in Porous Polyelectrolyte Hydrogels for Dual-Mode Output Sensing

Sheng,

Tang,

Yao

et al. 2024

ACS Appl. Polym. Mater.

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show abstract

“…Zhou et al [73] designed and fabricated a recyclable wool keratin-lead halide perovskite sensor with outstanding piezoelectric properties (figure 7(a)). Wool keratin-CsPbBr 3 is first synthesized by in situ growth method, followed by passivation and coating using wool keratin as a polydentate ligand, which stabilized the lead halide chalcogenide material.…”

Section: Fabric Typementioning

confidence: 99%

Recent advances in piezoelectric and triboelectric self-powered sensors for human–machine interface applications

Du,

Li,

Qiu

et al. 2024

J. Micromech. Microeng.

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The burgeoning internet of things (IoTs) and artificial intelligence (AI) technologies have prospered a variety of emerging applications. Human-machine interfaces (HMIs), for instance, enables users with intuitive, efficient, and friendly way to interact with machines, capable of instant information acquisition, processing, communication, and feedback, etc. These features require ultra-compact and high-performance transducers, and therefore self-powered sensors have become the key underlying technology for HMI applications. This review focuses on the piezoelectric, triboelectric, and hybrid self-powered sensors with particular attention to their microstructures and fabrication methods, showing that both traditional microfabrication and emerging fabrication methods like three-dimensional (3D) printing, electrospinning, and braiding have contributed to the planar, array, porous, fabric, and composite type self-powered sensors. Moreover, the integration method of piezoelectric and triboelectric sensor arrays (TSAs) is investigated. The crosstalk issue is highlighted, i.e. the signal interference between adjacent sensing units, and current solutions such as array design optimization, signal processing improvement, and material innovation to reduce crosstalk sensitivity have been reviewed through specific examples. Three categories of HMI applications have been outlined, including intelligent interaction, robotics, and human monitoring, with detailed explanations of how the self-powered sensors support these HMI applications. Through discussion of challenges and prospects, it is proposed that further coordinating the design and fabrication of micro devices with HMIs will potentially boost the intelligent application with even higher level of diversification, convenience, and interconnectivity.

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Structural, optical, and dielectric study of hydrothermally synthesized barium-doped PbTiO3 (0 ≤ x ≤ 0.9) perovskite materials

Sakout,

Ghadraoui,

Lahrar

et al. 2023

Appl. Phys. A

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Close-loop recyclable and flexible halide perovskite@wool keratin sensor with piezoelectric property

Cited by 9 publications

References 41 publications

Force-Induced Single-Ion Transport in Porous Polyelectrolyte Hydrogels for Dual-Mode Output Sensing

Force-Induced Single-Ion Transport in Porous Polyelectrolyte Hydrogels for Dual-Mode Output Sensing

Recent advances in piezoelectric and triboelectric self-powered sensors for human–machine interface applications

Structural, optical, and dielectric study of hydrothermally synthesized barium-doped PbTiO3 (0 ≤ x ≤ 0.9) perovskite materials

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