Current Issue

2024, Volume 3,  Issue 1

Negative capacitance effect plays an important role in solving the tyranny of electronic Boltzmann as well as realizing ultra-fast and low-power operation of transistors. Among the materials with negative capacitance effects, CMOS-compatible hafnium-based ferroelectric materials have received particular attention both technically and academically. In this study, we prepared high-quality hafnium-based ferroelectric/antiferroelectric thin films with a single out-of-plane crystal orientation, which were revealed to have significantly stable negative capacitance effects by capacitance enhancement phenomena, with capacitance values of -17.41 and -27.64 pF, respectively. This work is beneficial for further promoting the application of hafnium-based ferroelectric materials in the field of microelectronics and energy storage.


Negative capacitance effect


DOI: 10.1088/2752-5724/ad0524

Woven thermoelectric materials and devices enable direct conversion between thermal and electrical energy. With their lightweight, compact, noise-free operation, and precise reliability, they exhibit tremendous potential across various applications, particularly in the realm of wearable technology. Serving as a core component in devices, woven thermoelectric materials offer flexibility, wearability, and adjustability, making them capable of harnessing waste heat from irregular sources, such as the temperature differential between human skin and the environment, to sustainably power wearable devices. Therefore, further enhancing the thermoelectric performance of woven materials and optimizing device design are crucial.


Weavable Thermoelectric Materials and Devices for Wearable Electronics


DOI: 10.1088/2752-5724/ad0ca9

Letter
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Observation of stabilized negative capacitance effect in hafnium-based ferroic films
Topical Review
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Recycling of solid-state batteries—challenge and opportunity for a circular economy?
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Research progress on the design of electrolyte additives and their functions for zinc-ion batteries
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Weavable thermoelectrics: advances, controversies, and future developments
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Low-dimensional van der Waals materials for linear-polarization-sensitive photodetection: materials, polarizing strategies and applications
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Emerging multimodal memristors for biorealistic neuromorphic applications
Perspective
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Origin of off-centering effect and the influence on heat transport in thermoelectrics
Paper
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Towards an enhanced understanding of the particle size effect on conversion/alloying lithium-ion anodes
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Mixed iridium-nickel oxides supported on antimony-doped tin oxide as highly efficient and stable acidic oxygen evolution catalysts
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Flexible UV detectors based on in-situ hydrogen doped amorphous Ga2O3 with high photo-to-dark current ratio