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http://dx.doi.org/10.1093/nsr/nwac101 | DOI Listing |
Adv Mater
December 2024
Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
The development of efficient color conversion layers for μ-LED technology faces significant challenges owing to the limitations of materials that require binders. Binders are typically used to ensure uniform film formation in color-conversion layers, but they often cause optical losses, increase layer thickness, and introduce long-term stability issues. To address the limitations of materials requiring binders, cyclopropyltriphenylphosphonium manganese tetrabromide (CPTPMnBr) is synthesized, a novel lead-free metal halide.
View Article and Find Full Text PDFSmall
December 2024
College of Materials Science and Engineering, Sichuan University, Chengdu, 610064, China.
Piezoelectric materials are increasingly used in portable smart electronics and Internet of Things sensors. Among them, piezoelectric macro fiber composites (MFCs) have attracted much attention due to their architectural simplicity, scalability, and high-power density. However, most MFCs currently use toxic lead-based piezoelectric materials, hindering their applications for bio-friendly intelligent electronics.
View Article and Find Full Text PDFChemistry
December 2024
East China University of Science and Technology, School of Materials Science and Engineering, meilong Road, 200237, shanghai, CHINA.
Perovskite-based photodetectors (PDs) are broadly utilized in optical communication, non-destructive testing, and smart wearable devices due to their ability to convert light into electrical signals. However, toxicity and instability hold back their mass production and commercialization. The lead-free Cs2AgBiBr6 double perovskite film, promised to be an alternative, is fabricated by electrophoretic deposition (EPD), which compromises film quality.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2024
College of Science, Inner Mongolia University of Technology, Hohhot 010051, China.
Relaxor ferroelectric film capacitors exhibit high power density with ultra-fast charge and discharge rates, making them highly advantageous for consumer electronics and advanced pulse power supplies. The Aurivillius-phase bismuth layered ferroelectric films can effectively achieve a high breakdown electric field due to their unique insulating layer ((BiO) layer)). However, designing and fabricating Aurivillius-phase bismuth layer relaxor ferroelectric films with optimal energy storage characteristics is challenging due to their inherently stable ferroelectric properties.
View Article and Find Full Text PDFAdv Mater
December 2024
Institute for Superconducting and Electronic Materials, Faculty of Engineering and Information Sciences, University of Wollongong, Innovation Campus, North Wollongong, NSW, 2500, Australia.
Piezoelectric micromachined ultrasound transducers (pMUTs), especially those using lead-free materials, are crucial next-generation microdevices for precise actuation and sensing, driving advancements in medical, industrial, and environmental applications. Bismuth ferrite (BiFeO) is emerging as a promising lead-free piezoelectric material to replace Pb(Zr,Ti)O in pMUTs. Despite its potential, the integration of BiFeO thin films into pMUTs has been hindered by poling issues.
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