Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 133205 - 133205
Опубликована: Апрель 1, 2025
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер 34(16)
Опубликована: Янв. 4, 2024
Abstract Memristors have recently become powerful competitors toward artificial synapses and neuromorphic computation, arising from their structural electrical similarity to biological neurons. From the diversity of materials, numerous organic inorganic materials proven exhibit great potential in application memristors. Herein, this work focuses on a class memristors based frameworks (OFs) pay attention most advanced experimental demonstrations. First, typical device structures memristive switching mechanisms are introduced. Second, latest progress OFs‐based is comprehensively summarized, including metal‐organic (MOFs), covalent (COFs), hydrogen‐bonded (HOFs), as well applications data storage, synapses, devices. Finally, future challenges prospects deeply discussed.
Язык: Английский
Процитировано
36
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Янв. 5, 2024
Abstract The inherent structural flexibility and reversibility of non-covalent organic frameworks have enabled them to exhibit switchable multistate structures under external stimuli, providing great potential in the field resistive switching (RS), but not well explored yet. Herein, we report 0D+1D hydrogen-bonded polycatenation framework (HOF-FJU-52), exhibiting diverse reversible RS behaviors with high performance. Triggered by stimulus electrical E at room temperature, HOF-FJU-52 has excellent random-access memory (RRAM) behaviors, comparable state-of-the-art materials. When cooling down below 200 K, it was transferred write-once-read-many-times (WORM) behaviors. two on a single crystal device through temperature changes. mechanism this been deciphered atomic level detailed single-crystal X-ray diffraction analyses, demonstrating that dual-flexibility both asymmetric hydrogen bonded dimers within 0D loops infinite π–π stacking column between chains contribute structure transformations multi-states thus its dual
Язык: Английский
Процитировано
12
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(12)
Опубликована: Фев. 1, 2024
Abstract Hydrogen‐bonded organic frameworks (HOFs) have shown promise in various fields; however, the construction of HOF/polymer hybrid membranes that can maintain both structural and functional integrity remains challenging. In this study, we here fabricated a new HOF ( HOF‐50 ) with reserved polymerizable allyl group via charge‐assisted H‐bonds between carboxylate anion amidinium, subsequently copolymerized monomers to construct covalently bonded (polyHOF) membrane. The resulting polyHOF membrane not only exhibits customizable mechanical properties extreme stability, but also shows an exceptional ratiometric luminescent temperature‐sensing function very high sensitivity visibility even when lanthanide content is two orders magnitude lower than reported mixed‐lanthanide metal–organic (MOFs) lanthanide‐doped covalent (COFs). This orthogonal postsynthesis copolymerization strategy may provide general approach for preparing connected diverse applications.
Язык: Английский
Процитировано
12
Small, Год журнала: 2025, Номер unknown
Опубликована: Янв. 26, 2025
Abstract The integration of hydrogen‐bonded organic frameworks (HOFs) with flexible electronic technologies offers a promising strategy for monitoring detailed health information, owing to their inherent porosity, excellent biocompatibility, and tunable catalytic capabilities. However, application in wearable real‐time remains largely unexplored, primarily due the mechanical mismatch between traditionally fragile HOFs particles softness human skin. Herein, this study demonstrates an epidermal biosensor that maintains reliable sensing capability even under extreme deformation complex environmental conditions by integrating films wavy bioelectrodes. This ultrasensitive detection capabilities, limit 49.64 nM, accurately measures nutritional content sweat while conforming curved skin surfaces. sensor's performance is comparable those obtained using high‐performance liquid chromatography (HPLC). More strikingly, scratched can be regenerated through simple solvent rinsing process, enabling reuse fabrication new biosensors offering significant advantage over conventional materials. work has potential inspire development more devices, leveraging structural adaptability diversity personalized healthcare applications monitoring.
Язык: Английский
Процитировано
1
Advanced Materials, Год журнала: 2024, Номер 36(35)
Опубликована: Июль 6, 2024
Metal-organic frameworks (MOFs), characterized by tunable porosity, high surface area, and diverse chemical compositions, offer unique prospects for applications in optoelectronic devices. However, the prevailing research on thin-film devices utilizing MOFs has predominantly focused aspects such as information storage photosensitivity, often neglecting integration of advantages inherent both photonics electronics to enhance optical memory. This work demonstrates a light-mediated resistive memory device based highly oriented porphyrin-based film, which resistance state memristor is modulated light, realizing perception information. The shows excellent performance with wide light range 405-785 nm persistent photoconductivity phenomenon up 8.3 × 10
Язык: Английский
Процитировано
8
Chemical Reviews, Год журнала: 2024, Номер 124(16), С. 9733 - 9784
Опубликована: Июль 22, 2024
Neuromorphic computing and artificial intelligence hardware generally aims to emulate features found in biological neural circuit components enable the development of energy-efficient machines. In brain, ionic currents temporal concentration gradients control information flow storage. It is therefore interest examine materials devices for neuromorphic wherein electronic can propagate. Protons being mobile under an external electric field offers a compelling avenue facilitating functionalities synapses neurons. this review, we first highlight interesting analog protons as neurotransmitters various animals. We then discuss experimental approaches mechanisms proton doping classes inorganic organic proton-conducting advancement architectures. Since hydrogen among lightest elements, characterization solid matrix requires advanced techniques. review powerful synchrotron-based spectroscopic techniques characterizing well complementary scattering detect hydrogen. First-principles calculations are discussed they help provide understanding migration structure modification. Outstanding scientific challenges further our its use emerging electronics pointed out.
Язык: Английский
Процитировано
8
Sensors and Actuators B Chemical, Год журнала: 2024, Номер 410, С. 135702 - 135702
Опубликована: Март 28, 2024
Язык: Английский
Процитировано
7
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(17), С. 22217 - 22228
Опубликована: Апрель 19, 2024
Organic memristors as promising electronic units are attracting significant attention owing to their simplicity of molecular structure design. However, fabricating high-quality organic films via novel synthetic technologies and exploring unprecedented chemical structures achieve excellent memory performance in memristor devices highly challenging. In this work, we report a cathodic electropolymerization synthesize an ionic azulene-based memristive film (PPMAz-Py+Br–) under the molecular-potential redox coregulation. During process, electropositive pyridinium salts migrate cathode electric field, undergo reduction-coupling deprotonation reaction, polymerize into uniform with controllable thickness on electrode surface. The prepared Al/PPMAz-Py+Br–/ITO not only exhibit high ON/OFF ratio 1.8 × 103, stability, long retention, endurance wide range voltage scans, but also multilevel storage history-dependent performance. addition, can mimic important biosynaptic functions, such learning/forgetting function, synaptic enhancement/inhibition, paired-pulse facilitation/depression, spiking-rate-dependent plasticity. tunable performances attributed capture free electrons cations, migration aluminum ions (Al3+), form Al conductive filaments scans.
Язык: Английский
Процитировано
7
Angewandte Chemie, Год журнала: 2024, Номер 136(12)
Опубликована: Фев. 1, 2024
Abstract Hydrogen‐bonded organic frameworks (HOFs) have shown promise in various fields; however, the construction of HOF/polymer hybrid membranes that can maintain both structural and functional integrity remains challenging. In this study, we here fabricated a new HOF ( HOF‐50 ) with reserved polymerizable allyl group via charge‐assisted H‐bonds between carboxylate anion amidinium, subsequently copolymerized monomers to construct covalently bonded (polyHOF) membrane. The resulting polyHOF membrane not only exhibits customizable mechanical properties extreme stability, but also shows an exceptional ratiometric luminescent temperature‐sensing function very high sensitivity visibility even when lanthanide content is two orders magnitude lower than reported mixed‐lanthanide metal–organic (MOFs) lanthanide‐doped covalent (COFs). This orthogonal postsynthesis copolymerization strategy may provide general approach for preparing connected diverse applications.
Язык: Английский
Процитировано
6
Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(5), С. 113263 - 113263
Опубликована: Июнь 5, 2024
Язык: Английский
Процитировано
6