The Magnetic Modulation by the Valence Transition of Polyoxometalate DOI
Mingze Meng, Guidong Shi,

Ling-Ling Cheng

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1318, P. 139276 - 139276

Published: July 20, 2024

Language: Английский

Enhancing the performance of polyoxometalate-based memristors in harsh environments based on hydrogen bonding cooperative π-conjugation interaction DOI
Mingze Meng,

Yiqun Gao,

Yi‐Ping Chen

et al.

Inorganic Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Three water-soluble organic–inorganic hybridized POMs-based memristor are proposed. The introduction of organic ligands improves its performance. mechanism the device during high temperature operation was explored using 2D-COS-IR.

Language: Английский

Citations

0
Intermolecular Hydrogen‐Bond Stabilized 1D Pyrene‐Based Covalent Organic Framework for Advanced Memory Devices and Neuromorphic Computing DOI

Yuxing Huang,

Wanxiang Yang,

Pan‐Ke Zhou

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Abstract Covalent organic frameworks (COFs) have emerged as a compelling class of materials for active layers in memristors, yet the determinants their electrical properties and effective tuning strategies remain elusive. Herein, study unveils two novel pyrene‐based COFs (Py‐COFs)—the one‐dimensional (1D) H‐Py‐BT COF two‐dimensional (2D) Py‐BT COF—crafted with structural kinship divergent dimensionalities via tailored pyrene monomer connectivity. The effect dimensional disparities on memristive device performance image recognition precision is systematically investigated. Notably, 1D harnesses weak in‐plane interlayer hydrogen bonding interactions to enhance charge separation promote directional electron transport. This unique configuration enables devices fabricated (101 nm thick) deliver exceptional performance, evidenced by high ON/OFF current ratio (≈10 3.7 ) an accuracy 76%, outperforming those based 2D COF. These findings underscore pivotal role dimensionality molecular dictating functionality, offering valuable insights advancing COF‐based technologies.

Language: Английский

Citations

0
A Magnetic Regulation Strategy Based on the Valence Transition of Polyoxometalate DOI
Mingze Meng, Guidong Shi,

Ling-Ling Cheng

et al.

Published: Jan. 1, 2024

Literature investigation revealed a phenomenon that in polyoxometalates, the same cluster anions with different V4+/V5+ ratios. Three novel vanadoborates crown-shaped V12B32 cages were successfully synthesized, differing only their countercations. X-ray photoelectron spectroscopy (XPS) and Bond Valence Sum (BVS) analyses distinct ratios (11:1, 10:2, 10:2) cage of three compounds. Structural indicated valence state are regulated by countercation. The magnetic properties these compounds examined using variable-temperature susceptibilities two-dimensional correlation infrared (2D-COS-IR) under perturbation. This approach elucidated origin variability properties, demonstrating vanadium ratio countercation significantly influence behaviour vanadoborates. ability to investigate mechanisms polyoxometalate is essential for exploring structure-activity relationship as well function. present study highlights effectiveness transition altering countercations, providing new avenue magnetically modulated materials.

Language: Английский

Citations

0
The Magnetic Modulation by the Valence Transition of Polyoxometalate DOI
Mingze Meng, Guidong Shi,

Ling-Ling Cheng

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1318, P. 139276 - 139276

Published: July 20, 2024

Language: Английский

Citations

0