Issue 10, 2025

Rational introduction of functional spacers to realize a novel organometallic polymer with multilevel memory behaviors

Abstract

Multilevel resistive random access memory (ReRAM) has been well researched recently to meet the ever-growing data-storage requirements. However, the proposed mechanisms such as charge trap and charge transfer are highly dependent on molecular stacking regularity. Thus, improving the molecular stacking styles is a scientific issue that needs to be solved urgently. In this work, a modified organometallic conjugated polymer P(DTPDI-BDT-DPFc) was rationally designed with the introduction of 1,1′-diphenyl-substituted ferrocene (DPFc) and a large conjugated spacer of benzo[1,2-b:4,5-b′]dithiophene (BDT). UV-vis spectroscopy confirmed the increased main-chain conjugation and the improved coplanar backbone of this new-made organometallic polymer. XRD and GIWAXS measurement showed the regioregularity aggregation and a preferential face-on orientation of P(DTPDI-BDT-DPFc) backbone relative to the substrate. The following P(DTPDI-BDT-DPFc) devices indeed exhibit a specific, stable, and rewritable multilevel memory performance induced by the successive oxidation of BDT and Fc units. This work provides a reliable strategy for rationally introducing desirable functional spacers to realize excellent optoelectronic performance.

Graphical abstract: Rational introduction of functional spacers to realize a novel organometallic polymer with multilevel memory behaviors

Supplementary files

Article information

Article type
Research Article
Submitted
14 Feb 2025
Accepted
27 Mar 2025
First published
28 Mar 2025

Mater. Chem. Front., 2025,9, 1534-1546

Rational introduction of functional spacers to realize a novel organometallic polymer with multilevel memory behaviors

F. Zhou, H. Liu, W. Luo, H. Dong, J. Zeng, Y. Li, Y. Yang, G. Zhang and Q. Zhang, Mater. Chem. Front., 2025, 9, 1534 DOI: 10.1039/D5QM00138B

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