Qiang Che, Sai Sun, Jie Hou, Xin Fu, Yu Chen, Bin Zhang
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引用次数: 0
摘要
用有机聚合物对黑磷(BP)进行表面共价改性是增强其稳定性和调整其电子特性的一种很有前途的策略。尽管具有这种潜力,但通过合适的聚合物结构、接枝途径和聚合技术开发记忆材料仍具有挑战性。在本研究中,通过在 4-aminobenzene 改性的 BPNS 表面原位聚合苯胺,成功制备了具有氧化还原功能的聚苯胺(PANI)共价接枝黑磷纳米片(BPNS)。PANI 涂层可保护 BP 免受氧气和水的直接侵蚀,并赋予该材料模拟记忆特性,即在有限的电压扫描范围内具有连续可调的电阻。在更宽的电压扫描范围内,Al/PANI-g-BPNS/ITO 器件表现出典型的双稳态数字忆阻器特性。在单个器件中集成数字和模拟忆阻器功能为开发高密度、多功能电子元件铺平了道路。
Redox‐Active Polyaniline Covalently grafted Black Phosphorus Nanosheets for Integrated Digital‐Analogue Memristors
Surface covalent modification of black phosphorus (BP) with organic polymers represents a promising strategy to enhance its stability and tailor its electronic properties. Despite this potential, developing memristive materials through suitable polymer structures, grafting pathways, and polymerization techniques remains challenging. In this study, polyaniline (PANI)‐covalently grafted black phosphorus nanosheets (BPNS) are successfully prepared with redox functionalities via the in situ polymerization of aniline on the surface of 4‐aminobenzene‐modified BPNS. The PANI coating protects the BP from direct exposure to oxygen and water, and it endows the material with analog memristive properties, characterized by a continuously adjustable resistance within a limited voltage scan range. When subjected to a broader voltage scan, the Al/PANI‐g‐BPNS/ITO device demonstrates a typical bistable digital memristive behavior. The integration of both digital and analog memristive functionalities in a single device paves the way for the development of high‐density, multifunctional electronic components.
期刊介绍:
Macromolecular Rapid Communications publishes original research in polymer science, ranging from chemistry and physics of polymers to polymers in materials science and life sciences.