在单个viologen中,电色和双极非易失性记忆的共存
Ranjeev Kumar Parashar1, Suchita Kandpal2, Nila Pal1,3
1Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India.
ACS applied materials & interfaces
|October 26, 2023
概括
这项研究引入了一种能够实现电色和电阻随机访问记忆功能的新型viologen. 这一突破使多功能光电子设备具有更高的性能和更低的功耗.
科学领域:
- 有机电子学有机电子学
- 材料科学是一种材料科学.
- 设备物理 设备物理
背景情况:
- 维奥基因是用于电色器件 (ECD) 的氧化还原活性化合物.
- 在单一材料中整合电色和记忆功能是一个未被探索的领域.
研究的目的:
- 报告在一个新的viologen.同时电色和电阻随机存储器 (RRAM) 功能.
- 研究这些双重功能的性能和机制,用于先进的光电子应用.
主要方法:
- 使用BzV2+2PF6和聚乙烯 (P3HT) 来制造电子染色器.
- 使用p+2-Si/BzV2+2PF6/Al结构的RRAM设备的构建.
- 电色特性 (着色效率,切换时间,稳定性) 和内存特性 (开/关比,非挥发性,WRE函数) 的表征.
主要成果:
- 这种新型的viologen表现出具有高颜色效率 (1150 ± 10 cm2 C-1) 和次秒切换的双态电色态行为.
- 电电器在低偏差 (±1.5V) 和低功耗下运行.
- RRAM设备显示出高的ON/OFF比 (∼103),双极,非挥发性特征,并通过Poole-Frenkel模型在低过渡电压 (±1.7V) 上运行.
结论:
- 开发的viologen成功地集成了电色和RRAM功能.
- 这种双重功能为多功能,智能,可穿戴和灵活的光电子设备铺平了道路.
- 这些发现有助于推进低成本,高性能电子材料的发展.
相关概念视频
Bipolar Junction Transistor
783
Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational...
783
Electrochemistry: Overview
2.0K
Electrochemistry is the branch of chemistry that studies the relationship between electrical quantities and chemical reactions, particularly oxidation and reduction. Oxidation is the loss of electrons from a substance, whereas reduction refers to the gain of electrons. A substance with a strong electron affinity is called an oxidizing agent (oxidant), and a reducing agent (reductant) is a species that donates electrons. Oxidation and reduction processes are pivotal to electrochemical reactions,...
2.0K
Voltaic/Galvanic Cells
57.4K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
57.4K
Voltammetry: Overview
1.8K
Voltammetry is an electroanalytical technique in which the current flowing through an electrochemical cell is measured as a function of applied potential, typically under conditions of concentration polarization. The technique provides valuable information about redox-active species, and the current response is plotted as a voltammogram.
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
1.8K
Potentiometry: Membrane Electrodes
596
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
596
Voltammetric Techniques: Cyclic Voltammetry
496
Cyclic voltammetry (CV) is an electrochemical technique used to investigate the redox properties of a chemical species. It involves measuring the current response of an electrochemical cell as a function of the applied potential. The setup for cyclic voltammetry typically consists of a working electrode, a reference electrode, and a counter electrode—all immersed in an electrolyte solution. The working electrode is where the redox reaction of interest occurs, while the reference electrode...
496


