可治愈的高分子聚合物作为有机金属
Joseph J Armao1, Mounir Maaloum, Thomas Ellis
1SAMS research group, University of Strasbourg, Institut Charles Sadron , CNRS, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France.
Journal of the American Chemical Society
|July 24, 2014
概括
研究人员开发了一种新的1D超分子聚合物,表现出金属行为. 这种自组装材料可以修复结构缺陷,提高先进有机电子产品的导电性.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 超分子化学 超分子化学
背景情况:
- 有机材料具有金属性质是打印纳米电路和大面积电子产品的关键.
- 在有机金属中实现高电子导电性往往需要高晶度,这阻碍了可加工性.
- 将金属特性与软自组装系统相结合是可取的,但需要无缺陷的格子.
研究的目的:
- 为了创建一个具有金属行为的一维超分子聚合物.
- 调查改善电子导电的缺陷修复机制.
- 为有机电子应用提供新的加工技术.
主要方法:
- 制造一个一维的超分子聚合物.
- 使用光诱导的穿越空间的电荷转移复合体.
- 观察超分子极子扩散以修复缺陷.
主要成果:
- 超分子聚合物由于高度连贯的域和非局部化的电子状态而表现出金属行为.
- 超分子极子的扩散有效地修复纳米线内的结构缺陷.
- 导电性能通过缺陷自我修复显著改善.
结论:
- 这项工作证明了可自组合的金属特性,推进了超分子化学和有机电子学.
- 该材料的自我修复性克服了传统有机金属的可加工性限制.
- 这种方法为开发可加工和耐缺陷的有机电子设备开辟了新的途径.
相关概念视频
Semiconductors
1.8K
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
1.8K
Properties of Organometallic Compounds
2.0K
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
2.0K
Anionic Chain-Growth Polymerization: Overview
1.8K
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
1.8K


