NER: Nanoscale Organic Spintronics

NER：纳米级有机自旋电子学

• 批准号: 0608854
• 负责人: Marc Cahay
• 金额: $ 10万
• 依托单位: University of Cincinnati Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0608854&HistoricalAwards=false
• 关键词: NER; Nanoscale; Organic; Spintronics

The objective of this research is to investigate nanoscale organic spintronics and organic opto-spintronics based on n-conjugated polymers. By injecting spin polarized electrons and holes into self assembled heterolayered organic nanowires using magnetically aligned ferromagnetic contacts, it will be possible to suppress the non-emissive triplet electron hole recombination and promote the singlet electron hole recombination. This will increase quantum efficiency and produce bright organic light emitting nanodiodes. Our recent work has demonstrated exceptionally long spin relaxation times in n-conjugated polymers. This is promising for the development of nanowire based organic magnetic random access memory based on spin valves. Since the memory devices will be nanowires with a density 1011 cm-2, extremely high density memory is feasible.The intellectual merit of this work consists of elucidating spin transport in organics, providing critical understanding of spin relaxation modes, and building the framework necessary for the realization of nanoscale organic opto-spintronics.The broad impact will be the possible realization of spin-enhanced bright organic light emitting diodes. These inexpensive light sources will be compatible with flexible substrates and will be produced by simple beaker electrochemistry. It is anticipated that there is a significant demand for these products. An additional outcome will be organic based nanowire magnetic random access memory elements which are non-volatile. Graduate students trained in this program will be valuable assets in the emerging marketplace.

这项研究的目的是研究基于N偶联聚合物的纳米级有机旋转和有机光旋转。通过将自旋极化电子和孔注入磁对齐的有机纳米线中，使用磁对齐的铁磁触点，可以抑制非复杂性的三胞胎电子重组并促进Singlet电子重组。这将提高量子效率并产生明亮的有机光发射纳米二极管。我们最近的工作表明，在N共轭聚合物中，自旋松弛时间非常长。这对于基于旋转阀的基于纳米线的有机磁随机访问记忆的开发是有希望的。由于记忆设备将是具有密度1011 cm-2的纳米线，因此非常高的密度记忆是可行的。这项工作的智力优点包括阐明有机物中的旋转运输，提供对旋转放松模式的批判性理解，并构建纳米级有机旋转的框架所必需的框架，可以实现宽泛的影响。这些廉价的光源将与柔性基材兼容，并将由简单的烧杯电化学产生。预计对这些产品的需求很大。额外的结果将是非挥发性的基于有机的纳米线磁随机访问记忆元件。接受该计划的培训的研究生将是新兴市场的宝贵资产。