在混合有机-无机矿半导体中,奇拉性诱导的旋转选择性
Yifan Dong1, Matthew P Hautzinger1, Md Azimul Haque1
1National Renewable Energy Laboratory, Golden, Colorado, USA; email: yifan.dong@nrel.gov, matthew.hautzinger@nrel.gov, mdazimul.haque@nrel.gov, matt.beard@nrel.gov.
Annual review of physical chemistry
|February 14, 2025
概括
混合矿中性诱导的旋转选择性 (CISS) 允许在没有磁铁的情况下控制旋转. 本综述介绍了这些可调整的性半导体,用于新型电子应用.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
背景情况:
- 基拉性诱导的自旋选择性 (CISS) 效应在室温下在基拉性介质中产生自旋极化电流.
- 在各种性材料,特别是有机分子中观察到CISS.
- 嵌合体混合有机-无机矿结合了无机半导体特性与嵌合体有机成分.
研究的目的:
- 引入合混合有机-无机矿作为一种可调节半导体的新型类别.
- 为了突出CISS效应在这些材料中用于旋转控制的应用.
- 在这些系统中提供CISS演示和旋转控制策略的概述.
主要方法:
- 对CISS效应和奇拉混合矿的现有文献的综述.
- 讨论关于在奇拉系统中控制自旋两极化的基本原理.
- 合成和表征合混合有机-无机矿 (如该领域所暗示的那样).
主要成果:
- 化混合矿表现出可调节的电子特性,其来源于其无机框架和有机分子的性.
- 在这些混合材料中,CISS效应得到了有效的证明,使自旋极化电荷电流成为可能.
- 有机元件的等离子纯度决定了产生的半导体中的自旋选择性.
结论:
- 基拉式混合有机-无机矿由于可调节性质和CISS效应,为旋转器件提供了一个有前途的平台.
- 和半导体功能的整合为先进的电子技术开辟了新的途径.
- 这些材料在开发非磁性旋转控制机制方面取得了重大进展.
相关概念视频
02:05Prochirality
3.8K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
3.8K
02:30Chirality at Nitrogen, Phosphorus, and Sulfur
5.7K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.7K
02:30Chirality in Nature
12.7K
Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
12.7K
02:52Stereoisomerism
11.7K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
11.7K
02:25Chirality
22.9K
Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
22.9K
02:35Regioselectivity of Electrophilic Additions-Peroxide Effect
8.4K
In the presence of organic peroxides, the addition of hydrogen bromide to an alkene yields the isomer that is not predicted by Markovnikov’s rule. For example, the addition of hydrogen bromide to 2-methylpropene in the presence of peroxides gives 1-bromo-2-methylpropane. This addition reaction proceeds via a free radical mechanism, which reverses the regioselectivity. The free radical reaction mechanism involves three stages: initiation, propagation, and termination.
8.4K