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Triplet-Pair States in Organic Semiconductors

机译：有机半导体中的三联网对状态

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摘要

Entanglement of states is one of the most surprising and counterintuitive consequences of quantum mechanics, with potent applications in cryptography and computing. In organic semiconductor materials, one particularly significant manifestation is the spin-entangled triplet-pair state, which consists of a pair of localized triplet excitons coupled into an overall spin-0, -1, or -2 configuration. The most widely analyzed of these is the spin-0 pair, denoted 1(TT), which was initially invoked in the 1960s to explain delayed fluorescence in acene films. It is considered an essential gateway state for triplet-triplet annihilation and the reverse process, singlet fission, enabling interconversion between one singlet and two triplet excitons without any change in overall spin. This state has returned to the forefront of organic materials research in recent years, thanks both to its central role in the resurgent field of singlet fission and to its implication in a host of exotic new photophysical behaviors. Here we review the properties of triplet-pair states, from first principles to recent experimental results.
机译：各国的纠缠是量子力学的最令人惊讶和逆情的后果之一，在密码学和计算中有效应用。在有机半导体材料中，一个特别显着的表现是旋转缠结的三重态 - 对状态，其由一对偶联的三重态激子组成，其耦合成总旋转-0，-1或-2构型。这些最广泛分析的是Spin-0对，表示1（TT），最初在20世纪60年代中调用，以解释丙烯膜中的延迟荧光。它被认为是三联 - 三联湮灭的必要网关状态和反向过程，单次单态和两个三重态激子之间的相互互连而没有整体旋转的任何变化。近年来，这种国家返回了有机材料研究的最前沿，谢谢既归功于其在季克朗特裂变中的核心作用以及其在异国情调的新型光物理行为中的含义。在这里，我们从第一个原则到最近的实验结果，审查三联网对状态的属性。

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