激子量子电池的分子三重态及其他亚稳态
Molecular triplets and other metastable states for excitonic quantum batteries
浏览论文内容
中文总结 AI 辅助
本文综述了激子量子电池中克服荧光分子辐射衰减以延长存储时间的三种机制，并展望了亚稳态在相关室温及相干器件中的应用前景。
中文摘要 AI 辅助
基于嵌入光学微腔的有机荧光分子的激子量子电池，为研究能量存储中的集体效应及开发相关应用提供了室温平台。近期实验提供了超吸收的证据，超吸收是有机分子光吸收率的集体增强效应，可实现可扩展的功率密度，但同时也凸显了荧光分子快速辐射衰减带来的挑战，该衰减限制了能量存储寿命。当前克服这一权衡的策略聚焦于控制吸收流形与能量存储流形之间的耦合。本文综述了该设计原理的三种实现方式：将能量从光激发态转移至长寿命暗三重态、通过单重态激子裂变生成三重态对及更高自旋态、形成电荷分离态。我们从理论和实验角度讨论了每种机制，尤其关注近期将存储时间延长数个数量级的器件实现方案。最后，我们对亚稳态在相干及室温实现（从中性原子阵列到脉泽和色心）中的作用给出跨平台展望。
英文摘要
Excitonic quantum batteries, based on organic fluorescent molecules embedded in optical microcavities, offer a room-temperature platform for studying collective effects in energy storage and developing applications. Recent experiments have offered evidence of superabsorption, a collective enhancement to the light absorption rate of organic molecules which leads to a scalable power density. However, they have also highlighted the challenge posed by rapid radiative decay of fluorescent molecules, which limits the energy storage lifetime. Current strategies to overcome this trade-off focus on controlling the coupling between the absorbing manifold and that used for energy storage. In this chapter, we review three implementations of this design principle: transferring energy from optically excited states to long-lived dark triplet states, generating triplet pairs and higher-spin states through singlet exciton fission, and forming charge-separated states. We discuss each mechanism from both theoretical and experimental perspectives, with particular emphasis on recent device implementations that have extended storage times by several orders of magnitude. We conclude with a cross-platform outlook on the role of metastable states across coherent and room-temperature implementations, from neutral atom arrays to masers and colour centres.
