Tunneling Electrons Triggered Energy Transfer between Coherently Coupled Donor-Acceptor Molecules  

隧穿电子触发的相干耦合供体受体分子间的能量转移

作　　者：Huifang Wang 王慧芳(日本筑波大学数理物质系,筑波305-8573)

机构地区：[1]Graduate School of Pure and Applied Sciences,University of Tsukuba,Tsukuba 305-8573,Japan

出　　处：《Chinese Journal of Chemical Physics》2024年第4期497-504,I0093,I0094,共10页化学物理学报（英文）

基　　金：supported by the State Scholarship Fund organized by the China Scholarship Council(CSC).

摘　　要：Energy transfer is ubiquitous in natural and artificial lightharvesting systems,and coherent energy transfer,a highly efficient energy transfer process,has been accepted to play a vital role in such systems.However,the energy oscillation of coherent energy transfer is exceedingly difficult to capture because of its evanescence due to the interaction with a thermal environment.Here a microscopic quantum model is used to study the time evolution of electrons triggered energy transfer between coherently coupled donoracceptor molecules in scanning tunneling microscope(STM).A series of topics in the plasmonic nanocavity(PNC)coupled donor-acceptor molecules system are discussed,including resonant and nonresonant coherent energy transfer,dephasing assisted energy transfer,PNC coupling strength dependent energy transfer,Fano resonance of coherently coupled donor-acceptor molecules,and polariton-mediated energy transfer.能量转移在自然和人工光捕获体系中是普遍存在的.相干能量转移,作为一种高效能量转移过程,被认为在这些体系中发挥了重要的作用:然而,由于与周围热环境的相互作用,相干能量转移的能量振荡过程很容易瞬间消散,从而非常难以被捕捉到.本文利用一个微观量子模型研究了由扫描隧道显微镜隧穿电子触发的相干耦合供体-受体分子间的能量转移.并讨论了在这个等离激元纳腔耦合供体-受体分子体系中的一系列结果,包括共振与非共振相干能量转移,失相协助的能量转移,等离激元纳腔耦合强度依赖的能量转移,相干耦合供体-受体分子的法诺共振,以及极化子介导的能量转移.

关 键 词：Energy transfer Coherent energy transfer Scanning tunneling microcopy induced luminescence Plasmonic nanocavity Quantum master equation DEPHASING Fano resonance Polariton-mediated energy transfer 

分 类 号：O413[理学—理论物理]