Ultrafast bi-excitonic dynamics and annihilation in molecular and mesoscopic systems
EPJ Web of Conferences(2019)
摘要
We present 5th and 3rd order 2D spectra of a squarine trimer. Slowly decaying (tau = 0.8 ps) and intensity dependent features unique to the 5th order signal are attributed to exciton-exciton annihilation.
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关键词
ultrafast,mesoscopic systems,annihilation,dynamics,bi-excitonic
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