Excited-State Dynamics of Pentacene Derivatives with Stable Radical Substituents
Excited-State Dynamics of Pentacene Derivatives with Stable Radical Substituents
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DOI：
10.1002/anie.201310291
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发表时间：
2014-06-01
影响因子：
16.6
通讯作者：
Teki, Yoshio
中科院分区：
文献类型：
--
作者：
Ito, Akitaka;Shimizu, Akihiro;Teki, Yoshio
通过瞬态吸收测量，详细评价了具有稳定自由基取代基的并五苯衍生物的激发态动力学。衍生物显示，通过增强系统间交叉和单线态裂变的贡献，在光激发单线态的并五烯部分超快地形成了三重态激发态。对瞬态吸收数据进行了详细的动力学分析，以量化衍生物的激发态特性。
The excited-state dynamics of pentacene derivatives with stable radical substituents were evaluated in detail through transient absorption measurements. The derivatives showed ultrafast formation of triplet excited state(s) in the pentacene moiety from a photoexcited singlet state through the contributions of enhanced intersystem crossing and singlet fission. Detailed kinetic analyses for the transient absorption data were conducted to quantify the excited-state characteristics of the derivatives.