Tracking of Single Charge Carriers in a Conjugated Polymer Nanoparticle
Tracking of Single Charge Carriers in a Conjugated Polymer Nanoparticle
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DOI：
10.1021/nl203784m
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发表时间：
2012-03-01
期刊：
影响因子：
10.8
通讯作者：
McNeill, Jason
中科院分区：
文献类型：
--
作者：
Yu, Jiangbo;Wu, Changfeng;McNeill, Jason
用荧光显微镜跟踪有机纳米结构中单个电荷载流子的运动。在单个共轭聚合物纳米颗粒的荧光显微镜中观察到闪烁效应，即随着时间的推移观察到共轭聚合物PFBT的单个纳米颗粒的荧光斑点中的小位移。有证据表明，电荷载体的超猝灭在纳米颗粒中诱导了一个暗点，该暗点与载体一起移动，导致观察到的荧光位移。零场迁移率的个别电荷载流子符合高度被困极化子从跟踪实验。
The motion of individual charge carriers in organic nanostructures was tracked by fluorescence microscopy. A twinkling effect is observed in fluorescence microscopy of single conjugated polymer nanoparticles, that is, small displacements in the fluorescence spot of single nanoparticles of the conjugated polymer PFBT are observed over time. There is evidence that superquenching by the charge carrier induces a dark spot in the nanoparticle, which moves with the carrier, resulting in the observed displacements in the fluorescence. Zero-field mobilities of individual charge carriers consistent with highly trapped polarons were obtained from tracking experiments.