Structure-Directed Exciton Dynamics in Templated Molecular Nanorings.
Structure-Directed Exciton Dynamics in Templated Molecular Nanorings.
复制标题
DOI:
10.1021/acs.jpcc.5b00210
复制
发表时间:
2015-03-19
影响因子:
3.7
通讯作者:
Herz, Laura M.
中科院分区:
文献类型:
--
作者:
Gong, Juliane Q.;Parkinson, Patrick;Kondratuk, Dmitry V.;Gil-Ramirez, Guzman;Anderson, Harry L.;Herz, Laura M.
Conjugated polymers with cyclic structures are interesting because their symmetry leads to unique electronic properties. Recent advances in Vernier templating now allow large shape-persistent fully conjugated porphyrin nanorings to be synthesized, exhibiting unique electronic properties. We examine the impact of different conformations on exciton delocalization and emission depolarization in a range of different porphyrin nanoring topologies with comparable spatial extent. Low photoluminescence anisotropy values are found to occur within the first few hundred femtoseconds after pulsed excitation, suggesting ultrafast delocalization of excitons across the nanoring structures. Molecular dynamics simulations show that further polarization memory loss is caused by out-of-plane distortions associated with twisting and bending of the templated nanoring topologies.
登录
查看更多内容
影响因子:
15
作者:
Hogben, Hannah J.;Sprafke, Johannes K.;Anderson, Harry L.
通讯作者:
Anderson, Harry L.
影响因子:
3.7
作者:
Kanimozhi, Catherine;Naik, Mallari;Patil, Satish
通讯作者:
Patil, Satish
影响因子:
4.9
作者:
Anderson, HL
通讯作者:
Anderson, HL
影响因子:
2.8
作者:
Chang, MH;Hoeben, FJM;Herz, LM
通讯作者:
Herz, LM
影响因子:
4.4
作者:
Herz, LM;Daniel, C;Phillips, RT
通讯作者:
Phillips, RT