Polarized absorption and emission of ordered self-assembled porphyrin rings

被引:54
作者
Jeukens, CRLPN
Lensen, MC
Wijnen, FJP
Elemans, JAAW
Christianen, PCM
Rowan, AE
Gerritsen, JW
Nolte, RJM
Maan, JC
机构
[1] Univ Nijmegen, HFML, High Field Magnet Lab, NSRIM, NL-6525 ED Nijmegen, Netherlands
[2] Univ Nijmegen, Dept Organ Chem, NSRIM, NL-6525 ED Nijmegen, Netherlands
[3] Univ Nijmegen, Dept Solid State Phys, NSRIM, NL-6525 ED Nijmegen, Netherlands
关键词
D O I
10.1021/nl049363d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Self-assembled rings (with diameters of 0.1-2.0 mum) consisting of porphyrin dodecamer molecules are formed by evaporating chloroform solutions on glass substrates. Fluorescence microscopy experiments on individual rings reveal a strongly polarized optical absorption and emission. Quantitative analysis of the fluorescence images evidences the high degree of order within the rings, consisting of radially oriented columnar stacks of porphyrin dodecamers, and the absence of energy transport along the rings on length scales resolved by fluorescence microscopy.
引用
收藏
页码:1401 / 1406
页数:6
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