Polarized fluorescence and orientational order parameters of a liquid-crystalline conjugated polymer
Polarized fluorescence and orientational order parameters of a liquid-crystalline conjugated polymer
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液晶共轭聚合物的偏振荧光和取向序参数
DOI：
10.1103/physrevb.60.277
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发表时间：
1999
影响因子：
3.7
通讯作者：
M. Hennecke
中科院分区：
文献类型：
--
作者：
B. Schartel;V. Wachtendorf;M. Grell;D. Bradley;M. Hennecke
我们报道了液晶共轭聚合物聚（9，9-二辛基芴）取向薄膜的取向顺序的研究。用稳态偏振荧光法测定了取向有序参数$P {2}<$$和$P {4}<$$。讨论了分子间和分子内激发能转移对偏振度的影响。膜形态的作用也检查玻璃和结晶膜的结果的比较。
We report a study of the orientational order of aligned thin films of the liquid crystalline conjugated polymer poly(9,9-dioctylfluorene). Steady state polarized fluorescence measurements were used to determine the orientational order parameter $〈{P}_{2}〉$ and $〈{P}_{4}〉.$ The influence of intermolecular and intramolecular excitation energy transfer on the degree of polarization is discussed. The role of film morphology is also examined by comparison of the results for glassy and crystalline films.