Polarization of the Luminescence of Phenanthrene
Polarization of the Luminescence of Phenanthrene
复制标题
菲发光的偏振
DOI：
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发表时间：
1962
期刊：
影响因子：
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通讯作者：
S. McGlynn
中科院分区：
文献类型：
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作者：
T. Azumi;S. McGlynn
本文讨论了用偏振光激发随机取向的菲分子阵列时所发射的光的偏振性。为了建立一条正确的零偏振基线，对各种校正方法进行了研究，测定了菲的荧光激发光谱、荧光光谱和磷光光谱的偏振度。荧光光谱的偏振验证了Platt对菲的前四个单重电子态的分配，按能量增加的顺序为1Lb，1La，1Bb和1Cb。可能发生的一个或两个其他电子状态在相同的能量间隔，由齐默尔曼和乔普建议，进行了讨论。磷光发射主要在平面外偏振。结果进一步表明，要么两个微扰单重态混合到最低的三重态，或两个微扰三重态混合到单重基态。
The polarization of the luminescence emitted when a randomly oriented array of phenanthrene molecules is excited with polarized light is discussed. Considerable attention is devoted to various correction methods in an effort to establish a correct zero‐polarization base line.The polarization of the fluorescence excitation spectrum, the fluorescence spectrum and the phosphorescence spectrum of phenanthrene have been determined. The polarization of the fluorescence spectrum validates Platt's assignment of the first four singlet electronic states of phenanthrene as 1Lb, 1La, 1Bb, and 1Cb in order of increasing energy. The possible occurrence of one or two other electronic states in the same energy interval, as suggested by Zimmermann and Joop, is discussed. The phosphorescence emission is primarily polarized out of plane. The results further suggest that either two perturbing singlet states are mixed into the lowest triplet state, or that two perturbing triplet states are mixed into the singlet ground state ...