Highly terrylene doped single crystals of p-terphenyl, obtained by co-sublimation of both components, showed bright spots in the confocal fluorescence images. Polarization of the fluorescence excitation spectra, blinking and bleaching, and saturation behavior allowed us to attribute them to single molecules of terrylene anomalously embedded between two neighbor layers of the host crystal, in the (a,b) plane. Such an orientation of terrylene molecules results in much more efficient absorption and collection of the fluorescence photons than in the case of previously investigated molecules embedded in the substitution sites. The above conclusion was supported by quantum chemistry calculations. We postulate that the kind of doping considered in this work should be possible in other molecular crystals where the host molecules are organized in a herringbone pattern.

中文翻译：

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共聚焦荧光显微镜监测的分子晶体的异常掺杂：对-三联苯晶体中的三甲苯

p的高三r掺杂单晶通过两种成分的共升华获得的叔丁基在共聚焦荧光图像中显示出亮点。荧光激发光谱的极化，闪烁和漂白以及饱和行为使我们可以将它们归因于在（a，b）平面中异常嵌入主体晶体的两个相邻层之间的三ter单分子。与先前研究的嵌入取代位点中的分子的情况相比，三萘嵌苯分子的这种取向导致荧光光子的吸收和收集更加有效。以上结论得到了量子化学计算的支持。我们假设这项工作中考虑的掺杂类型应该在其他分子晶体中是可能的，在这些分子晶体中宿主分子以人字形组织。