Improved fluorescence yields through selective photooxidation of conjugated polymer chromophores
Improved fluorescence yields through selective photooxidation of conjugated polymer chromophores
复制标题
通过共轭聚合物发色团的选择性光氧化提高荧光产量
DOI：
10.1117/1.jpe.8.032219
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发表时间：
2018
影响因子：
1.7
通讯作者：
L. Rothberg
中科院分区：
文献类型：
--
作者：
Benjamin W. Martin;Christopher Melnychuk;L. Rothberg
抽象。共轭聚合物MEH-PPV由两种基本类型的发色团组成，我们将其表征为“分离的”和“聚集的”。由于聚集的发色团具有较低的发射产率，但有利于能量迁移，我们表明，聚集的发色团的优先漂白可以导致显着提高荧光量子产率。我们研究了各种各样的样品类型，包括解决方案，稀膜，净膜，和核壳颗粒，并表明，在何种程度上发光的改善是可能的取决于组织的发色团。
Abstract. The conjugated polymer MEH-PPV consists of two basic types of chromophores that we characterize as “isolated” and “aggregated.” Because the aggregated chromophores have lower emissive yields but are favored by energy migration, we show that preferential bleaching of the aggregated chromophores can result in substantially improved fluorescence quantum yield. We study a wide variety of sample types including solutions, dilute films, neat films, and core-shell particles and show that the degree to which luminescence improvements are possible depends on the organization of the chromophores.
DOI：
10.1063/1.4819906
发表时间：
2013-09
期刊：
The Journal of chemical physics
影响因子：
--
作者：
H. Yamagata;N. Hestand;F. Spano;A. Köhler;Christina Scharsich;S. Hoffmann;H. Bässler
通讯作者：
H. Yamagata;N. Hestand;F. Spano;A. Köhler;Christina Scharsich;S. Hoffmann;H. Bässler