Green electrogenerated chemiluminescence using a quinacridone derivative as a guest molecule
Green electrogenerated chemiluminescence using a quinacridone derivative as a guest molecule
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DOI：
10.1016/j.elecom.2021.107047
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发表时间：
2021-04
影响因子：
5.4
通讯作者：
Yugo Koinuma;R. Ishimatsu;Emiri Kato;J. Mizuno;T. Kasahara
中科院分区：
文献类型：
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作者：
Yugo Koinuma;R. Ishimatsu;Emiri Kato;J. Mizuno;T. Kasahara
我们开发了一种基于溶液的绿色电致化学发光 (ECL) 电池，使用喹吖啶酮衍生物 5,12-二丁基-1,3,8,10-四甲基喹吖啶酮 (TMDBQA) 作为荧光客体。 2-叔丁基-9,10-二(萘-2-基)蒽(TBADN)和4,4'-双[4-(二苯基氨基)苯乙烯基]联苯(BDAVBi)分别作为主体和辅助掺杂剂分子，并与客体一起溶解在有机溶剂中。当施加 5.5 V 直流电压时，具有夹在两个透明电极之间的 5 μm 厚微通道的微流控 ECL 单元，从 TMDBQA 发出明亮的绿光，最大亮度为 40.9 cd/m2，最大电流效率为 2.25 cd/A。然而，如果溶液中不存在 TBADN 和 BDAVBi，则不会观察到 ECL 发射。因此，提出了一种TMDBQA高效ECL发射的可能机制，涉及从TBADN到BDAVBi的两步能量转移。我们相信主客体解决方案的概念将有助于开发新型发光器件。
We have developed a solution-based green electrogenerated chemiluminescence (ECL) cell using a quinacridone derivative, 5,12-dibutyl-1,3,8,10-tetramethylquinacridone (TMDBQA), as a fluorescent guest. 2-tert-Butyl-9,10-di(naphth-2-yl)anthracene (TBADN) and 4,4′-bis[4-(diphenylamino)styryl]biphenyl (BDAVBi) were used as host and assist dopant molecules, respectively, and dissolved in an organic solvent with the guest. When a direct current voltage of 5.5 V was applied, the microfluidic ECL cell, which has a 5-μm-thick microchannel sandwiched between two transparent electrodes, exhibited bright green emission from TMDBQA with a maximum luminance of 40.9 cd/m2and a maximum current efficiency of 2.25 cd/A. However, if both TBADN and BDAVBi were absent from the solution, ECL emission was not observed. Thus, a possible mechanism for the efficient ECL emission of TMDBQA is proposed, involving a two-step energy transfer from TBADN through BDAVBi. We believe that the concept of host–guest solutions will be useful in developing novel light-emitting devices.