Solution electrochemiluminescent cell with a high luminance using an ion conductive assistant dopant
Solution electrochemiluminescent cell with a high luminance using an ion conductive assistant dopant
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DOI：
10.1143/jjap.40.l1323
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发表时间：
2001-12-01
期刊：
影响因子：
--
通讯作者：
Fuyuki, T
中科院分区：
文献类型：
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作者：
Nishimura, K;Hamada, Y;Fuyuki, T
传统的溶液电化学发光（SECL）池亮度较低。在本文中，我们提出了一种离子导电辅助掺杂（ICAD）系统，以提高SECL电池的亮度。假设SECL电池具有[透明电极/发光溶液/透明电极]的简单结构。该电池的溶液由混合溶剂（邻二氯苯/乙腈= 2/1（体积/体积））、用作发光材料的红荧烯和用作ICAD的1，2-二苯氧基乙烷组成。当向该SECL电池施加电压时，该电池在8 V下实现了183 cd/m（2）的亮度和1.5 cd/A的发光效率，并发射黄光。另一方面，没有ICAD的SECL电池在8V下产生0.3cd/m（2）的低亮度，对应于常规SECL电池。ICAD通过增强溶液中红荧烯阳离子的离子导电性，使发光亮度提高600倍（邻二氯苯/甲苯= 2/1（体积/体积）），其具有高耐压性，用于SECL电池中，该电池在80 V下获得986 cd/m（2）的最大亮度。SECL电池的特征是简单的电池结构和透明的发射区域。SECL电池有望用于汽车、窗户、信息设备等具有透视功能的独特显示器。
Conventional solution electrochemiluminescent (SECL) cells have a low luminance. In this paper, we propose an ion conductive assistant dopant (ICAD) system to improve the luminance of SECL cells. The SECL cell is assumed to have a simple structure of [transparent electrode/emitting solution/transparent electrode]. The solution of the cell consists of a mixed solvent (o-dichlorobenzene/acetonitrile = 2/1 (vol/vol)), rubrene used as the emitting material, and 1,2-diphenoxyethane used as the ICAD. When voltage is applied to this SECL cell, the cell achieves a luminance of 183 cd/m(2) and a luminous efficiency of 1.5 cd/A at 8 V with yellow emission. On the other hand, an SECL cell without an ICAD results in a low luminance of 0.3 cd/m(2) at 8 V, corresponding to a conventional SECL cell. The ICAD improves the luminance 600 times by enhancing the ion conduction of rubrene cations in the solution.Furthermore, when the mixed solvent (o-dichlorobenzene/toluene = 2/1 (vol/vol)), which has a high voltage resistance, is used in the SECL cell, the cell obtains a maximum luminance of 986 cd/m(2) at 80 V. The features of the SECL cell are a simple cell structure and a transparent emitting area. SECL cells are expected to be used in unique displays with a see-through function for automobiles, windows, information equipment, and so on.