Cryptand based solid-state electrolytes in polymer light-emitting devices
Cryptand based solid-state electrolytes in polymer light-emitting devices
复制标题
聚合物发光器件中基于穴状化合物的固态电解质
DOI：
10.1063/1.2773756
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发表时间：
2007
影响因子：
4
通讯作者：
E. List
中科院分区：
文献类型：
--
作者：
G. Mauthner;U. Scherf;E. List
为了获得对发光电化学电池（LEC）的基本操作模式的改进的了解，LEC由固态电解质制备，所述固态电解质由穴状配体（Kryptofix® 2.2.2，[2.2.2]穴状配体）和三氟甲磺酸锂以及蓝色发射低斯托克斯位移聚（对亚苯基）组成。这些器件显示出类似LEC的特性，然而，它们的演变出现在更长的时间尺度上，这是与常用的离子导体相比，[2.2.2]穴状配体的阳离子电导率降低以及阴极附近的电化学n掺杂减速的结果。可以研究器件运行期间发射区偏移的位置和方向。
In order to gain improved insight into the fundamental mode of operation of light-emitting electrochemical cells (LECs), LECs were prepared from a solid-state electrolyte, consisting of the cryptand (Kryptofix® 222, [2.2.2] cryptand) and lithium triflate, and a blue emitting low-Stokes-shift poly(para-phenylene). The devices reveal LEC-like characteristics, however, their evolution appear on a longer time scale, which is a consequence of reduced cation conductivity of the [2.2.2] cryptands compared to commonly used ion conductors and decelerated electrochemical n doping near the cathode. It is possible to study the location and direction of the emission zone shift during device operation.