Multicolored electrochromism from benzodipyrrolidone-based ambipolar electrochromes at a fixed potential
作者:Yuan Ling、Chunlan Xiang、Gang Zhou
DOI:10.1039/c6tc04834j
日期:——
potentials owing to their two-step reversible reductive processes. Consequently, multicolored electrochromism can be realized in the electrochromic devices (ECDs) based on the BDPs at different potentials due to their abundant redox states. Most importantly, by simply etching the ITO electrodes, reversible multicolored electrochromism can also be achieved in single-layered ECDs at a fixed potential
设计并合成了一系列由吸电子的苯并二吡咯烷酮(BDP)部分组成的双极性电致变色(EC)材料。在结合不同的电子供体时,由于BDP中分子内的电荷转移相互作用不同,因此获得了覆盖整个可见光范围的各种颜色。有趣的是,由于所有BDP的两步可逆还原过程,它们在负电势下会显示出戏剧性的色彩切换。因此,可以在基于BDP的电致变色设备(ECD)中实现多色电致变色由于其丰富的氧化还原态而处于不同的电位。最重要的是,由于BDP的双极性特性,通过简单地蚀刻ITO电极,还可以在固定电位的单层ECD中实现可逆的多色电致变色。这项研究可能会为双极性EC材料的利用和彩色ECD的构建开辟一条新途径。