有机功能染料稳定性强化
Organic functional dyes operate under light, electricity and heat, and often accompanied with excited states, radicals, oxidized/reduced species and excitons. These chemical active states and/or species may results in dye deconstruction and performance loss of relative devices. Accordingly,the stability and durability of organic functional dyes have become the bottleneck to organic opto-electronic devices, especially for practical applications. To break through the application bottleneck arising from the dye stability, our group has recently explored several strategies to develop highly efficient and stable organic functional dyes, along with focus on the stability enhancement mechanism to strong acceptors: (i) introducing an additional electron-withdrawing unit to propose a D-A-π-A mode for greatly increasing the dye stability as well as photovoltatic performance in DSSCs; (ii) introducing novel electron-withdrawing ethene bridge and constructing ring-shaped supramoleculars for developing highly bistable photochromic dyes; (iii)physically shielding active species for efficiently extending to produce highly stable fluorescent dyes. Our strategies can greatly improve the stability enhancement of organic functional dyes, especially for getting insight into the intensification mechanism of dye stability.
有机功能染料 功能结构 稳定性
朱为宏
华东理工大学 精细化工研究所,上海 200237
国内会议
北京
中文
147-148
2014-11-01（万方平台首次上网日期，不代表论文的发表时间）