光致发光
化学
发光
光化学
分子轨道
分子
有机化学
材料科学
光电子学
作者
Kuo Lv,Minzhe Zhang,Xue Xia,Wenjing Liu,Kuanhong Wan,Ming Zhang,Liang Feng
摘要
We introduced cyano groups to replace chlorine atoms in the tris(2,4,6-trichlorophenyl)methyl (TTM) radical skeleton, resulting in two cyano-modified TTM skeletons. The incorporation of cyano groups effectively suppresses nonradiative transition processes and lowers the frontier molecular orbital energy levels compared to those of the TTM radical. Consequently, enhanced photoluminescence quantum efficiency (PLQE) and a shift towards longer-wavelength emission in solution were achieved. Furthermore, the cyano-modified TTM skeletons exhibited improved stabilities. The development of these two skeletons adds diversity to stable organic luminescent radical skeletons.
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