化学
共轭体系
发光体
平面的
激发态
发光
分子
激发
准分子
RGB颜色模型
光化学
荧光
光电子学
聚合物
光学
原子物理学
有机化学
材料科学
计算机图形学(图像)
物理
计算机科学
电气工程
操作系统
工程类
作者
Chunxue Yuan,Shohei Saito,Cristopher Camacho,Stephan Irle,Ichiro Hisaki,Shigehiro Yamaguchi
摘要
We have designed and synthesized a π-conjugated system that consists of a flexible and nonplanar π joint and two emissive rigid and planar wings. This molecular system exhibits respectively red, green, and blue (RGB) emission from a single-component luminophore in different environments, namely in polymer matrix, in solution, and in crystals. The flexible unit gives rise to a dynamic conformational change in the excited state from a nonplanar V-shaped structure to a planar structure, leading to a dual fluorescence of blue and green colors. The rigid and planar moieties favor the formation of a two-fold π-stacked array of the V-shaped molecules in the crystalline state, which produces a red excimer-like emission. These RGB emissions are attained without changing the excitation energy.
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