and typical organic fluorophores have been employed as donor and acceptor dyes, respectively. Outstanding wide-range MCL with an emission-wavelength shift of over 300 nm has been achieved by mixing the diamine with 3,4,9,10-perylenetetracarboxylic diimide. Unprecedented two-step MCL in response to mechanical stimuli of different intensity has also been realized for a two-component mixture with 9,10-anthraquinone
尽管最近对机械致变色发光 (MCL) 进行了广泛的研究,但对响应机械刺激的发射波长偏移幅度的合理控制仍然具有挑战性。在本研究中,一种双组分供体 - 受体方法已被应用于创建各种具有显着发射波长切换的有机 MCL 复合材料。基于
二苯并呋喃的双(1-
芘甲基)二胺和典型的有机荧光团已分别用作供体和受体
染料。通过将二胺与 3,4,9,10-
苝四
羧酸二
酰亚胺混合,实现了发射波长偏移超过 300 nm 的出色宽范围 MCL。对于具有 9,10-
蒽醌的双组分混合物,还实现了响应不同强度机械刺激的前所未有的两步 MCL。