Luminescent materials exhibiting emission switching in the solid state have drawn much attention though there is still no clear design strategy for such materials. In this letter, we reported the crystallization induced emission enhancement (CIEE) of di(4-ethoxyphenyl)dibenzofulvene (1), and achieved switching its emission among four different colors through modulation of its molecular packing patterns. We have investigated its potential application as optical recording materials. The twisted conformations of CIEE compounds afford morphology dependent emission and facilitate tuning their emission through modulation of molecular packing patterns. Thus we provide a possible design strategy for solid stimulus responsive luminescent materials.
LI ChenYuLUO XiaoLiangZHAO WeiJunHUANG ZheLIU ZhengPingTONG BinDONG YongQiang
Two derivatives of tetraphenylethene (TPE) were synthesized through one step cross McMurry coupling reaction. Both luminogens exhibit aggregation-induced emission (AIE) and crystallization induced emission enhancement (CIEE). The emissions of both luminogens could be switched between blue and green through reversible modulation of morphology with thermal, organic solvent fuming and mechanical stimuli. Thus we provide a possible design strategy for emission switching materials.
SHI JunQingZHAO WeiJunLI CuiHongLIU ZhengPingBO ZhiShanDONG YuPingDONG YongQiangTANG Ben Zhong
Luminescent materials exhibiting emission switching in the solid state have drawn much attention though there is still no clear design strategy for such materials.In this letter,we reported the crystallization induced emission enhancement(CIEE)of di(4-ethoxyphenyl)dibenzofulvene(1),and achieved switching its emission among four different colors through modulation of its molecular packing patterns.We have investigated its potential application as optical recording materials.The twisted conformations of CIEE compounds afford morphology dependent emission and facilitate tuning their emission through modulation of molecular packing patterns.Thus we provide a possible design strategy for solid stimulus responsive luminescent materials.
LI ChenYuLUO XiaoLiangZHAO WeiJunHUANG ZheLIU ZhengPingTONG BinDONG YongQiang
