From Two, to Three, to Multi-Color Switches: Developing AIEgen-Based   Mechanochromic Materials

doi:10.1002/cnma.201700120

CORC > 北京大学 > 化学与分子工程学院

	From Two, to Three, to Multi-Color Switches: Developing AIEgen-Based Mechanochromic Materials
	Meng, Xiao ; Chen, Changqing ; Qi, Guangyu ; Li, Xue ; Wang, Kai ; Zou, Bo ; Ma, Yuguo
刊名	CHEMNANOMAT
	2017
关键词	aggregation-induced emission luminogen (AIEgen) high pressure chemistry mechanochromic molecule spiropyran AGGREGATION-INDUCED-EMISSION SILICA NANOPARTICLES MECHANICAL-FORCE ALKYNE GROUPS LUMINOGENS PRESSURE TETRAPHENYLETHENE CYCLOADDITION LUMINESCENCE FLUORESCENCE
DOI	10.1002/cnma.201700120
英文摘要	A multi-color switching mechanochromic aggregation-induced emission luminogen (AIEgen) whose fluorescence spectra nearly covers the whole visible region was obtained from attaching spiropyran (SP) moiety on tetraphenyl-ethylene (TPE). The covalent attachment of SP to TPE is crucial. It enables the tuning of the fluorescence of SP-TPE dyads from no color change, to two-color switching, to three-color switching under grinding, based on the amorphization of TPE moiety and isomerization of spiropyran moiety. Under quantifiable hydrostatic pressures, the multi-color switch with wide spectral response region was obtained resulting from distinct pressure thresholds for supramolecular and chemical structural changes. The attached spiropyran helped to enhance the response of the mechanochromic AIEgens to show more fantastic and obvious responses. The multi-color changes and obvious responses in a wider visible region and an enhancement of fluorescence intensity give this molecule great potential for applications in visual pressure sensors, pressure calibration, etc.; National Natural Science Foundation [91227202, 51573002]; Ministry of Science and Technology of China [2013CB933501]; SCI(E); ARTICLE; 8; 569-574; 3
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471752]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Meng, Xiao,Chen, Changqing,Qi, Guangyu,et al. From Two, to Three, to Multi-Color Switches: Developing AIEgen-Based Mechanochromic Materials[J]. CHEMNANOMAT,2017.
APA	Meng, Xiao.,Chen, Changqing.,Qi, Guangyu.,Li, Xue.,Wang, Kai.,...&Ma, Yuguo.(2017).From Two, to Three, to Multi-Color Switches: Developing AIEgen-Based Mechanochromic Materials.CHEMNANOMAT.
MLA	Meng, Xiao,et al."From Two, to Three, to Multi-Color Switches: Developing AIEgen-Based Mechanochromic Materials".CHEMNANOMAT (2017).