Jump to main content
Jump to site search

Issue 3, 2015
Previous Article Next Article

The effect of mechano-stimuli on the amorphous-to-crystalline transition of mechanochromic luminescent materials

Author affiliations

Abstract

Mechanochromic luminescence via grinding-induced crystalline-to-amorphous transition in some organic materials has been well illustrated in recent years. Here, we focus on the luminescence reversion process induced by thermal annealing crystallization of a series of tetraphenylethene analogues. Through paired comparisons, we disclosed that the mechano-stimuli can not only destroy the crystallinity of crystalline materials but can also bring a significant effect on the amorphous-to-crystalline transition of amorphous materials. That is, only when an amorphous material underwent mechano-stimuli can it crystallize by thermal annealing to recover its emission. This grinding-facilitated annealing crystallization is rationalized to originate from the twisted and rotatable intramolecular conformation that can be altered by mechano-stimuli. Besides some special usage of the material as security paper or latent memory medium, the study presents new strategies to control the crystallization of organic semiconductors.

Graphical abstract: The effect of mechano-stimuli on the amorphous-to-crystalline transition of mechanochromic luminescent materials

Back to tab navigation

Supplementary files

Article information


Submitted
13 Jun 2014
Accepted
08 Sep 2014
First published
09 Sep 2014

CrystEngComm, 2015,17, 526-531
Article type
Paper

The effect of mechano-stimuli on the amorphous-to-crystalline transition of mechanochromic luminescent materials

Y. Lv, Y. Liu, X. Ye, G. Liu and X. Tao, CrystEngComm, 2015, 17, 526
DOI: 10.1039/C4CE01212G

Social activity

Search articles by author

Spotlight

Advertisements