Authors
|
Sun, N. ; Su, K. X. ; Zhou, Z. ; Yu, Y. ; Tian, X. ; Wang, D.M. ; Zhao, X. G. ; Zhou, H. W. ; Chen, C. H.
|
Title
|
AIE-active polyamide containing diphenylamine-TPE moiety with superior electrofluorochromic performance
|
Date
|
19.04.2018
|
Number
|
55415
|
Abstract
|
Electrofluorochromism has attracted great attention due to the intelligence optoelectronic and sensing applications. The intrinsically switchable fluorophores with high solid-state fluorescence are regarded as key for ideal electrofluorochromic materials. Here, we reported an AIE-active polyamide with diphenylamine and tetraphenylethylene units, showing high fluorescence quantum yield up to 69.1% for the solid polymer film and stable electrochemical cycling stability. The polyamide exhibited reversible color and emission switching even in hundreds of cycles, and the fluorescence on/off contrast ratio was determined up to 417, which is the highest value to our knowledge. Furthermore, as the response time is vital for the real-life applications, to speed up the response of electrofluorochromism, a porous polymer film was readily prepared through a facile method, notably exhibiting high fluorescence contrast, long-term stability and obviously improved response, due to the sharply increased surface area. Therefore, the AIE-functionalization combining the porous structure strategy will synergistically and dramatically improve the electrofluorochromic performance, which will also promote their practical applications in the near future.
|
Publisher
|
ACS Applied Materials & Interfaces
|
Wikidata
|
|
Citation
|
ACS Applied Materials & Interfaces 10 (2018) 16105-16112
|
DOI
|
https://doi.org/10.1021/acsami.8b01624
|
Tags
|
diphenylamine electrochromic electrofluorochromic porous structure tetraphenylethylene
|