Piezochromism in Dynamic Three‐Dimensional Covalent Organic Frameworks

Author:

Fang Jing1,Fu Zhiyuan2,Chen Xiaohong1,Liu Yaozu1,Chen Fengqian1,Wang Yujie1,Li Hui1,Yusran Yusran1,Wang Kai2,Valtchev Valentin34,Qiu Shilun1,Zou Bo2,Fang Qianrong1ORCID

Affiliation:

1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Department of Chemistry Jilin University Changchun 130012 China

2. State Key Laboratory of Superhard Materials, College of Physics Jilin University Changchun 130012 P. R. China

3. Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences 189 Songling Road Qingdao 266101 P. R. China

4. Normandie Univ ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie 6 Marechal Juin 14050 Caen France

Abstract

AbstractPiezochromic materials with pressure‐dependent photoluminescence tuning properties are important in many fields, such as mechanical sensors, security papers, and storage devices. Covalent organic frameworks (COFs), as an emerging class of crystalline porous materials (CPMs) with structural dynamics and tunable photophysical properties, are suitable for designing piezochromic materials, but there are few related studies. Herein, we report two dynamic three‐dimensional COFs based on aggregation‐induced emission (AIE) or aggregation‐caused quenching (ACQ) chromophores, termed JUC‐635 and JUC‐636 (JUC=Jilin University China), and for the first time, study their piezochromic behavior by diamond anvil cell technique. Due to the various luminescent groups, JUC‐635 has completely different solvatochromism and molecular aggregation behavior in the solvents. More importantly, JUC‐635 with AIE effect exhibits a sustained fluorescence upon pressure increase (≈3 GPa), and reversible sensitivity with high‐contrast emission differences (Δλem=187 nm) up to 12 GPa, superior to other CPMs reported so far. Therefore, this study will open a new gate to expand the potential applications of COFs as exceptional piezochromic materials in pressure sensing, barcoding, and signal switching.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Higher Education Discipline Innovation Project

China Postdoctoral Science Foundation

Publisher

Wiley

Subject

General Chemistry,Catalysis

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3