High‐Efficiency Circularly Polarized Luminescence Regulation of a Dye‐Doped Polymer Film by Acid/Aggregation

Author:

Sun Jianxin12,Han Mingyang34,Yang Guojian125ORCID,Wang Yueze3,Fang Wenjuan12,Shi Aiyan5,Xiang Chaoyu12,Wang Jianguo4,Zhang Ting12,Wang Haoran3

Affiliation:

1. Laboratory of Advanced Nano‐Optoelectronic Materials and Devices Qianwan Institute of CNITECH Ningbo 315300 P. R. China

2. Laboratory of Advanced Nano‐Optoelectronic Materials and Devices Laboratory of Optoelectronic and Information Materials and Devices Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 P. R. China

3. Faculty of Materials Science Shenzhen MSU‐BIT University Shenzhen 518115 P. R. China

4. College of Chemistry and Chemical Engineering Inner Mongolia Key Laboratory of Fine Organic Synthesis Inner Mongolia University Hohhot 010021 P. R. China

5. Smart Materials for Architecture Research Lab Innovation Center of Yangtze River Delta Zhejiang University Jiaxing 314100 P. R. China

Abstract

AbstractSmart materials with circularly polarized luminescence (CPL) tunable ability show great potential for advanced information storage and encryption. While an effective integration of high photoluminescence quantum yield (PLQY) and facile regulation of CPL property in thin films are of great significance, it is challenging due to the scarcity of suitable materials and complexity of systems. Herein, a novel acid‐responsive CPL tunable molecule is designed by combining an aggregation‐induced emission (AIE) component (TPE), an acid‐responsive luminophore (Rhodol), and a chiral aniline. Benefitting by the “AIE” effect of TPE and acid‐sensitive nature of Rhodol, the acidified molecule (S‐Rhodol‐TPE) exhibits a high PLQY even when doped in the polymer substrate at high concentrations. In addition, due to the fluorescence resonance energy transfer (FRET) process between TPE and Rhodol, the emission color of S‐Rhodol‐TPE can be easily regulated by the doped ratio and acidified degree of S‐Rhodol‐TPE in the polymer film. This work exhibits a unique approach to achieving smart CPL‐tunable films with high PLQYs and multiple emission color‐regulation properties, which can undoubtedly facilitate the progress of CPL tunable materials.

Funder

National Natural Science Foundation of China

Natural Science Foundation for Young Scientists of Shanxi Province

Special Funds for the Basic Research and Development Program in the Central Non-profit Research Institutesof China

Publisher

Wiley

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