Volume 135, Issue 7 e202217284
Forschungsartikel

Switchable and Highly Robust Ultralong Room-Temperature Phosphorescence from Polymer-Based Transparent Films with Three-Dimensional Covalent Networks for Erasable Light Printing

Jian-An Li

Jian-An Li

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Letian Zhang

Letian Zhang

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Dr. Chunlei Wu

Dr. Chunlei Wu

Guangzhou Huifu Research Institute Co., Ltd., Guangzhou, 510663 China

Search for more papers by this author
Zihao Huang

Zihao Huang

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Shufeng Li

Shufeng Li

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Huaqing Zhang

Huaqing Zhang

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Qingchen Yang

Qingchen Yang

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Dr. Zhu Mao

Corresponding Author

Dr. Zhu Mao

Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China

Search for more papers by this author
Prof. Suilian Luo

Prof. Suilian Luo

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Prof. Cong Liu

Prof. Cong Liu

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Prof. Guang Shi

Corresponding Author

Prof. Guang Shi

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
Prof. Bingjia Xu

Corresponding Author

Prof. Bingjia Xu

School of Chemistry, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006 China

Search for more papers by this author
First published: 13 December 2022
Citations: 4

Abstract

In this work, an efficient polymer-based organic afterglow system, which shows reversible photochromism, switchable ultralong organic phosphorescence (UOP), and prominent water and chemical resistance simultaneously, has been developed for the first time. By doping phenoxazine (PXZ) and 10-ethyl-10H-phenoxazine (PXZEt) into epoxy polymers, the resulting [email protected] % and [email protected] % films show unique photoactivated UOP properties, with phosphorescence quantum yields and lifetimes up to 10.8 % and 845 ms, respectively. It is found that the steady-state luminescence and UOP of [email protected] % are switchable by light irradiation and thermal annealing. Moreover, the doped films can still produce conspicuous UOP after soaking in water, strong acid and base, and organic solvents for more than two weeks, exhibiting outstanding water and chemical resistance. Inspired by these exciting results, the [email protected] % has been successfully exploited as an erasable transparent film for light printing.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.