Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display

Jiamin Cheng; Mian Qin; Wenhao Wang; Jingxing Zhang; Yao Wang; Pengfei Bai; Hao Li; Guofu Zhou

doi:10.1038/s41377-025-02095-3

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Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display

Original Articles

- Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display
- Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display
- Light: Science & Applications 2026年15卷第4期页码：1361-1376
- Affiliations：
  
  1.Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, 510006, Guangzhou, China
  2.National Center for International Research on Green Optoelectronics, South China Normal University, 510006, Guangzhou, China
  3.Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, Guangdong, China
- Author bio：
  
  Pengfei Bai (Baipf@scnu.edu.cn)
  Hao Li (haoli@m.scnu.edu.cn)
  Guofu Zhou (guofu.zhou@m.scnu.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-02095-3
  中图分类号：
- 收稿：2025-03-18，
  
  修回：2025-09-26，
  
  录用：2025-10-12，
  
  网络首发：2026-02-24，
  
  纸质出版：2026-04-30
- Accepted：
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Jiamin Cheng, Mian Qin, Wenhao Wang, 等. Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display[J]. Light: Science & Applications, 2026,15(4):1361-1376.

Cheng, J. M. et al. Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display. Light: Science & Applications, 15, 1361-1376 (2026).
Jiamin Cheng, Mian Qin, Wenhao Wang, 等. Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display[J]. Light: Science & Applications, 2026,15(4):1361-1376. DOI： 10.1038/s41377-025-02095-3.

Cheng, J. M. et al. Colored polymer-reinforced metal-organic framework microparticles with high charge-to-mass ratio for electrophoretic display. Light: Science & Applications, 15, 1361-1376 (2026). DOI： 10.1038/s41377-025-02095-3.

摘要

Abstract

Besides high porosity and controllable structure

metal-organic framework (MOF) has some natural advantages for color electrophoretic particles: easy modification

controllable morphology

low and adjustable density

and high charge density

as well as rich

vivid

and stable colors. Therefore

we first integrated the four colored MOF microparticles and polyelectrolytes into the blue

reddish-brown

green

and purple electrophoretic particles to construct the two-color stable dispersions in nonpolar isododecane as the electrophoretic inks. Here

the surface modification of polyethyleneimine (PEI) chains based on non-covalent interaction rendered these MOF microparticles fully reinforced to ~+30 mV in Zeta potential and over 3.6×10

-10

-1

in the electrophoretic mobility. Under the ultralow field strength of 0.02 V μm

-1

all the response time and recovery time were no more than 2.3 and 5.9 s

respectively. Even after long-time or multiple driving

these MOF microparticles and their reflectance value still remained constant to some extent. By comparison

these colored PEI-reinforced MOF microparticles are superior to the other organic color pigments and inorganic particles

in response capability

charge-to-mass ratio

preparation method

production cost

and stability in color

particle

and display. It is anticipated to provi

de an innovative and promising technical path for color electrophoresis display.

关键词

Keywords

references

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