Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inks

This study presents an innovative approach for the fabrication of colour electronic inks designed for multi-colour electrophoretic image displays (EPIDs). Hybrid spheres composed of titanium dioxide (TiO2) cores and organic colourants (cyan, magenta, and yellow), then encapsulated by appropriate pol...

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Main Authors: Lydia Muentz, Emile Decompte, Hugo Ravet, Nicolas Penin, Anthony Chiron, Cyril Brochon, Georges Hadziioannou, Elodie Bourgeat-Lami, Manuel Gaudon
Format: Article
Language:English
Published: Elsevier 2025-10-01
Series:Materials & Design
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127525009839
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author Lydia Muentz
Emile Decompte
Hugo Ravet
Nicolas Penin
Anthony Chiron
Cyril Brochon
Georges Hadziioannou
Elodie Bourgeat-Lami
Manuel Gaudon
author_facet Lydia Muentz
Emile Decompte
Hugo Ravet
Nicolas Penin
Anthony Chiron
Cyril Brochon
Georges Hadziioannou
Elodie Bourgeat-Lami
Manuel Gaudon
author_sort Lydia Muentz
collection DOAJ
description This study presents an innovative approach for the fabrication of colour electronic inks designed for multi-colour electrophoretic image displays (EPIDs). Hybrid spheres composed of titanium dioxide (TiO2) cores and organic colourants (cyan, magenta, and yellow), then encapsulated by appropriate polymer shells, were synthesized to be integrated into pixel prototypes for EPIDs. Thus, the work involves three main key steps: (i) the preparation of coloured hybrid spherical particles through spray-drying of TiO2 suspensions with organic inks, (ii) the exploration and the characterization of the pallet of colourations which are accessible for the hybrid spherical particles, (iii) the enhancement of particle stability in EPID fluids thanks to functionalization (silanisation and polymer encapsulation) and surface charge introduction on the hybrid pigment spheres for stability in apolar media. Electrophoretic performance was evaluated in dual-colour display cells. The hybrid particles demonstrated excellent light-harvesting capabilities and colloidal stability. Electrophoretic tests showed promising performance, with alternating surface colourations and sustained optical contrasts over multiple refresh cycles. This research contributes to the development of advanced colour electronic ink technologies for improved electrophoretic displays.
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institution Kabale University
issn 0264-1275
language English
publishDate 2025-10-01
publisher Elsevier
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series Materials & Design
spelling doaj-art-c874f5f0e87c4ded8e96f9ff4f51e1d52025-08-20T05:04:14ZengElsevierMaterials & Design0264-12752025-10-0125811456310.1016/j.matdes.2025.114563Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inksLydia Muentz0Emile Decompte1Hugo Ravet2Nicolas Penin3Anthony Chiron4Cyril Brochon5Georges Hadziioannou6Elodie Bourgeat-Lami7Manuel Gaudon8Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR5026, 87 avenue du Dr. A. Schweitzer, F-33608 Pessac, FranceUniv. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR5629, Allée Geoffroy Saint Hilaire, Bâtiment B8, F-33607 Pessac, FranceUniv. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR5026, 87 avenue du Dr. A. Schweitzer, F-33608 Pessac, FranceUniv. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR5026, 87 avenue du Dr. A. Schweitzer, F-33608 Pessac, FranceUniv. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR5026, 87 avenue du Dr. A. Schweitzer, F-33608 Pessac, FranceUniv. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR5629, Allée Geoffroy Saint Hilaire, Bâtiment B8, F-33607 Pessac, FranceUniv. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR5629, Allée Geoffroy Saint Hilaire, Bâtiment B8, F-33607 Pessac, FranceUniv. Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5128, Catalysis, Polymerization, Processes and Materials (CP2M), 43 Bd du 11 novembre 1918, F-69616 Villeurbanne, FranceUniv. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR5026, 87 avenue du Dr. A. Schweitzer, F-33608 Pessac, France; Corresponding author.This study presents an innovative approach for the fabrication of colour electronic inks designed for multi-colour electrophoretic image displays (EPIDs). Hybrid spheres composed of titanium dioxide (TiO2) cores and organic colourants (cyan, magenta, and yellow), then encapsulated by appropriate polymer shells, were synthesized to be integrated into pixel prototypes for EPIDs. Thus, the work involves three main key steps: (i) the preparation of coloured hybrid spherical particles through spray-drying of TiO2 suspensions with organic inks, (ii) the exploration and the characterization of the pallet of colourations which are accessible for the hybrid spherical particles, (iii) the enhancement of particle stability in EPID fluids thanks to functionalization (silanisation and polymer encapsulation) and surface charge introduction on the hybrid pigment spheres for stability in apolar media. Electrophoretic performance was evaluated in dual-colour display cells. The hybrid particles demonstrated excellent light-harvesting capabilities and colloidal stability. Electrophoretic tests showed promising performance, with alternating surface colourations and sustained optical contrasts over multiple refresh cycles. This research contributes to the development of advanced colour electronic ink technologies for improved electrophoretic displays.http://www.sciencedirect.com/science/article/pii/S0264127525009839
spellingShingle Lydia Muentz
Emile Decompte
Hugo Ravet
Nicolas Penin
Anthony Chiron
Cyril Brochon
Georges Hadziioannou
Elodie Bourgeat-Lami
Manuel Gaudon
Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inks
Materials & Design
title Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inks
title_full Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inks
title_fullStr Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inks
title_full_unstemmed Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inks
title_short Cyan, magenta and yellow TiO2-based hybrid spheres for electrophoretic inks
title_sort cyan magenta and yellow tio2 based hybrid spheres for electrophoretic inks
url http://www.sciencedirect.com/science/article/pii/S0264127525009839
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