UV‐Curable Perovskite Nanocrystal Inks Integrated with Distributed Bragg Reflectors for Blue‐To‐Green and Blue‐To‐Red Photoconversion
Metal halide perovskite nanocrystals (NCs) offer efficient color conversion for full-color light-emitting diode (LED) based displays, but formulating high-content luminescent NC inks for optimal inkjet printing remains a challenge. In this work, two highly concentrated inks based on polymerizable isobornyl acrylate (IBOA) and CsPbBr<sub>3</sub> or CsPbI<sub>3</sub> perovskite NCs are introduced, exhibiting pure green (528 nm) and pure red (643 nm) emissions with narrow linewidths. Both inks demonstrate photoluminescence quantum yields exceeding 92%, alongside excellent UV-curability and printability for color conversion layers. When integrated with an optimized Ti<sub>3</sub>O<sub>5</sub>/SiO<sub>2</sub> distributed Bragg reflector, these color conversion layers achieved photoconversion efficiencies of 59.8% (blue-to-green) and 48.8% (blue-to-red), positioning them as attractive components in combination with blue micro-LED backlights.
Authors
- Kunnathodi Vighnesh (ORCID: https://orcid.org/0000-0002-9658-0905)
- Andrey L. Rogach (ORCID: https://orcid.org/0000-0002-8263-8141)
- Yuhao Zhou (ORCID: https://orcid.org/0000-0002-3347-1357)
- Haochen Liu (ORCID: https://orcid.org/0000-0002-1801-4879)
- Yongming Yin (ORCID: https://orcid.org/0000-0003-3832-2462)
Institutions
- City University of Hong Kong (HK)
- Shenzhen MSU-BIT University
Publication Details
- Journal
- Small
- Published
- 2025-12-02
- DOI
- https://doi.org/10.1002/smll.202510535
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00