Strategy to Achieve a Pure Red/Green/Blue-Emitting Upconversion Luminescence for Full-Color Displays

Authors
Farooq, FizaShin, SeungyongLee, Ja YeonKyhm, JihoonKang, GuminKo, HyungdukJang, Ho Seong
Issue Date
2024-07
Publisher
American Chemical Society
Citation
ACS Applied Materials & Interfaces, v.16, no.29, pp.38221 - 38230
Abstract
Multicolor tunable upconversion nanoparticles (UCNPs) have garnered attention owing to their diverse applications such as displays, imaging, and security. Typically, achieving multicolor emission from UCNPs requires complicated core/multishell nanostructures comprising a core with at least five shells. Here, we propose a strategy to achieve bright and orthogonal red (R), green (G), and blue (B) upconversion (UC) luminescence without synthesizing complicated core/quintuple-shell or core/sextuple-shell nanostructures. For achieving bright and orthogonal RGB triprimary color UC luminescence, orthogonal bicolor-emitting core/shell-structured UCNPs are synthesized and blended. Orthogonal RB, RG, and GB luminescence are achieved through photon blocking. The combination of two orthogonal bicolor-emitting UCNPs exhibits pure RGB UC luminescence and full-color tunability via manipulation of excitation laser conditions. Furthermore, we present color displays achieved with transparent UCNP-polymer composites utilizing three distinct near-infrared light wavelengths, implying that the proposed strategy for attaining RGB UC luminescence may facilitate advancements in the development of full-color volumetric displays.
Keywords
NANOCRYSTALS; GREEN; STATE; RED; upconversion nanoparticles; orthogonal luminescence; multicolor tuning; polymer composites; transparentdisplays
ISSN
1944-8244
URI
https://pubs.kist.re.kr/handle/201004/150291
DOI
10.1021/acsami.4c05482
Appears in Collections:
KIST Article > 2024
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