Hong, A-Ra Kyhm, Ji-Hoon Kang, Gumin Jang, Ho Seong 2024-01-19T14:31:34Z 2024-01-19T14:31:34Z 2021-10-21 2021-06-09 1530-6984 https://pubs.kist.re.kr/handle/201004/116864 Here, excitation orthogonalized red/green/blue upconversion luminescence (UCL)-based full-color tunable rare-earth (RE) ion-doped upconversion nanophosphors (UCNPs) are reported. The LiREF4-based core/sextuple-shell (C/6S) UCNPs are synthesized, and they consist of a blue-emitting core, green-emitting inner shell, and red-emitting outer shell, with inert intermediate and outermost shells. The synthesized C/6S UCNPs emit blue, green, and red light under 980, 800, and 1532 nm, respectively. Importantly, by combining incident near-infrared (NIR) light with various wavelengths (800, 980, and 1532 nm), full-color UCL including blue, cyan, green, yellow, orange, red, purple, and white UCL is achieved from the single C/6S UCNP composition. The color gamut obtained from the C/6S UCNPs shows 101.6% of the sRGB standard color gamut. Furthermore, transparent C/6S UCNP-polydimethylsiloxane (PDMS) composite is prepared. Full-color display realized in the transparent C/6S UCNP-PDMS composite indicates the feasibility of constructing the C/6S UCNP-based three-dimensional volumetric displays with wide color gamut. English AMER CHEMICAL SOC ENERGY MIGRATION FACILE SYNTHESIS EMISSIONS LIGHT NANOCRYSTALS EXCITATIONS NANOPROBES STATE Orthogonal R/G/B Upconversion Luminescence-based Full-Color Tunable Upconversion Nanophosphors for Transparent Displays Article 10.1021/acs.nanolett.1c01510 1 NANO LETTERS, v.21, no.11, pp.4838 - 4844 NANO LETTERS 21 11 4838 4844 scie scopus 000662078500043 2-s2.0-85108021329 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article ENERGY MIGRATION FACILE SYNTHESIS EMISSIONS LIGHT NANOCRYSTALS EXCITATIONS NANOPROBES STATE Upconversion nanophosphors core/multishell structures full-color tuning orthogonal upconversion luminescence transparent displays