Mun, Kwang Rok Kyhm, Jihoon Lee, Ja Yeon Shin, Seungyong Zhu, Yiyuan Kang, Gumin Kim, Donghwan Deng, Renren Jang, Ho Seong 2024-01-19T09:34:43Z 2024-01-19T09:34:43Z 2023-04-13 2023-04 1530-6984 https://pubs.kist.re.kr/handle/201004/113837 Herein, we demonstrate video-rate color three-dimensional (3D) volumetric displays using elemental-migration-assisted full-color-tunable upcon-version nanoparticles (UCNPs). In the heavily doped NaErF4:Tm-based core@ multishell UCNPs, erbium migration was observed. By tailoring this migration through adjustment of the intermediate shell thickness between the core and the sensitizer-doped second shell, red-green orthogonal upconversion luminescence (UCL) was achieved. Furthermore, highly efficient red-green-blue orthogonal UCL and full-color tunability were achieved in the UCNPs through a combination of elemental-migration-assisted color tuning and selective photon blocking. Finally, 3D volumetric displays were fabricated using a UCNP- polydimethylsiloxane composite. More specifically, 3D color images were created and motion pictures based on the expansion, rotation, and up/down movement of the displayed images were realized in the display matrix. Overall, our study provides new insights into upconversion color tuning and the achievement of motion pictures in the UCNP- polydimethylsiloxane composite is expected to accelerate the further development of solid-state full-color 3D volumetric displays. English American Chemical Society Elemental-Migration-Assisted Full-Color-Tunable Upconversion Nanoparticles for Video-Rate Three-Dimensional Volumetric Displays Article 10.1021/acs.nanolett.3c00397 1 Nano Letters, v.23, no.7, pp.3014 - 3022 Nano Letters 23 7 3014 3022 N scie scopus 000955015000001 2-s2.0-85151259029 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article; Early Access ENERGY MIGRATION NANOCRYSTALS GREEN STATE Upconversion nanoparticles elemental migration upconversion full-color tuning selective photon blocking 3D volumetric displays