|
1
|
Guo P, Wang J, Liao C, Zhou H, Huang D, Zhou G, Yu X, Hu J. Luminescence, energy transfer, colour modulation and up-conversion mechanisms of Yb 3+, Tm 3+ and Ho 3+ co-doped Y 6MoO 12. RSC Adv 2022; 12:33419-33428. [PMID: 36425190 PMCID: PMC9680008 DOI: 10.1039/d2ra05642a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/15/2022] [Indexed: 09/08/2024] Open
Abstract
A series of novel up-conversion luminescent Yb3+/Ln3+ (Tm3+, Ho3+, Tm3+/Ho3+)-doped Y6MoO12 (YMO) nanocrystals were synthesized using the sol-gel method. The consistent spherical morphology of the nanocrystals with different doping ratios was found to be profiting from the homogenisation and rapid agglomeration of the composition in the gel state and calcining process. The X-ray diffraction (XRD) and field-emission scanning electron microscope images were employed to confirm perfect crystallinity and uniform morphology. Photoluminescence spectra and decay curves were used to characterize the optical properties of the synthesized samples. The YMO:Yb3+/Ln3+ (Tm3+, Ho3+, Tm3+/Ho3+) nanocrystals were excited by near-infrared photons and emitted photons distributed in blue, green, and red bands with a wide colour gamut, and even white colour, by optimising the relative doping concentrations of the activator ions. The energy conversion mechanism in the up-conversion process was studied using power-dependent luminescence and is depicted in the energy level diagram. In addition, 70% of the luminescence intensity of YMO can be preserved after annealing at 700 °C, and the temperature sensing was tested in the range 298-498 K. These merits of multicolour emissions in the visible region and good stability endow the as-prepared nanocrystals with potential applications in the fields of optical data storage, encryption, sensing, and other multifunctional photonic technologies.
Collapse
Affiliation(s)
- Peng Guo
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 P. R. China
| | - Jiaxuan Wang
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 P. R. China
| | - Chuan Liao
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 P. R. China
| | - Haifeng Zhou
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 P. R. China
| | - Dapeng Huang
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 P. R. China
| | - Guangjun Zhou
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 P. R. China
| | - Xiaoqiang Yu
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 P. R. China
| | - Jifan Hu
- State Key Laboratory of Crystal Materials, Shandong University Jinan 250100 P. R. China
| |
Collapse
|
|
2
|
Hu S, Yuan M, Song C, Han K, Wang L, Huang H, Cui W, Yang Z, Wang H. The role of 2-ethylhexanoic acid in manipulating the morphology and upconversion of flame-made Y 2O 3:Yb 3+/Ho 3+ nanoparticles towards remote temperature sensing. CrystEngComm 2022. [DOI: 10.1039/d2ce00831a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the flame spray pyrolysis process, 2-ethylhexanoic acid manipulates morphology of Yb3+/Ho3+ co-doped Y2O3 upconversion nanoparticles towards homogeneous and ultrafine but causing upconversion luminescence quenching and thermal sensitivity lowering.
Collapse
Affiliation(s)
- Shuai Hu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
| | - Maohui Yuan
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
- Department of Physics and Chemistry, PLA Army Academy of Special Operations, Guangzhou, 510507, China
| | - Changqing Song
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
- Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha, 410073, China
| | - Kai Han
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
- State Key Laboratory of Pulsed Power Laser Technology, Changsha, 410073, China
| | - Linxuan Wang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
| | - Hanchang Huang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
| | - Wenda Cui
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
- Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha, 410073, China
| | - Zining Yang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
- Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha, 410073, China
| | - Hongyan Wang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China
- Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha, 410073, China
| |
Collapse
|