Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions

We describe a green synthesis of upconversion nanocrystals (UCNs) by adjusting local precursor supersaturation under aqueous conditions at low temperature with size and phase control as well as high production yield. The synthesis allows the separation of nucleation and growth, leading to the format...

Full description

Bibliographic Details
Main Authors: Li, Su, Chen, Jie, Tang, Yu Ying, Hu, Lin Yu, Qian, Wen Hui, Zhu, Dong, Chen, Peng
Other Authors: School of Chemical and Biomedical Engineering
Format: Journal Article
Language:English
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10356/164173
_version_ 1824455941806882816
author Li, Su
Chen, Jie
Tang, Yu Ying
Hu, Lin Yu
Qian, Wen Hui
Zhu, Dong
Chen, Peng
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Li, Su
Chen, Jie
Tang, Yu Ying
Hu, Lin Yu
Qian, Wen Hui
Zhu, Dong
Chen, Peng
author_sort Li, Su
collection NTU
description We describe a green synthesis of upconversion nanocrystals (UCNs) by adjusting local precursor supersaturation under aqueous conditions at low temperature with size and phase control as well as high production yield. The synthesis allows the separation of nucleation and growth, leading to the formation of small UCNs with a uniform size. Ultra-small alpha -phase UCNs (similar to 6.3 nm) and bright beta -phase UCNs (similar to 25.5 nm) have been synthesized.
first_indexed 2025-02-19T03:46:13Z
format Journal Article
id ntu-10356/164173
institution Nanyang Technological University
language English
last_indexed 2025-02-19T03:46:13Z
publishDate 2023
record_format dspace
spelling ntu-10356/1641732023-12-29T06:54:17Z Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions Li, Su Chen, Jie Tang, Yu Ying Hu, Lin Yu Qian, Wen Hui Zhu, Dong Chen, Peng School of Chemical and Biomedical Engineering Engineering::Chemical engineering Upconverting Nanoparticles Luminescence We describe a green synthesis of upconversion nanocrystals (UCNs) by adjusting local precursor supersaturation under aqueous conditions at low temperature with size and phase control as well as high production yield. The synthesis allows the separation of nucleation and growth, leading to the formation of small UCNs with a uniform size. Ultra-small alpha -phase UCNs (similar to 6.3 nm) and bright beta -phase UCNs (similar to 25.5 nm) have been synthesized. Ministry of Education (MOE) Published version This work was financially supported by an AcRF tier 2 grant (MOE2017-T2-2-005) from the Ministry of Education (Singapore). We sincerely appreciate the National Natural Science Foundation of China for the financial support (81573388). This work was supported by ‘‘Qing Lan Project of Jiangsu Province’’ and ‘‘Six Talent Peaks Project of Jiangsu Province (YY-032)’’. This work was also supported by the Open Project Program of Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica (No. JKLPSE201805). 2023-01-09T01:24:13Z 2023-01-09T01:24:13Z 2020 Journal Article Li, S., Chen, J., Tang, Y. Y., Hu, L. Y., Qian, W. H., Zhu, D. & Chen, P. (2020). Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions. Materials Advances, 1(8), 2707-2711. https://dx.doi.org/10.1039/D0MA00568A 2633-5409 https://hdl.handle.net/10356/164173 10.1039/D0MA00568A 8 1 2707 2711 en MOE2017- T2-2-005 Materials Advances © 2020 The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. application/pdf
spellingShingle Engineering::Chemical engineering
Upconverting Nanoparticles
Luminescence
Li, Su
Chen, Jie
Tang, Yu Ying
Hu, Lin Yu
Qian, Wen Hui
Zhu, Dong
Chen, Peng
Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions
title Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions
title_full Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions
title_fullStr Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions
title_full_unstemmed Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions
title_short Green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions
title_sort green synthesis of upconversion nanocrystals by adjusting local precursor supersaturation under aqueous conditions
topic Engineering::Chemical engineering
Upconverting Nanoparticles
Luminescence
url https://hdl.handle.net/10356/164173
work_keys_str_mv AT lisu greensynthesisofupconversionnanocrystalsbyadjustinglocalprecursorsupersaturationunderaqueousconditions
AT chenjie greensynthesisofupconversionnanocrystalsbyadjustinglocalprecursorsupersaturationunderaqueousconditions
AT tangyuying greensynthesisofupconversionnanocrystalsbyadjustinglocalprecursorsupersaturationunderaqueousconditions
AT hulinyu greensynthesisofupconversionnanocrystalsbyadjustinglocalprecursorsupersaturationunderaqueousconditions
AT qianwenhui greensynthesisofupconversionnanocrystalsbyadjustinglocalprecursorsupersaturationunderaqueousconditions
AT zhudong greensynthesisofupconversionnanocrystalsbyadjustinglocalprecursorsupersaturationunderaqueousconditions
AT chenpeng greensynthesisofupconversionnanocrystalsbyadjustinglocalprecursorsupersaturationunderaqueousconditions