DataVXAdvanced Optical MaterialsPaper
journal article·2019-08

Tuning Long‐Lived Mn(II) Upconversion Luminescence through Alkaline‐Earth Metal Doping and Energy‐Level Tailoring

Xiaowang Liu, Zhigao Yi, Xian Qin, Hong Liu, Wei Huang, Xiaogang Liu

Advanced Optical Materials· Volume 7· Issue 15
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Source abstract

Abstract

Abstract Crystal‐site engineering of hexagonal‐phase NaGdF4:Mn through alkaline‐earth metal (A2+) doping is used to tune the upconversion luminescence of the Mn2+ dopants. Experimental and calculated results show the ability of A2+ doping to alter the occupancy site of Mn2+ ion from Na+ to Gd3+, thus enabling an emission change from green (520 nm) to yellow (583 nm) upon excitation at 980 nm. The yellow emission of Mn2+ shows a long emission lifetime of 65 ms, more than three times longer than the green emission of Mn2+ (20 ms). The combination of tunable long‐lived Mn2+ emission with lanthanide emission at a single‐particle level provides a convenient route to triple transient upconversion color codes upon dynamic excitation, which offers an attractive optical feature particularly suitable for efficient document encoding.
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Research context

OpenAlex topics: Luminescence Properties of Advanced Materials · Inorganic Fluorides and Related Compounds · Luminescence and Fluorescent Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

MIIT Key Laboratory of Flexible Electronics (KLoFE) and Xi'an Institute of Flexible Electronics Northwestern Polytechnical University Xi'an 710072 Shaanxi China

Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore

Institute for Advanced Interdisciplinary Research (iAIR) University of Jinan Jinan 250022 Shandong China

Key Laboratory of Flexible Electronics Institute of Advanced Materials Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 China

Funding

Fundamental Research Funds for the Central Universities · Ministry of Education - Singapore · Agency for Science, Technology and Research

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