Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State Synthesis
Mn<sup>2+</sup>-doped phosphors emitting green light have garnered significant interest due to their potential applications in display technologies and solid-state lighting. To facilitate the rapid synthesis of high-performance Mn<sup>2+</sup>-activated green phosphors, this...
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2025-07-01
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| author | Xiaomeng Wang Siyi Wei Jiaping Zhang Jiaren Du Yukun Li Ke Chen Hengwei Lin |
| author_facet | Xiaomeng Wang Siyi Wei Jiaping Zhang Jiaren Du Yukun Li Ke Chen Hengwei Lin |
| author_sort | Xiaomeng Wang |
| collection | DOAJ |
| description | Mn<sup>2+</sup>-doped phosphors emitting green light have garnered significant interest due to their potential applications in display technologies and solid-state lighting. To facilitate the rapid synthesis of high-performance Mn<sup>2+</sup>-activated green phosphors, this research optimizes a microwave-assisted solid-state (MASS) method for the preparation of Na<sub>2</sub>ZnGeO<sub>4</sub>:Mn<sup>2+</sup>. Leveraging the unique attributes of the MASS technique, a systematic investigation into the applicability of various Mn-source precursors was conducted. Additionally, the integration of the MASS approach with traditional solid-state reaction (SSR) methods was assessed. The findings indicate that the MASS technique effectively incorporates Mn ions from diverse precursors (including higher oxidation states of manganese) into the crystal lattice, resulting in efficient green emission from Mn<sup>2+</sup>. Notably, the photoluminescence quantum yield (PLQY) of the sample utilizing MnCO<sub>3</sub> as the manganese precursor was recorded at 2.67%, whereas the sample synthesized from MnO<sub>2</sub> exhibited a remarkable PLQY of 17.69%. Moreover, the post-treatment of SSR-derived samples through the MASS process significantly enhanced the PLQY from 0.67% to 8.66%. These results underscore the promise of the MASS method as a novel and efficient synthesis strategy for the rapid and scalable production of Mn<sup>2+</sup>-doped green luminescent materials. |
| format | Article |
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| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj-art-775816ca1b504063ade1a8db737b58392025-08-20T03:56:47ZengMDPI AGNanomaterials2079-49912025-07-011514111710.3390/nano15141117Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State SynthesisXiaomeng Wang0Siyi Wei1Jiaping Zhang2Jiaren Du3Yukun Li4Ke Chen5Hengwei Lin6International Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, ChinaInternational Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, ChinaInternational Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, ChinaInternational Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, ChinaInternational Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, ChinaInternational Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, ChinaInternational Joint Research Center for Photo-Responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, ChinaMn<sup>2+</sup>-doped phosphors emitting green light have garnered significant interest due to their potential applications in display technologies and solid-state lighting. To facilitate the rapid synthesis of high-performance Mn<sup>2+</sup>-activated green phosphors, this research optimizes a microwave-assisted solid-state (MASS) method for the preparation of Na<sub>2</sub>ZnGeO<sub>4</sub>:Mn<sup>2+</sup>. Leveraging the unique attributes of the MASS technique, a systematic investigation into the applicability of various Mn-source precursors was conducted. Additionally, the integration of the MASS approach with traditional solid-state reaction (SSR) methods was assessed. The findings indicate that the MASS technique effectively incorporates Mn ions from diverse precursors (including higher oxidation states of manganese) into the crystal lattice, resulting in efficient green emission from Mn<sup>2+</sup>. Notably, the photoluminescence quantum yield (PLQY) of the sample utilizing MnCO<sub>3</sub> as the manganese precursor was recorded at 2.67%, whereas the sample synthesized from MnO<sub>2</sub> exhibited a remarkable PLQY of 17.69%. Moreover, the post-treatment of SSR-derived samples through the MASS process significantly enhanced the PLQY from 0.67% to 8.66%. These results underscore the promise of the MASS method as a novel and efficient synthesis strategy for the rapid and scalable production of Mn<sup>2+</sup>-doped green luminescent materials.https://www.mdpi.com/2079-4991/15/14/1117Na<sub>2</sub>ZnGeO<sub>4</sub>:Mn<sup>2+</sup>microwave-assisted synthesisgreen emitting phosphor |
| spellingShingle | Xiaomeng Wang Siyi Wei Jiaping Zhang Jiaren Du Yukun Li Ke Chen Hengwei Lin Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State Synthesis Nanomaterials Na<sub>2</sub>ZnGeO<sub>4</sub>:Mn<sup>2+</sup> microwave-assisted synthesis green emitting phosphor |
| title | Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State Synthesis |
| title_full | Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State Synthesis |
| title_fullStr | Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State Synthesis |
| title_full_unstemmed | Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State Synthesis |
| title_short | Preparation and Optimization of Mn<sup>2+</sup>-Activated Na<sub>2</sub>ZnGeO<sub>4</sub> Phosphors: Insights into Precursor Selection and Microwave-Assisted Solid-State Synthesis |
| title_sort | preparation and optimization of mn sup 2 sup activated na sub 2 sub zngeo sub 4 sub phosphors insights into precursor selection and microwave assisted solid state synthesis |
| topic | Na<sub>2</sub>ZnGeO<sub>4</sub>:Mn<sup>2+</sup> microwave-assisted synthesis green emitting phosphor |
| url | https://www.mdpi.com/2079-4991/15/14/1117 |
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