Key role of Nb5+ in achieving water-resistant red emission in K2Ta1-xNbxF7:Mn4+ phosphors
Само за регистроване кориснике
2023
Аутори
Wang, YunfengZhu, Qijian
Li, Junhao
Milićević, Bojana R.
Zhou, Rongfu
Liu, Shuanglai
Zhang, Qiuhong
Huo, Jiansheng
Zhou, Jianbang
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Mn4+-activated fluoride is one of the most important red phosphors for white light-emitting diodes (WLEDs) with high color rendering index (CRI). Due to a lack of water resistance, their potential applications are limited. Although surface coating strategies improve the waterproof stability of fluoride red phosphors, they have downsides. It was found that Nb5+ plays an important role in improving the water resistance of Mn4+-activated oxyfluorides by preventing the hydrolysis of [MnF6]2-. In this work, the influence of Nb5+ on the waterproof stability of Mn4+-activated fluorides was explored. A set of synthesized K2Ta1-xNbxF7:Mn4+ phosphors exhibit tunable and superior water resistance. The photoluminescence (PL) intensity of the representative sample K2Ta0.6Nb0.4F7:5%Mn4+ remains nearly 100% of its initial value even after being immersed in water for 60 min, which is significantly higher than the commercial K2SiF6:Mn4+ red phosphor (8.7%). Our findings open up new possibilities for the... development of waterproof fluoride red phosphors. © 2023 Elsevier Ltd and Techna Group S.r.l.
Извор:
Ceramics International, 2023, 49, 16, 27024-27029Финансирање / пројекти:
- National Nature Science Foundation of China [No. 52272143, 52102194]
- Science and Technology Project of Guangzhou City [No. 2023A04J0299]
- Major Science and Technology Project of Jiangxi Province-The Open Competition Mechanism to Select the Best Candidates [No. 20223AAE01003]
- Guangdong Basic and Applied Basic Research Foundation [No. 2021A1515010449, 2021A1515110404, 2021A1515111159]
- Major Science and Technology Project of Zhongshan City [No. 2022A1007]
- GDAS’ Project of Science and Technology Development [No. 2022GDASZH-2022010104, 2023GDASZH-2023010104]
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
DOI: 10.1016/j.ceramint.2023.05.244
ISSN: 0272-8842
WoS: 001030022800001
Scopus: 2-s2.0-85160393396
Колекције
Институција/група
VinčaTY - JOUR AU - Wang, Yunfeng AU - Zhu, Qijian AU - Li, Junhao AU - Milićević, Bojana R. AU - Zhou, Rongfu AU - Liu, Shuanglai AU - Zhang, Qiuhong AU - Huo, Jiansheng AU - Zhou, Jianbang PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/11079 AB - Mn4+-activated fluoride is one of the most important red phosphors for white light-emitting diodes (WLEDs) with high color rendering index (CRI). Due to a lack of water resistance, their potential applications are limited. Although surface coating strategies improve the waterproof stability of fluoride red phosphors, they have downsides. It was found that Nb5+ plays an important role in improving the water resistance of Mn4+-activated oxyfluorides by preventing the hydrolysis of [MnF6]2-. In this work, the influence of Nb5+ on the waterproof stability of Mn4+-activated fluorides was explored. A set of synthesized K2Ta1-xNbxF7:Mn4+ phosphors exhibit tunable and superior water resistance. The photoluminescence (PL) intensity of the representative sample K2Ta0.6Nb0.4F7:5%Mn4+ remains nearly 100% of its initial value even after being immersed in water for 60 min, which is significantly higher than the commercial K2SiF6:Mn4+ red phosphor (8.7%). Our findings open up new possibilities for the development of waterproof fluoride red phosphors. © 2023 Elsevier Ltd and Techna Group S.r.l. T2 - Ceramics International T1 - Key role of Nb5+ in achieving water-resistant red emission in K2Ta1-xNbxF7:Mn4+ phosphors VL - 49 IS - 16 SP - 27024 EP - 27029 DO - 10.1016/j.ceramint.2023.05.244 ER -
@article{ author = "Wang, Yunfeng and Zhu, Qijian and Li, Junhao and Milićević, Bojana R. and Zhou, Rongfu and Liu, Shuanglai and Zhang, Qiuhong and Huo, Jiansheng and Zhou, Jianbang", year = "2023", abstract = "Mn4+-activated fluoride is one of the most important red phosphors for white light-emitting diodes (WLEDs) with high color rendering index (CRI). Due to a lack of water resistance, their potential applications are limited. Although surface coating strategies improve the waterproof stability of fluoride red phosphors, they have downsides. It was found that Nb5+ plays an important role in improving the water resistance of Mn4+-activated oxyfluorides by preventing the hydrolysis of [MnF6]2-. In this work, the influence of Nb5+ on the waterproof stability of Mn4+-activated fluorides was explored. A set of synthesized K2Ta1-xNbxF7:Mn4+ phosphors exhibit tunable and superior water resistance. The photoluminescence (PL) intensity of the representative sample K2Ta0.6Nb0.4F7:5%Mn4+ remains nearly 100% of its initial value even after being immersed in water for 60 min, which is significantly higher than the commercial K2SiF6:Mn4+ red phosphor (8.7%). Our findings open up new possibilities for the development of waterproof fluoride red phosphors. © 2023 Elsevier Ltd and Techna Group S.r.l.", journal = "Ceramics International", title = "Key role of Nb5+ in achieving water-resistant red emission in K2Ta1-xNbxF7:Mn4+ phosphors", volume = "49", number = "16", pages = "27024-27029", doi = "10.1016/j.ceramint.2023.05.244" }
Wang, Y., Zhu, Q., Li, J., Milićević, B. R., Zhou, R., Liu, S., Zhang, Q., Huo, J.,& Zhou, J.. (2023). Key role of Nb5+ in achieving water-resistant red emission in K2Ta1-xNbxF7:Mn4+ phosphors. in Ceramics International, 49(16), 27024-27029. https://doi.org/10.1016/j.ceramint.2023.05.244
Wang Y, Zhu Q, Li J, Milićević BR, Zhou R, Liu S, Zhang Q, Huo J, Zhou J. Key role of Nb5+ in achieving water-resistant red emission in K2Ta1-xNbxF7:Mn4+ phosphors. in Ceramics International. 2023;49(16):27024-27029. doi:10.1016/j.ceramint.2023.05.244 .
Wang, Yunfeng, Zhu, Qijian, Li, Junhao, Milićević, Bojana R., Zhou, Rongfu, Liu, Shuanglai, Zhang, Qiuhong, Huo, Jiansheng, Zhou, Jianbang, "Key role of Nb5+ in achieving water-resistant red emission in K2Ta1-xNbxF7:Mn4+ phosphors" in Ceramics International, 49, no. 16 (2023):27024-27029, https://doi.org/10.1016/j.ceramint.2023.05.244 . .