TY  - JOUR
AU  - Hong, Junyu
AU  - Liu, Feilong
AU  - Dramićanin, Miroslav
AU  - Zhou, Lei
AU  - Wu, Mingmei
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11366
AB  - To develop novel luminescent materials for optical temperature measurement, a series of Yb3+- and Er3+-doped Ca3Sc2Si3O12 (CSS) upconversion (UC) phosphors were synthesized by the sol– gel combustion method. The crystal structure, phase purity, and element distribution of the samples were characterized by powder X-ray diffraction and a transmission electron microscope (TEM). The detailed study of the photoluminescence emission spectra of the samples shows that the addition of Yb3+ can greatly enhance the emission of Er3+ by effective energy transfer. The prepared Yb3+ and Er3+ co-doped CSS phosphors exhibit green emission bands near 522 and 555 nm and red emission bands near 658 nm, which correspond to the 2H11/2→4 I15/2, 4S3/2→4 I15/2, and 4F9/2→4 I15/2 transitions of Er3+, respectively. The temperature-dependent behavior of the CSS:0.2Yb3+,0.02Er3+ sample was carefully studied by the fluorescence intensity ratio (FIR) technique. The results indicate the excellent sensitivity of the sample, with a maximum absolute sensitivity of 0.67% K−1 at 500 K and a relative sensitivity of 1.34% K−1 at 300 K. We demonstrate here that the temperature measurement performance of FIR technology using the CSS:Yb3+,Er3+ phosphor is not inferior to that of infrared thermal imaging thermometers. Therefore, CSS:Yb3+,Er3+ phosphors have great potential applications in the field of optical thermometry.
T2  - Nanomaterials
T1  - The Upconversion Luminescence of Ca3Sc2Si3O12:Yb3+,Er3+ and Its Application in Thermometry
VL  - 13
IS  - 13
SP  - 1910
DO  - 10.3390/nano13131910
ER  - 

@article{
author = "Hong, Junyu and Liu, Feilong and Dramićanin, Miroslav and Zhou, Lei and Wu, Mingmei",
year = "2023",
abstract = "To develop novel luminescent materials for optical temperature measurement, a series of Yb3+- and Er3+-doped Ca3Sc2Si3O12 (CSS) upconversion (UC) phosphors were synthesized by the sol– gel combustion method. The crystal structure, phase purity, and element distribution of the samples were characterized by powder X-ray diffraction and a transmission electron microscope (TEM). The detailed study of the photoluminescence emission spectra of the samples shows that the addition of Yb3+ can greatly enhance the emission of Er3+ by effective energy transfer. The prepared Yb3+ and Er3+ co-doped CSS phosphors exhibit green emission bands near 522 and 555 nm and red emission bands near 658 nm, which correspond to the 2H11/2→4 I15/2, 4S3/2→4 I15/2, and 4F9/2→4 I15/2 transitions of Er3+, respectively. The temperature-dependent behavior of the CSS:0.2Yb3+,0.02Er3+ sample was carefully studied by the fluorescence intensity ratio (FIR) technique. The results indicate the excellent sensitivity of the sample, with a maximum absolute sensitivity of 0.67% K−1 at 500 K and a relative sensitivity of 1.34% K−1 at 300 K. We demonstrate here that the temperature measurement performance of FIR technology using the CSS:Yb3+,Er3+ phosphor is not inferior to that of infrared thermal imaging thermometers. Therefore, CSS:Yb3+,Er3+ phosphors have great potential applications in the field of optical thermometry.",
journal = "Nanomaterials",
title = "The Upconversion Luminescence of Ca3Sc2Si3O12:Yb3+,Er3+ and Its Application in Thermometry",
volume = "13",
number = "13",
pages = "1910",
doi = "10.3390/nano13131910"
}

Hong, J., Liu, F., Dramićanin, M., Zhou, L.,& Wu, M.. (2023). The Upconversion Luminescence of Ca3Sc2Si3O12:Yb3+,Er3+ and Its Application in Thermometry. in Nanomaterials, 13(13), 1910.
https://doi.org/10.3390/nano13131910

Hong J, Liu F, Dramićanin M, Zhou L, Wu M. The Upconversion Luminescence of Ca3Sc2Si3O12:Yb3+,Er3+ and Its Application in Thermometry. in Nanomaterials. 2023;13(13):1910.
doi:10.3390/nano13131910 .

Hong, Junyu, Liu, Feilong, Dramićanin, Miroslav, Zhou, Lei, Wu, Mingmei, "The Upconversion Luminescence of Ca3Sc2Si3O12:Yb3+,Er3+ and Its Application in Thermometry" in Nanomaterials, 13, no. 13 (2023):1910,
https://doi.org/10.3390/nano13131910 . .

TY  - JOUR
AU  - Liu, Feilong
AU  - Yingyuan, Chen
AU  - Milićević, Bojana R.
AU  - Jiang, Chunyan
AU  - Huang, Senchuan
AU  - Zhou, Lei
AU  - Zhou, Jianbang
AU  - Wu, Mingmei
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10605
AB  - A facile strategy to modify the surface of K2SiF6:Mn4+ (KSFM) with commercially available hydrophilic hydroquinone (HQ) has been developed and waterproof stability (moisture resistance) of the KSFM has been significantly improved. It has been demonstrated that there are strong interactions between KSFM and HQ on the interface due to the hydrogen bonds of fluorine in KSFM with hydrogen in HQ. The relative luminous intensity of HQ-modified KSFM (denoted as KSFM-HQ) remained 99.7% of its initial value after immersion in water for 336 h, remarkable higher than that of KSFM which remained only 38.0%. It is proposed that the high water resistance of KSFM-HQ is achieved via two possible mechanisms: in situ decomposition of dark brown manganese (owing to the hydrolysis of [MnF6]2−) on the KSFM crystal surface and consequently the formation of a more protective Mn4+-free layer. The process effectively combines the advantages of transparent organic materials (herein HQ) before immersion in water and durable moisture resistance of inorganic materials (herein K2SiF6) on surface after immersion in water. The importance of HQ loading on moisture-sensitive fluoride phosphors has been further confirmed by using HQ-treated K2GeF6:Mn4+ (KGFM) as an additional example. This strategy provides a one-of-a-kind way to the development of water-resistant Mn4+-doped fluoride phosphors with high luminous stability for potential applications in water-borne fluorescent anti-counterfeiting ink and even warm WLEDs operating in high humidity. © 2023
T2  - Colloids and Surfaces. A: Physicochemical and Engineering Aspects
T1  - Hydroquinone-modified Mn4+-activated fluoride red phosphors with improved water-resistance
VL  - 661
DO  - 10.1016/j.colsurfa.2023.130954
ER  - 

@article{
author = "Liu, Feilong and Yingyuan, Chen and Milićević, Bojana R. and Jiang, Chunyan and Huang, Senchuan and Zhou, Lei and Zhou, Jianbang and Wu, Mingmei",
year = "2023",
abstract = "A facile strategy to modify the surface of K2SiF6:Mn4+ (KSFM) with commercially available hydrophilic hydroquinone (HQ) has been developed and waterproof stability (moisture resistance) of the KSFM has been significantly improved. It has been demonstrated that there are strong interactions between KSFM and HQ on the interface due to the hydrogen bonds of fluorine in KSFM with hydrogen in HQ. The relative luminous intensity of HQ-modified KSFM (denoted as KSFM-HQ) remained 99.7% of its initial value after immersion in water for 336 h, remarkable higher than that of KSFM which remained only 38.0%. It is proposed that the high water resistance of KSFM-HQ is achieved via two possible mechanisms: in situ decomposition of dark brown manganese (owing to the hydrolysis of [MnF6]2−) on the KSFM crystal surface and consequently the formation of a more protective Mn4+-free layer. The process effectively combines the advantages of transparent organic materials (herein HQ) before immersion in water and durable moisture resistance of inorganic materials (herein K2SiF6) on surface after immersion in water. The importance of HQ loading on moisture-sensitive fluoride phosphors has been further confirmed by using HQ-treated K2GeF6:Mn4+ (KGFM) as an additional example. This strategy provides a one-of-a-kind way to the development of water-resistant Mn4+-doped fluoride phosphors with high luminous stability for potential applications in water-borne fluorescent anti-counterfeiting ink and even warm WLEDs operating in high humidity. © 2023",
journal = "Colloids and Surfaces. A: Physicochemical and Engineering Aspects",
title = "Hydroquinone-modified Mn4+-activated fluoride red phosphors with improved water-resistance",
volume = "661",
doi = "10.1016/j.colsurfa.2023.130954"
}

Liu, F., Yingyuan, C., Milićević, B. R., Jiang, C., Huang, S., Zhou, L., Zhou, J.,& Wu, M.. (2023). Hydroquinone-modified Mn4+-activated fluoride red phosphors with improved water-resistance. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 661.
https://doi.org/10.1016/j.colsurfa.2023.130954

Liu F, Yingyuan C, Milićević BR, Jiang C, Huang S, Zhou L, Zhou J, Wu M. Hydroquinone-modified Mn4+-activated fluoride red phosphors with improved water-resistance. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects. 2023;661.
doi:10.1016/j.colsurfa.2023.130954 .

Liu, Feilong, Yingyuan, Chen, Milićević, Bojana R., Jiang, Chunyan, Huang, Senchuan, Zhou, Lei, Zhou, Jianbang, Wu, Mingmei, "Hydroquinone-modified Mn4+-activated fluoride red phosphors with improved water-resistance" in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 661 (2023),
https://doi.org/10.1016/j.colsurfa.2023.130954 . .