TY  - JOUR
AU  - Wang, Zhengliang
AU  - Yang, Zhiyu
AU  - Wang, Nan
AU  - Zhou, Qiang
AU  - Zhou, Jianbang
AU  - Ma, Li
AU  - Wang, Xiaojun
AU  - Xu, Yiqing
AU  - Brik, Mikhail G.
AU  - Dramićanin, Miroslav
AU  - Wu, Mingmei
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8791
AB  - Crystal phosphors have many unique advantages compared with powdery ones. Herein, room-temperature-grown millimeter-sized single-crystal phosphors of Cs2XF6:Mn4+ (X = Ge, Si, and Ti) with remarkably higher external quantum efficiency than the corresponding powdery samples are reported. In addition, as compared with the powdery ones, the crystal samples exhibit much better stability toward water under different pH conditions. The red light-emitting diodes (LEDs) based on Cs2XF6:Mn4+ crystals show significantly improved luminous efficiency than those based on their corresponding powders. An assembled white LED device composed of the two layers of phosphors, i.e., the crystal (such as Cs2GeF6:Mn4+) and commercial Y3Al5O12:Ce3+, on a blue chip exhibits intense warm white light with high luminous efficiency (up to 193 lm W−1), high color rendering indexes (88), and low correlated color temperatures (3107 K). Hence, these crystals with greatly improved efficiency and stability can be potentially applied in high-quality LED backlighting display and white LED lighting, especially inside the micro-LED devices. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - Advanced Optical Materials
T1  - Single‐Crystal Red Phosphors: Enhanced Optical Efficiency and Improved Chemical Stability for wLEDs
VL  - 8
IS  - 6
SP  - 1901512
DO  - 10.1002/adom.201901512
ER  - 

@article{
author = "Wang, Zhengliang and Yang, Zhiyu and Wang, Nan and Zhou, Qiang and Zhou, Jianbang and Ma, Li and Wang, Xiaojun and Xu, Yiqing and Brik, Mikhail G. and Dramićanin, Miroslav and Wu, Mingmei",
year = "2020",
abstract = "Crystal phosphors have many unique advantages compared with powdery ones. Herein, room-temperature-grown millimeter-sized single-crystal phosphors of Cs2XF6:Mn4+ (X = Ge, Si, and Ti) with remarkably higher external quantum efficiency than the corresponding powdery samples are reported. In addition, as compared with the powdery ones, the crystal samples exhibit much better stability toward water under different pH conditions. The red light-emitting diodes (LEDs) based on Cs2XF6:Mn4+ crystals show significantly improved luminous efficiency than those based on their corresponding powders. An assembled white LED device composed of the two layers of phosphors, i.e., the crystal (such as Cs2GeF6:Mn4+) and commercial Y3Al5O12:Ce3+, on a blue chip exhibits intense warm white light with high luminous efficiency (up to 193 lm W−1), high color rendering indexes (88), and low correlated color temperatures (3107 K). Hence, these crystals with greatly improved efficiency and stability can be potentially applied in high-quality LED backlighting display and white LED lighting, especially inside the micro-LED devices. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "Advanced Optical Materials",
title = "Single‐Crystal Red Phosphors: Enhanced Optical Efficiency and Improved Chemical Stability for wLEDs",
volume = "8",
number = "6",
pages = "1901512",
doi = "10.1002/adom.201901512"
}

Wang, Z., Yang, Z., Wang, N., Zhou, Q., Zhou, J., Ma, L., Wang, X., Xu, Y., Brik, M. G., Dramićanin, M.,& Wu, M.. (2020). Single‐Crystal Red Phosphors: Enhanced Optical Efficiency and Improved Chemical Stability for wLEDs. in Advanced Optical Materials, 8(6), 1901512.
https://doi.org/10.1002/adom.201901512

Wang Z, Yang Z, Wang N, Zhou Q, Zhou J, Ma L, Wang X, Xu Y, Brik MG, Dramićanin M, Wu M. Single‐Crystal Red Phosphors: Enhanced Optical Efficiency and Improved Chemical Stability for wLEDs. in Advanced Optical Materials. 2020;8(6):1901512.
doi:10.1002/adom.201901512 .

Wang, Zhengliang, Yang, Zhiyu, Wang, Nan, Zhou, Qiang, Zhou, Jianbang, Ma, Li, Wang, Xiaojun, Xu, Yiqing, Brik, Mikhail G., Dramićanin, Miroslav, Wu, Mingmei, "Single‐Crystal Red Phosphors: Enhanced Optical Efficiency and Improved Chemical Stability for wLEDs" in Advanced Optical Materials, 8, no. 6 (2020):1901512,
https://doi.org/10.1002/adom.201901512 . .

TY  - JOUR
AU  - Zhou, Qiang
AU  - Dolgov, Leonid
AU  - Srivastava, Alok M
AU  - Zhou, Lei
AU  - Wang, Zhengliang
AU  - Shi, Jianxin
AU  - Dramićanin, Miroslav
AU  - Brik, Mikhail G.
AU  - Wu, Mingmei
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7638
AB  - Transition-metal activated phosphors are an important family of luminescent materials that can produce white light with an outstanding color rendering index and correlated color temperature for use in light-emitting diodes.  In recent years, work in this quite “hot” research field has focused on the development of Mn2+ and Mn4+ activated red phosphors. In this review article, we provide an overview of recent studies on Mn2+ and Mn4+ doped phosphors, including detailed synthesis routes (solid-state reaction and wet-chemical synthesis) and description of luminescence mechanisms and phosphors’ behaviors; discuss their promising applications in white light-emitting diodes; and present an extensive list of references to representative works in this field.
T2  - Journal of Materials Chemistry C
T1  - Mn 2+ and Mn 4+ red phosphors: synthesis, luminescence and applications in WLEDs. A review
VL  - 6
IS  - 11
SP  - 2652
EP  - 2671
DO  - 10.1039/C8TC00251G
ER  - 

@article{
author = "Zhou, Qiang and Dolgov, Leonid and Srivastava, Alok M and Zhou, Lei and Wang, Zhengliang and Shi, Jianxin and Dramićanin, Miroslav and Brik, Mikhail G. and Wu, Mingmei",
year = "2018",
abstract = "Transition-metal activated phosphors are an important family of luminescent materials that can produce white light with an outstanding color rendering index and correlated color temperature for use in light-emitting diodes.  In recent years, work in this quite “hot” research field has focused on the development of Mn2+ and Mn4+ activated red phosphors. In this review article, we provide an overview of recent studies on Mn2+ and Mn4+ doped phosphors, including detailed synthesis routes (solid-state reaction and wet-chemical synthesis) and description of luminescence mechanisms and phosphors’ behaviors; discuss their promising applications in white light-emitting diodes; and present an extensive list of references to representative works in this field.",
journal = "Journal of Materials Chemistry C",
title = "Mn 2+ and Mn 4+ red phosphors: synthesis, luminescence and applications in WLEDs. A review",
volume = "6",
number = "11",
pages = "2652-2671",
doi = "10.1039/C8TC00251G"
}

Zhou, Q., Dolgov, L., Srivastava, A. M., Zhou, L., Wang, Z., Shi, J., Dramićanin, M., Brik, M. G.,& Wu, M.. (2018). Mn 2+ and Mn 4+ red phosphors: synthesis, luminescence and applications in WLEDs. A review. in Journal of Materials Chemistry C, 6(11), 2652-2671.
https://doi.org/10.1039/C8TC00251G

Zhou Q, Dolgov L, Srivastava AM, Zhou L, Wang Z, Shi J, Dramićanin M, Brik MG, Wu M. Mn 2+ and Mn 4+ red phosphors: synthesis, luminescence and applications in WLEDs. A review. in Journal of Materials Chemistry C. 2018;6(11):2652-2671.
doi:10.1039/C8TC00251G .

Zhou, Qiang, Dolgov, Leonid, Srivastava, Alok M, Zhou, Lei, Wang, Zhengliang, Shi, Jianxin, Dramićanin, Miroslav, Brik, Mikhail G., Wu, Mingmei, "Mn 2+ and Mn 4+ red phosphors: synthesis, luminescence and applications in WLEDs. A review" in Journal of Materials Chemistry C, 6, no. 11 (2018):2652-2671,
https://doi.org/10.1039/C8TC00251G . .