The Experts below are selected from a list of 387 Experts worldwide ranked by ideXlab platform

Jing Wang - One of the best experts on this subject based on the ideXlab platform.

  • hf free hydrothermal route for synthesis of highly efficient narrow band red emitting phosphor k2si1 xf6 xmn4 for warm white light emitting diodes
    Chemistry of Materials, 2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show ...

  • HF-Free Hydrothermal Route for Synthesis of Highly Efficient Narrow-Band Red Emitting Phosphor K2Si1–xF6:xMn4+ for Warm White Light-Emitting Diodes
    2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)­nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show that our hydrothermal strategy based on low-toxic H3PO4/KHF2 solution system will open the opportunity for the narrow red emitting A2MF6:Mn4+ to be synthesized in large scale toward white LED industry adoptions

Lin Huang - One of the best experts on this subject based on the ideXlab platform.

  • hf free hydrothermal route for synthesis of highly efficient narrow band red emitting phosphor k2si1 xf6 xmn4 for warm white light emitting diodes
    Chemistry of Materials, 2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show ...

  • HF-Free Hydrothermal Route for Synthesis of Highly Efficient Narrow-Band Red Emitting Phosphor K2Si1–xF6:xMn4+ for Warm White Light-Emitting Diodes
    2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)­nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show that our hydrothermal strategy based on low-toxic H3PO4/KHF2 solution system will open the opportunity for the narrow red emitting A2MF6:Mn4+ to be synthesized in large scale toward white LED industry adoptions

Qiang Su - One of the best experts on this subject based on the ideXlab platform.

  • studies of terbium bridge saturation phenomenon significance of sensitizer and mechanisms of energy transfer and luminescence quenching
    ACS Applied Materials & Interfaces, 2014
    Co-Authors: Mingmei Wu, Qiang Su
    Abstract:

    Terbium chain in the form of S → (Tb3+)n → A (S = Ce3+ or Eu2+, A = Eu3+), as a promising energy transfer (ET) approach, has been proposed to enhance Eu3+ emission for solid-state lighting. However, the viewpoint of ET from S to A via the terbium chain (Tb3+–Tb3+–Tb3+–...) is very doubtful. Here, hosts of Ba3Ln(PO4)3, LnPO4, LnBO3, and Na2Ln2B2O7 doped with Ce3+ → (Tb3+)n → Eu3+ or (Tb3+)n → Eu3+ are synthesized to prove the universality of S → (Tb3+)n → A in inorganic hosts and to study the unsolved issues. Saturation distance of Tb3+–Eu3+, estimated with the empirical data of different hosts, is proposed to be a criterion for determining whether a spectral Chromaticity Coordinate keeps constant. A branch model is put forward to replace the chain model to explain the role of (Tb3+)n in ET from Ce3+ to Eu3+ and the necessity of high content of Tb3+; the term “terbium bridge” is used to replace “terbium chain”, and the value of n is determined to be two or three. The intensity quenching of Eu3+ emission is...

Xuejie Zhang - One of the best experts on this subject based on the ideXlab platform.

  • hf free hydrothermal route for synthesis of highly efficient narrow band red emitting phosphor k2si1 xf6 xmn4 for warm white light emitting diodes
    Chemistry of Materials, 2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show ...

  • HF-Free Hydrothermal Route for Synthesis of Highly Efficient Narrow-Band Red Emitting Phosphor K2Si1–xF6:xMn4+ for Warm White Light-Emitting Diodes
    2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)­nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show that our hydrothermal strategy based on low-toxic H3PO4/KHF2 solution system will open the opportunity for the narrow red emitting A2MF6:Mn4+ to be synthesized in large scale toward white LED industry adoptions

Yiwen Zhu - One of the best experts on this subject based on the ideXlab platform.

  • hf free hydrothermal route for synthesis of highly efficient narrow band red emitting phosphor k2si1 xf6 xmn4 for warm white light emitting diodes
    Chemistry of Materials, 2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show ...

  • HF-Free Hydrothermal Route for Synthesis of Highly Efficient Narrow-Band Red Emitting Phosphor K2Si1–xF6:xMn4+ for Warm White Light-Emitting Diodes
    2016
    Co-Authors: Lin Huang, Yiwen Zhu, Xuejie Zhang, Rui Zou, Fengjuan Pan, Jing Wang
    Abstract:

    With superior photoluminescent properties, the recently discovered A2MF6:Mn4+ material holds the potential in replacing the commercial rare-earth-doped (oxy)­nitride phosphors for solid state lighting and display. We report here a green synthetic route to synthesize narrow red emitting K2SiF6:Mn4+ without the usage of toxic and volatile HF solution. We show that K2SiF6:Mn4+ is produced in common low-toxic H3PO4/KHF2 liquid instead of high-toxic HF liquid and systematically investigate its morphology and photoluminescence properties. Moreover, the reaction mechanism is comprehensively discussed in detail. We find that not only does H3PO4/KHF2 play the same key roles as HF in the process of stabilizing Mn4+ and promoting Mn4+ into the host K2SiF6, but also it exhibits more excellent ability than HF in controlling the concentration of Mn4+ ion in the host K2SiF6. By demonstrating its application in white light-emitting diode (LED) with tunable Chromaticity Coordinate and correlated color temperature, we show that our hydrothermal strategy based on low-toxic H3PO4/KHF2 solution system will open the opportunity for the narrow red emitting A2MF6:Mn4+ to be synthesized in large scale toward white LED industry adoptions