Versatile Ca4F2Si2O7 Host from Defect-Induced Host Emission to White-Light-Emitting Ce3+-Doped Ca4F2Si2O7 Phosphor for Near-UV Solid-State Lighting

Arunkumar Paulraj; Kim Yoon Hwa; Im Won Bin

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Versatile Ca4F2Si2O7 Host from Defect-Induced Host Emission to White-Light-Emitting Ce3+-Doped Ca4F2Si2O7 Phosphor for Near-UV Solid-State Lighting

机译：多功能的Ca4F2Si2O7主体，从缺陷诱导的主体发射到发射白光的Ce3 +掺杂的Ca4F2Si2O7磷光体，用于近紫外固态照明

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White-light-emitting Ca4-xF2Si2O7:xCe(3+) phosphor and violet-light emitting oxyfluoride Ca4F2Si2O7 host were synthesized by solid-state reaction. Ca4-xF2Si2O7:xCe(3+) has strong absorption in the near-UV region (370 nm) and shows a broad emission in the range of 390-600 nm centered at 475 nm. Under 315 rim excitation, a narrow blue emission was observed. The Ca4F2Si2O7 host synthesized under the same reduction conditions exhibited-violet emission due to the formation of anion-deficient nonstoichiorrietric Ca4F2-delta Si2O7+delta/2, species. The broad emission of Ca4F2Si2O7:xCe(3+) phosphor is attributed to Ce3+ occupying two crystallographic calcium sites available in the host. A white LED device was fabricated using Ca4F2Si2O7:Ce3+ without any additive phosphor, displaying excellent CIE chromaticity (0.29, 0.35) close to white emission with a color rendering index of 97. These exceptional optical properties of Ca4F2Si2O7:Ce3+ suggest the promising application of the single activator phosphor that could produce white light under near-UV-based LEDs.

机译：通过固相反应合成了发白光的Ca4-xF2Si2O7：xCe（3+）荧光粉和发紫光的氟化氧Ca4F2Si2O7主体。 Ca4-xF2Si2O7：xCe（3+）在近紫外区（370 nm）具有强吸收，并在以475 nm为中心的390-600 nm范围内显示宽发射。在315边沿激励下，观察到窄的蓝色发射。在相同还原条件下合成的Ca4F2Si2O7主体由于形成了阴离子不足的非化学计量的Ca4F2-δSi2O7 +δ/ 2物种而显示出紫光发射。 Ca4F2Si2O7：xCe（3+）荧光粉的广泛发射归因于Ce3 +占据了宿主中两个可用的结晶钙位点。使用不含任何添加荧光粉的Ca4F2Si2O7：Ce3 +制造的白光LED器件，具有接近白色发射的出色CIE色度（0.29，0.35），显色指数为97。单一活化剂磷光体，可以在基于近紫外线的LED下产生白光。

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《The journal of physical chemistry, C. Nanomaterials and interfaces》 |2016年第8期|共9页
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Arunkumar Paulraj; Kim Yoon Hwa; Im Won Bin;
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1. Versatile Ca4F2Si2O7 Host from Defect-Induced Host Emission to White-Light-Emitting Ce3+-Doped Ca4F2Si2O7 Phosphor for Near-UV Solid-State Lighting [J] . Arunkumar Paulraj, Kim Yoon Hwa, Im Won Bin The journal of physical chemistry, C. Nanomaterials and interfaces . 2016,第8期

机译：多功能的Ca4F2Si2O7主体，从缺陷诱导的主体发射到发射白光的Ce3 +掺杂的Ca4F2Si2O7磷光体，用于近紫外固态照明
2. Versatile Ca4F2Si2O7 Host from Defect-Induced Host Emission to White-Light-Emitting Ce3+-Doped Ca4F2Si2O7 Phosphor for Near-UV Solid-State Lighting [J] . Arunkumar Paulraj, Kim Yoon Hwa, Im Won Bin The journal of physical chemistry, C. Nanomaterials and interfaces . 2016,第8期

机译：多功能的Ca4F2Si2O7主体，从缺陷诱导的主体发射到发射白光的Ce3 +掺杂的Ca4F2Si2O7磷光体，用于近紫外固态照明
3. LaSr2A1O5, a Versatile Host Compound for Ce~(3+)-Based Yellow Phosphors: Structural Tuning of Optical Properties and Use in Solid-State White Lighting [J] . Won Bin Im, Natalie N. Fellows, Steven P. DenBaars Chemistry of Materials: A Publication of the American Chemistry Society . 2009,第13期

机译：LaSr2A1O5，基于Ce〜（3+）的黄色荧光体的多功能主体化合物：光学性质的结构调整和在固态白光中的使用
4. Novel Inorganic Borate Host Phosphor K_2Al2B_2O_7:Dy~(3+) For LED Based Solid State Lighting [C] . R.S. Palaspagar, R.P. Sonekar, S.K. Omanwar RAM 2013 . 2013

机译：新型无机硼酸孔磷光体K_2Al2B_2O_7：DY〜（3+）用于LED基固态照明
5. Design and Optimization of Phosphors for Solid-State Lighting using First-Principles Calculations [D] . Wang, Zhenbin. 2018

机译：使用第一性原理计算的固态照明荧光粉的设计和优化
6. Single-Component Color-Tunable Gd(pic)3: Eu3+ Phosphor Based on a Metal–Organic Frameworkfor Near-UV White-Light-Emitting Diodes [O] . Mei Qu, Huan Li, Yanwu Zhao, 2019

机译：基于金属-有机骨架的单组分可调谐色的Gd（pic）3：Eu3 +荧光粉用于近紫外白光发光二极管
7. New single-phase, white-light-emitting phosphors based on δ-Gd 2Si2O7 for solid-state lighting [O] . Fernández-Carrión, A.J., Ocaña, Manuel, García-Sevillano, J., 2014

机译：基于δ-Gd2Si2O7的新型单相发白光磷光体，用于固态照明

Versatile Ca4F2Si2O7 Host from Defect-Induced Host Emission to White-Light-Emitting Ce3+-Doped Ca4F2Si2O7 Phosphor for Near-UV Solid-State Lighting

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