Photoluminescence properties and energy transfer in color tunable BaY2Si3O10:Ce,Tb phosphors

Xia, Zhanggen; Liang, Yujun; Yu, Dongyan; Zhang, Mengfei; Huang, Wenzhu; Tong, Miaohui; Wu, Jia‐Min; Zhao, Jianwen

doi:10.1016/j.optlastec.2013.09.014

Cited by 53 publications

(15 citation statements)

References 40 publications

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“…to Tb 3? in BaY 2 Si 3 O 10 was also reported by Xia et al [11]; the critical energy transfer distance was calculated to be 5.05 Å by the concentration quenching method, which was relatively short and energy transfer mechanism was proved to be the exchange interaction. For the aluminate and phosphate compounds, such as ZnAl 2 O 4 , CaYAl 3 O 7 , Sr 2 P 2 O 7 , Sr 3 Gd(PO 4 ) 3 and KSrY(PO 4 ) 2 , the available energy transfer between Ce 3? and Tb 3?…”

Section: Introductionsupporting

confidence: 63%

Luminescence properties and energy transfer in Ca3(PO4)2:Ce3+, Tb3+ phosphors

Wang

Chen

et al. 2015

Appl. Phys. A

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A series of Ce 3? , Tb 3? and Ce 3? -Tb 3? -doped Ca 3 (PO 4 ) 2 were prepared by high-temperature solid-state reaction, and X-ray diffraction was used to characterize the phase structure. The photoluminescence and energy transfer properties of Ce 3? -and Tb 3? -doped Ca 3 (PO 4 ) 2 host were investigated. Under the 290-nm radiation excitation, the emission spectrum of Ca 3 (PO 4 ) 2 :Ce 3? shows one broad band that peaks at 360 nm, which is attributed to the 5d-4f transition of Ce 3? . Ce 3? and Tb 3? co-doped Ca 3 (PO 4 ) 2 phosphors exhibit both blue emission from Ce 3? ions and intense green emission lines from Tb 3? at the excitation of Ce 3? . These results indicate that there exits valid energy transfer from Ce 3? to Tb 3? . The energy transfer from Ce 3? to Tb 3? in Ca 3 (PO 4 ) 2 was demonstrated to be a resonant type via electric dipole-quadrupole interaction. The critical distance of energy transfer was also calculated. Moreover, the emitting color of Ca 3 (PO 4 ) 2 :Ce 3? , Tb 3? can be tuned by appropriately adjusting the relative doping composition of Ce 3? /Tb 3? .

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Section: Introductionsupporting

confidence: 63%

Luminescence properties and energy transfer in Ca3(PO4)2:Ce3+, Tb3+ phosphors

Wang

Chen

et al. 2015

Appl. Phys. A

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“…When the distance is small enough, the concentration quenching occurs and the energy migration is hindered. Therefore, the calculation of R C has been pointed out by Blasse [45][46][47]…”

Section: Energy Transfer Mechanism Of Libab 9 O 15 :Tb 3+ Eu 3+mentioning

confidence: 99%

Structure, luminescence properties and energy transfer of Tb³⁺–Eu³⁺ codoped LiBaB₉O₁₅ phosphors

Wang

et al. 2015

Dalton Trans.

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A series of single-composition phosphors LiBaB9O15:Tb(3+),Eu(3+) have been prepared via a high-temperature solid-state reaction process. The structure and luminescence properties of phosphors are described. The LiBaB9O15:Tb(3+) phosphor shows a characteristic green emission, with the peak located at 551 nm, which corresponds to the (5)D4→(7)F5 transition of Tb(3+). The LiBaB9O15:Eu(3+) phosphor presents an obvious red emission, with the peak located at 617 nm, which is ascribed to the (5)D0→(7)F2 transition of Eu(3+). The highly intense red emission peaks of the Eu(3+) ions were attributed to an effective energy transfer from the Tb(3+) to Eu(3+) ions in LiBaB9O15:Tb(3+),Eu(3+), which has been verified through the luminescence spectra and the fluorescence decay dynamics. The results mean that LiBaB9O15:Tb(3+),Eu(3+) phosphors might have potential applications as a red emitting phosphor for white LEDs.

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“…At present, the most common hosts are aluminate and silicate systems with high stability and high QE . But their synthesis conditions are harsh, in particular the synthesis temperatures are often as high as 1300°C .…”

Section: Introductionmentioning

confidence: 99%

Luminescent properties of single‐phase Ba_{2‐x‐1.5y‐1.5z}P₂O₇:xEu²⁺,yCe³⁺, zTb³⁺ phosphors for white light‐emitting diode

et al. 2017

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Abstractpoor color rendering index and low stability of CCT. [1,4] Given that issue, it is necessary to explore single-phase white emissive phosphors for application in w-LEDs.Numerous efforts have previously been made to develop codoped single-phase white-emitting phosphors. [5,6] However, with the tri-doped phosphor it is easier to achieve tri-chromatic (RGB) emission with complete coverage when compared with co-doped phosphors. It is well known that the mixture of RGB emissions is more beneficial to generate an ideal warm white-light emission according to trichromatic theory. [7] Hence, more researchers have devoted themselves to developing the more complex tri-doped single-phase white-emitting phosphors. For example, Jiang and colleagues [8] It is a known reality that most phosphors are prepared via a conventional solid-state route, which has unavoidable disadvantages such as high synthesis temperature, nonhomogeneous mixtures and uncontrollable morphology. In particular, the obtained particles are very large with sizes in the range 1-10 μm. [9,10] In recent years, more researchers have focused on the co-precipitation method, which can overcome the above disadvantages and obtain nanophosphors with excellent luminescence properties. [9][10][11][12][13][14] Among these, Yi and colleagues [15] short, the co-precipitation method is very safe, energy-saving, timesaving option.At present, the most common hosts are aluminate and silicate systems with high stability and high QE. [16] But their synthesis conditions are harsh, in particular the synthesis temperatures are often as high as 1300°C. [17] Other materials, such as tungsten phosphate and rare earth oxides, can be easily synthesized, however they are chemically instable.[18] Barium pyrophosphate is a promising host for luminescent materials due to its low sintering temperature and stability. [18][19][20] Among the trivalent rare earth ions, Tb 3+ ion has been used frequently as the green emission center owing to its predominant 5 D 4 ! 7 F 5 transition with a peak centered at 545 nm. However, because of the forbidden transition and the weak absorption of Tb 3+ ion in the NUV region, the emission efficiency is low. [20,21] As is well known, Ce 3+ and Eu 2+ are often considered as the most important activator and effective sensitizer for Tb 3+ because of their unique electronic energy levels. [22][23][24][25] To the best of our knowledge, the crystal structures and lumines- | CharacterizationThe crystal phase of phosphor sample was analyzed by a SHIMADZU XRD-6000 diffractometer (Shimadzu Co., Japan) with Ni-filtered Cu single-phase. Ba 2 P 2 O 7 crystallized as a hexagonal structure with a space group p-62m and the lattice parameters were determined to be a = b = 9.415Å, c = 7.078Å, the crystal structure diagram of which is presented in Figure 2(a). The hexagonal form of Ba 2 P 2 O 7 signified that the sample host was at a higher temperature phase as σ-Ba 2 P 2 O 7 .Ba ions have two different types of coordination environments, in which one is coordinated b...

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Photoluminescence properties and energy transfer in color tunable BaY2Si3O10:Ce,Tb phosphors

Cited by 53 publications

References 40 publications

Luminescence properties and energy transfer in Ca3(PO4)2:Ce3+, Tb3+ phosphors

Luminescence properties and energy transfer in Ca3(PO4)2:Ce3+, Tb3+ phosphors

Structure, luminescence properties and energy transfer of Tb³⁺–Eu³⁺ codoped LiBaB₉O₁₅ phosphors

Luminescent properties of single‐phase Ba_{2‐x‐1.5y‐1.5z}P₂O₇:xEu²⁺,yCe³⁺, zTb³⁺ phosphors for white light‐emitting diode

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Photoluminescence properties and energy transfer in color tunable BaY2Si3O10:Ce,Tb phosphors

Cited by 53 publications

References 40 publications

Luminescence properties and energy transfer in Ca3(PO4)2:Ce3+, Tb3+ phosphors

Luminescence properties and energy transfer in Ca3(PO4)2:Ce3+, Tb3+ phosphors

Structure, luminescence properties and energy transfer of Tb3+–Eu3+ codoped LiBaB9O15 phosphors

Luminescent properties of single‐phase Ba2‐x‐1.5y‐1.5zP2O7:xEu2+,yCe3+, zTb3+ phosphors for white light‐emitting diode

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Structure, luminescence properties and energy transfer of Tb³⁺–Eu³⁺ codoped LiBaB₉O₁₅ phosphors

Luminescent properties of single‐phase Ba_{2‐x‐1.5y‐1.5z}P₂O₇:xEu²⁺,yCe³⁺, zTb³⁺ phosphors for white light‐emitting diode