Tunable Yellow-Red Emission via Energy Transfer in Dy3+, Mn4+: NaLaMgWO6 Phosphors for UV-Excited LED

Abstract The Dy3+, Mn4+: NaLaMgWO6 phosphors are synthesized successfully using the technique of solid-state reaction at 1150 ℃. The XRD and SEM-EDS are measured to analyze the phase purity. The concentrations of Dy3+, Mn4+, Mg2+, Na+, La3+ and W6+ are measured by ICP. The absorption and excited spectra are presented, which indicate the 390 nm is suitable for the tunable yellow-red light excitation. Using the 390 nm LED as the excitation source, the emission spectra with different doped concentrations ratios of Dy3+to Mn4+ are obtained, which shows good tunable yellow-red emission performance.

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Luminescence Properties and Energy Transfer from Eu2+ to Tb3+ in Sr5(PO4)3F Phosphor

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.683.199 ◽

2013 ◽

Vol 683 ◽

pp. 199-202 ◽

Cited By ~ 1

Author(s):

Jia Yue Sun ◽

Dian Peng Cui ◽

Bing Xue ◽

Guang Chao Sun ◽

Hai Yan Du

Keyword(s):

Energy Transfer ◽

High Temperature ◽

Solid State ◽

Solid State Reaction ◽

Single Phase ◽

Emission Spectra ◽

Effective Energy ◽

Photoluminescence Excitation ◽

Excitation Band ◽

Effective Energy Transfer

A series of single-phase Sr5(PO4)3F: Eu2+, Tb3+, Na+ phosphors have been synthesized by high temperature solid-state reaction. The photoluminescence excitation and emission spectra, concentration effect and energy transfer from Eu2+ to Tb3+ are investigated in detail. The work shows that there is an effective energy transfer from Eu2+ to Tb3+, where Eu2+ reveals an intense excitation band from 280 nm to 400 nm, matching well with the emission of n-UV chips, and Tb3+ emits an intense green emitting light.

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Synthesis and Luminescence Properties of Na3YSi2O7:Sm3+, Eu3+ Phosphor

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.633-634.306 ◽

2014 ◽

Vol 633-634 ◽

pp. 306-309 ◽

Cited By ~ 1

Author(s):

Jia Yue Sun ◽

Liu Han ◽

Qiu Mei Di ◽

Qi Guang Xu

Keyword(s):

Energy Transfer ◽

High Temperature ◽

Solid State ◽

White Light ◽

Solid State Reaction ◽

Emission Spectra ◽

Potential Candidate ◽

Photoluminescence Excitation ◽

Light Emitting ◽

White Light Emitting Diodes

Novel Na3YSi2O7: Sm3+, Eu3+phosphors for white light-emitting diodes were prepared by high-temperature solid-state reaction. The photoluminescence excitation and emission spectra, energy transfer from Eu2+to Tb3+are investigated in detail. The current research suggests that Na3YSi2O7: Sm3+, Eu3+phosphor is a potential candidate for application in Phosphor-converted LEDs.

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Synthesis and luminescence of Li2.06Nb0.18Ti0.76O3: Eu3+ Ceramics

Functional Materials Letters ◽

10.1142/s1793604720510303 ◽

2020 ◽

Vol 13 (05) ◽

pp. 2051030

Author(s):

Xi Chen ◽

Qun Zeng ◽

Liu Lei ◽

Chun-Feng Yao ◽

Chao-Chao Guo ◽

...

Keyword(s):

Solid State ◽

Solid State Reaction ◽

Fluorescence Spectra ◽

Sintering Temperature ◽

Emission Spectra ◽

Solid State Reaction Method ◽

Red Emission ◽

Reaction Method ◽

Pl Spectra ◽

Orange Emission

Li[Formula: see text]Nb[Formula: see text]Ti[Formula: see text]O3: Eu[Formula: see text] luminescent ceramics were prepared by the solid-state reaction method. By means of XRD, SEM, density testing, and fluorescence spectra data, the luminescent ceramics were characterized as functions of Eu[Formula: see text] concentration and sintering temperature. With the increase of sintering temperature and Eu[Formula: see text] concentration, the peak intensities of the PLE spectra monitored at 612[Formula: see text]nm and PL spectra excited at 396[Formula: see text]nm were dramatically improved. Li[Formula: see text]Nb[Formula: see text]Ti[Formula: see text]O3: 3[Formula: see text]wt.%Eu[Formula: see text] ceramics sintered at 1120∘C showed the highest PL intensity. The emission spectra showed orange emission at 592[Formula: see text]nm and red emission at 612[Formula: see text]nm, corresponding to the transition of 5D[Formula: see text]F1 and 5D[Formula: see text]F2 of Li[Formula: see text]Nb[Formula: see text]Ti[Formula: see text]O3: Eu[Formula: see text] ceramics.

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Photoluminescence and Energy Transfer from Sm3+ to Eu3+ in Na3YSi2O7 Phosphor for Light-Emitting Diodes

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.597.117 ◽

2014 ◽

Vol 597 ◽

pp. 117-120 ◽

Cited By ~ 1

Author(s):

Jia Yue Sun ◽

Dian Peng Cui ◽

Qiu Mei Di ◽

Qi Guang Xu ◽

Liu Han

Keyword(s):

Energy Transfer ◽

Uv Light ◽

Red Light ◽

Emission Spectra ◽

X Ray Diffraction ◽

Solid State Reaction Technique ◽

Light Emitting ◽

X Ray ◽

Effective Energy Transfer ◽

Light Excitation

A series of Na3YSi2O7: Eu3+, Sm3+ samples have been synthesized via solid-state reaction technique. The phase structure and luminescence properties are characterized using powder X-ray diffraction, photoluminescence excitation and emission spectra. Effective energy transfer occurs from Sm3+ to Eu3+ and Sm3+/Eu3+-codoped Na3YSi2O7 shows more intense red light compared to that of Eu3+-doped sample under UV light excitation.

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Highly efficient red emission and multiple energy transfer properties of Dy3+/Mn4+co-doped Ca14Zn6Ga10O35phosphors

RSC Advances ◽

10.1039/c7ra02112g ◽

2017 ◽

Vol 7 (28) ◽

pp. 17244-17253 ◽

Cited By ~ 16

Author(s):

Yiyang Zhou ◽

Weiren Zhao ◽

Junhua Chen ◽

Zifeng Liao

Keyword(s):

Energy Transfer ◽

Solid State ◽

Solid State Reaction ◽

Solid State Reaction Technique ◽

Red Emission ◽

Highly Efficient ◽

Transfer Properties ◽

Co Doped

Novel Dy3+/Mn4+co-doped Ca14Zn6Ga10O35phosphors have been synthesized by a solid state reaction technique.

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Enhancement of the red emission in Ba3(PO4)2:Eu3+ by addition of charge compensator Na+

Modern Physics Letters B ◽

10.1142/s0217984918400638 ◽

2018 ◽

Vol 32 (34n36) ◽

pp. 1840063 ◽

Cited By ~ 1

Author(s):

Dandan Zhang ◽

Huaxing Xiao ◽

Wei Jiang ◽

Xia Cao ◽

Lu Huang ◽

...

Keyword(s):

Crystal Structure ◽

Solid State ◽

Red Light ◽

Emission Spectra ◽

Luminescent Properties ◽

Host Crystal ◽

Red Emission ◽

Uv Led ◽

Charge Compensator ◽

Red Emitting Phosphor

Ba[Formula: see text](PO4)2:0.04Eu[Formula: see text] (S1) and Ba[Formula: see text]Na[Formula: see text](PO4)2:0.04Eu[Formula: see text] (S2) were prepared by solid state reaction. The phases and luminescent properties of the obtained phosphors were characterized. The results demonstrate that the phosphors particles emit an intensive red light under excitation at 395 nm. Both phosphors can be efficiently excited by ultraviolet and blue light, and the emission spectra mainly consist of two emission peaks at 591 nm and 611 nm. The crystallographic sites of Eu[Formula: see text] ions in Ba3(PO4)2 host were discussed on the base of emission spectra and its host crystal structure. By introducing the charge compensator Na[Formula: see text] into the S1 phosphor, its emission intensity was enhanced, indicating that S2 could serve as a promising red-emitting phosphor for UV LED applications.

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Structure and photoluminescence properties of novel Sr6Ca4(PO4)6F2:Re (Re = Eu2+, Mn2+) phosphors with energy transfer for white-emitting LEDs

RSC Advances ◽

10.1039/c7ra06817d ◽

2017 ◽

Vol 7 (65) ◽

pp. 41282-41288 ◽

Cited By ~ 7

Author(s):

Hongwei Xu ◽

Lili Wang ◽

Dan Qu ◽

Zhiyun Si ◽

Jinsheng Shi

Keyword(s):

Energy Transfer ◽

Solid State ◽

White Light ◽

Solid State Reaction ◽

Photoluminescence Properties ◽

Light Emitting

A series of Sr6Ca4(PO4)6F2:Eu2+,Mn2+ phosphors were synthesized by traditional solid state reaction. Through controlling the ratio of Eu2+ and Mn2+, emission colors can be tuned from blue to yellow, including white-light-emitting.

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Synthesis, photoluminescence and Judd–Ofelt analysis of red LiGd5P2O13 : Eu3+ phosphors for white LEDs

RSC Advances ◽

10.1039/c5ra06680h ◽

2015 ◽

Vol 5 (67) ◽

pp. 54622-54628 ◽

Cited By ~ 48

Author(s):

Xinguo Zhang ◽

Liya Zhou ◽

Qi Pang ◽

Menglian Gong

Keyword(s):

Thermal Stability ◽

Solid State ◽

Quantum Yield ◽

Solid State Reaction ◽

Red Light ◽

Solid State Reaction Method ◽

Reaction Method ◽

White Leds ◽

Good Thermal Stability ◽

Red Phosphors

LiGd5P2O13 : Eu3+ red phosphors were prepared by solid-state reaction method. Phosphors could be efficiently excited by NUV/blue light and emit pure-red light. LiGd5P2O13 : Eu3+ shows good thermal stability with quantum yield of 46.5%.

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Photo and Electroluminescent Properties of a Porphyrin-Poly(p-Phenylene Vinylene) Derivative

MRS Proceedings ◽

10.1557/proc-598-bb3.57 ◽

1999 ◽

Vol 598 ◽

Author(s):

J. Morgado ◽

R. Iqbal ◽

G. Yahioglu ◽

L. R. Milgrom ◽

S. C. Moratti ◽

...

Keyword(s):

Energy Transfer ◽

Solid State ◽

Emission Spectra ◽

Luminescent Properties ◽

Phenylene Vinylene ◽

Efficient Energy Transfer ◽

Light Emitting ◽

Efficient Energy ◽

Small Absorption ◽

Pl Emission

ABSTRACTThe solid state luminescent properties of new statistical copolymers of 2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylene vinylene and a porphyrin-substituted phenylene vinylene are reported. The photoluminescence, PL, emission shows an efficient energy transfer to the porphyrin, in spite of the small absorption coefficient of the porphyrin in the wavelength range of the poly [2-methoxy-5-(2'- ethylhexyloxy)-1,4-phenylene vinylene], MEH-PPV, emission. At a porphyrin content of 0.25%, by weight, the emission is already dominated by the porphyrin. The PL efficiency of these copolymers is significantly reduced from the value of 13% for MEH-PPV down to 3% for the copolymer with 10.84% of porphyrin. Efficient energy transfer is also observed in the emission spectra of light-emitting diodes.

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