Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDs
In this study, a series of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> red phosphors were successfully prepared with a high-temperature solid-phase technology. The Rietveld refinement analysis of the X-ray diffraction (XRD) diffracti...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/29/23/5495 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850260186959183872 |
|---|---|
| author | Anlin Zhang Yue Yang Yuqing Peng Hao Zhou Wei Tang Jianhong Jiang Yiting Wu Shiying Cai Lianwu Xie Bin Deng |
| author_facet | Anlin Zhang Yue Yang Yuqing Peng Hao Zhou Wei Tang Jianhong Jiang Yiting Wu Shiying Cai Lianwu Xie Bin Deng |
| author_sort | Anlin Zhang |
| collection | DOAJ |
| description | In this study, a series of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> red phosphors were successfully prepared with a high-temperature solid-phase technology. The Rietveld refinement analysis of the X-ray diffraction (XRD) diffraction patterns indicated that the as-prepared phosphors belong to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>R</mi><mover accent="true"><mn>3</mn><mo>¯</mo></mover></mrow></semantics></math></inline-formula> space group of the hexagonal crystal system. Under 404 nm near-ultraviolet excitation, the Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> phosphor exhibits narrowband emission within the range of 550 to 750 nm. The primary emission peak is observed at a wavelength of 599 nm, corresponding to <sup>6</sup>H<sub>5/2</sub> → <sup>4</sup>F<sub>7/2</sub>. The optimum doping concentration of the Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:<i>x</i>Sm<sup>3+</sup> phosphor is 10 mol%. Nearest-neighbor ion interaction is the mechanism of concentration quenching. The synthesized phosphors demonstrate exceptional thermal stability, with a high quenching temperature (<i>T</i><sub>0.5</sub> > 480 K). Furthermore, the assembled white light-emitting diode (w-LED) device exhibits a low color temperature (5464 K), an excellent color rendering index (<i>R</i><sub>a</sub> = 95.6), and CIE coordinates (0.333, 0.336) close to those of standard white light. Collectively, these results suggest the enormous potential of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> phosphors for applications in w-LEDs. |
| format | Article |
| id | doaj-art-9f87c646b7af4e92a5f8181bfbe8f67d |
| institution | OA Journals |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-9f87c646b7af4e92a5f8181bfbe8f67d2025-08-20T01:55:41ZengMDPI AGMolecules1420-30492024-11-012923549510.3390/molecules29235495Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDsAnlin Zhang0Yue Yang1Yuqing Peng2Hao Zhou3Wei Tang4Jianhong Jiang5Yiting Wu6Shiying Cai7Lianwu Xie8Bin Deng9College of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaCollege of Chemistry & Pharmacy, Northwest A & F University, Yangling 712100, ChinaCollege of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaCollege of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaSchool of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423043, ChinaSchool of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423043, ChinaSchool of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423043, ChinaSchool of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423043, ChinaCollege of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, ChinaSchool of Chemistry and Environmental Science, Xiangnan University, Chenzhou 423043, ChinaIn this study, a series of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> red phosphors were successfully prepared with a high-temperature solid-phase technology. The Rietveld refinement analysis of the X-ray diffraction (XRD) diffraction patterns indicated that the as-prepared phosphors belong to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>R</mi><mover accent="true"><mn>3</mn><mo>¯</mo></mover></mrow></semantics></math></inline-formula> space group of the hexagonal crystal system. Under 404 nm near-ultraviolet excitation, the Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> phosphor exhibits narrowband emission within the range of 550 to 750 nm. The primary emission peak is observed at a wavelength of 599 nm, corresponding to <sup>6</sup>H<sub>5/2</sub> → <sup>4</sup>F<sub>7/2</sub>. The optimum doping concentration of the Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:<i>x</i>Sm<sup>3+</sup> phosphor is 10 mol%. Nearest-neighbor ion interaction is the mechanism of concentration quenching. The synthesized phosphors demonstrate exceptional thermal stability, with a high quenching temperature (<i>T</i><sub>0.5</sub> > 480 K). Furthermore, the assembled white light-emitting diode (w-LED) device exhibits a low color temperature (5464 K), an excellent color rendering index (<i>R</i><sub>a</sub> = 95.6), and CIE coordinates (0.333, 0.336) close to those of standard white light. Collectively, these results suggest the enormous potential of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> phosphors for applications in w-LEDs.https://www.mdpi.com/1420-3049/29/23/5495borateSr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>Sm<sup>3+</sup>luminescenceLEDs |
| spellingShingle | Anlin Zhang Yue Yang Yuqing Peng Hao Zhou Wei Tang Jianhong Jiang Yiting Wu Shiying Cai Lianwu Xie Bin Deng Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDs Molecules borate Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub> Sm<sup>3+</sup> luminescence LEDs |
| title | Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDs |
| title_full | Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDs |
| title_fullStr | Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDs |
| title_full_unstemmed | Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDs |
| title_short | Synthesis of Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub>:Sm<sup>3+</sup> Red Phosphor with Excellent Thermal Stability and Its Application in w-LEDs |
| title_sort | synthesis of sr sub 6 sub lual bo sub 3 sub sub 6 sub sm sup 3 sup red phosphor with excellent thermal stability and its application in w leds |
| topic | borate Sr<sub>6</sub>LuAl(BO<sub>3</sub>)<sub>6</sub> Sm<sup>3+</sup> luminescence LEDs |
| url | https://www.mdpi.com/1420-3049/29/23/5495 |
| work_keys_str_mv | AT anlinzhang synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT yueyang synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT yuqingpeng synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT haozhou synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT weitang synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT jianhongjiang synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT yitingwu synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT shiyingcai synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT lianwuxie synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds AT bindeng synthesisofsrsub6sublualbosub3subsub6subsmsup3supredphosphorwithexcellentthermalstabilityanditsapplicationinwleds |