LUMINESCENCE
·
2024
·Vol. 39
·期 4
·e4737
·
IF 3.2
Haoquan Li,Haoyi Wu,Lei Zhang,Shuyu Qin,Jianjun Song,Yahong Jin,Yihua Hu
The predominant method for pest control has been the use of pesticides, which have been shown to have detrimental effects on soil, freshwater, and crop quality. Therefore, the development of novel and sustainable crop protection strategies has become increasingly imperative. In this study, a novel orange–red emitting Ba 2 SrWO 6 : Sm 3+ phosphor was synthesized using the high-temperature solid-state reaction. Under ultraviolet excitation, the phosphors showed obvious emission peaks at 575, 614, and 662 nm. The Ba 2 SrWO 6 : Sm 3+ was used to fabricate a fluorescence film with polydimethylsiloxane (PDMS), and attracted twice as many insects as the blank control group under 365 nm ultraviolet light. This material holds great potential as a fluorescent agent for insect trapping in the pest control fields of tea, cotton, eggplant, rice, potato, grape, and other agricultural industries. Our findings provide an eco-friendly approach to pest management for the increment of food production.
研究领域:
农业科学
·
材料科学
·
生态学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 51
·期 12
·4685-4694
·
IF 4.569
Guixian Li,Yu Xue,Qinan Mao,Lang Pei,Hong He,Meijiao Liu,Liang Chu,Jiasong Zhong
Luminescent thermometers provide a non-contact method of probing temperature with high sensitivity and response speed at the nanoscale. Synergistic photoluminescence from different activators can realize high sensitivity for luminescent thermometers by finely selecting ions with specific crystallographic sites. Herein, the more temperature-sensitive Mn4+ and the less-sensitive Eu3+ (or Sm3+) activators are co-doped into a Ca2GdSbO6 matrix to form an effective thermometer, where Mn4+ and Eu3+ (or Sm3+) ions occupy the Sb5+ and Gd3+ sites, respectively. The co-doping of Eu3+ ions or Sm3+ ions leads to lattice expansion of Ca2GdSbO6 matrix and a tuned narrow emission from deep-red to orangish-red. According to the ratio of luminescence intensity, the maximal Sa and Sr values are 0.19 K−0 (347 K) and 1.38% K−( (420 K) for Ca2GdSbO6:Mn4+/Eu3+ probe and 0.26 K−p (363 K) and 1.55% K−( (430 K) for Ca2GdSbO6:Mn4+/Sm3+ probe thermometers, respectively. In addition, thermometers based on Mn4+ emission lifetimes can provide the highest relative sensitivity of 1.47% K−s at 425 K. Thus, the highly-temperature-sensitive Ca2GdSbO6:Mn4+/(Eu3+ or Sm3+) phosphor is a promising candidate for practical luminescence thermometers.
研究领域:
材料科学
·
无机化学
·
光学材料
·
纳米技术
·
生物传感
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Na-Na Zhang,Yu-Guo Yang,Xue-Yuan Yan,Meng-Qi Wang,Yuan-Yuan Zhang,Hua-Di Zhang,Rui Zhang,Cheng-Cheng Qiu,Fu-Di Chen,Ji-Yang Wang
In the present work, orange-red Sm 3+ doped La 3 Ga 5 SiO 14 phosphors were successfully formed through high temperature solid state method at 1350 °C. The phase purity, size distribution, vibrations, absorption and series of luminescence characteristics were studied, respectively. The X-ray diffraction and Rietveld refinements results show the single phase and crystal lattice information. The results of scanning electron microscope and energy-dispersive spectroscopy demonstrate the basic particle shape and verify the constituent elements for the prepared samples. The infrared spectra clarify the phonon vibration properties of the La 3 Ga 5 SiO 14 :Sm 3+ phosphors. The UV–visible absorption spectra indicate that the absorption properties and the corresponding band gaps. The luminescence results show that the La 3 Ga 5 SiO 14 :Sm 3+ phosphors emit intense orange-red emission peaking at 600 nm as excited at 401 nm. The optimum doping concentration of Sm 3+ ion is x = 0.05 and the mechanism of concentration quenching is from dipole-quadrupole interaction. In addition, the prepared phosphors have good thermostability, and its thermal activation energy is 0.2161 ev. Finally, red and white light emitting diodes were successfully manufactured with 395 nm chip. All experimental results show that the La 3 Ga 5 SiO 14 :Sm 3+ phosphors have good application prospect in light emitting diodes .
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Xiuna Tian,Hongjian Dou,Lingyuan Wu
Based on the luminescence of Bi 3+ , novel temperature sensing materials YNbO 4 :Bi 3+ and YNbO 4 :Bi 3+ /Sm 3+ were successfully synthesized by solid state reaction. The XRD patterns show that the synthesized materials have a pure phase of YNbO 4 . With the excitation of 314 nm, the YNbO 4 :Bi 3+ material shows intense temperature-dependent luminescence in the range of 303 K–463 K. Based on the temperature-dependent luminescence of Bi 3+ in YNbO 4 , the maximum relative sensitivity can be obtained at 434 K (1.72% K −1 ). Under the excitation of 406 nm, the YNbO 4 :Sm 3+ material shows the characteristic emission peaks of Sm 3+ . In YNbO 4 :Bi 3+ /Sm 3+ phosphor, the large overlap between the emission spectra of Bi 3+ and the excitation spectra of Sm 3+ leads to a significant energy transfer from Bi 3+ to Sm 3+ . With the excitation of 314 nm, the emission spectra of YNbO 4 :Bi 3+ /Sm 3+ material shows the characteristic peaks of Bi 3+ and Sm 3+ . The luminescence intensity ratio of Sm 3+ and Bi 3+ shows a strong temperature dependence. Based on the luminescence intensity ratio, a large relative sensitivity is obtained at 455 K (1.57% K −1 ).
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2021
·
IF 3.599
Renping Cao,Zhuyang Jiang,Ting Chen,Huang Liang,Xuehua Yi,Yuancong Zhong,Haining Zhang,Wei Luo
In this work, we synthesize successfully Na 4 CaSi 3 O 9 :R (R = Ce 3+ , Sm 3+ , and Ce 3+ /Sm 3+ ) phosphors in the reducing atmosphere (95% N 2 + 5% H 2 ) by using the high-temperature solid-state method. The crystal structure and luminescence properties of samples are investigated. The excitation spectrum of Na 4 CaSi 3 O 9 :Ce 3+ phosphor is observed in the range of 220–400 nm due to the 4 f → 5 d transitions of Ce 3+ ion. The emission spectrum contered at ∼425 nm of Na 4 CaSi 3 O 9 :Ce 3+ phosphor is in the range of 360–650 nm owing to the 5 d → 2 F 5/2 and 2 F 7/2 transitions of Ce 3+ ion. Na 4 CaSi 3 O 9 :Sm 3+ phosphor can show the excitation spectrum in the range of 200–550 nm owing to the O 2− - Sm 3+ charge transfer band and the f - f transitions of Sm 3+ ion, and its emission spectrum covers the region from 575 nm to 750 nm with four emission bands because of the 4 G 5/2 → 6 H 5/2 , 6 H 7/2 , 6 H 9/2 , and 6 H 11/2 transitions of Sm 3+ ion. The tunable emission, luminescence improvement, temperature-dependent emission, and lifetime in Na 4 Ca 0.96-x Si 3 O 9 :4 mol%Ce 3+ , xSm 3+ phosphors are investigated. The luminous mechanism of Na 4 CaSi 3 O 9 :Ce 3+ , Sm 3+ phosphors is explained by using the energy level diagrams of Ce 3+ and Sm 3+ ions. The experimental results are beneficial to research new Ce 3+ and Sm 3+ co-doped phosphors.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2019
·Vol. 30
·期 11
·10491-10498
·
IF 2.195
Li Zhenzhang,zhong Biliang,Cao Yujun,Zhang Shaoan,Lv Yang,Mu Zhongfei,Hu Zhengfa,Hu Yihua
Highly thermo-stable and tunable-luminescence phosphors Y 3 Al 2 Ga 3 O 12 : Tb 3+ , Sm 3+ are synthesized by conventional solid-state reaction method. In this study, the multicolor emission, thermal stability and energy transfer mechanism in Y 3 Al 2 Ga 3 O 12 : Tb 3+ , Sm 3+ are evaluated in detail. The emission color can be tuned from green to yellow by adjusting the Tb 3+ /Sm 3+ ratio. The energy transfer efficiency from Tb 3+ to Sm 3+ reaches as high level as 62.5%. Energy transfer mechanism of Tb 3+ -Sm 3+ are related to the dipole–dipole interaction. Furthermore, Y 3 Al 2 Ga 3 O 12 : Tb 3+ , Sm 3+ phosphor shows a good thermal stability, the integrated intensity (150 °C) of YAGO: 0.5 Tb 3+ , 0.1Sm 3+ still keeps more than half of that at room temperature. Therefore, the multicolor tunable phosphor Y 3 Al 2 Ga 3 O 12 : Tb 3+ , Sm 3+ presents a potential for application in the white LEDs.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
OPTIK
·
2017
·
IF 0.835
Renping Cao,Kailei Bai,Xing Liu,Wudi Wang,Ting Chen,Siling Guo,Zhiyang Luo,Wensheng Li
A series of CaZn 2 P 2 O 8 :Sm 3+ , Mn 2+ phosphors are synthesized by a solid-state reaction method in air. The crystal structures and luminescence properties are investigated. CaZn 2 P 2 O 8 :Sm 3+ phosphor with excitation 402 nm emits red light in the range of 550–750 nm owing to the 4 G 5/2 → ( 6 H 5/2 , 6 H 7/2 , 6 H 9/2 , and 6 H 11/2 ) transitions of Sm 3+ ion. CaZn 2 P 2 O 8 :Mn 2+ phosphor with excitation 400 nm emits yellow-green light in the range of 500–650 nm due to the 4 T 1 (G) → 6 A 1 transition of the Mn 2+ ion. CaZn 2 P 2 O 8 :Sm 3+ , Mn 2+ phosphor with excitation 400 nm shows a tunable emission in the range of 500–750 nm with changing Sm 3+ or Mn 2+ ion content. The optimal Sm 3+ and Mn 2+ ion concentrations are ∼4 mol% and 3 mol%, respectively.
研究领域:
材料科学
·
光学
·
磷光技术
✓ 已验证
产品关联
DOI
高影响因子
OPTIK
·
2019
·
IF 1.914
Jianjun Duan,Shixue Sun,Yanjie Zhang,Jingjie Yu,Nianyu Zou,Ailing Zou
A series of Dy 3+ /Sm 3+ co-doped KZnPO 4 phosphors were synthesized by the conventional solid-state reaction method. The crystal structure, luminescent characteristic and lifetime were studied by X-ray diffraction, photoluminescence properties and decay life. Dy 3+ /Sm 3+ co-doped and Sm 3+ doped KZnPO 4 phosphors exhibited high crystallinity in structure from XRD results. Under the ultraviolet (UV) or near-ultraviolet (NUV) excitation, KZnPO 4 : Dy 3+ , Sm 3+ phosphors emitted adjustable color coordinates light by changing the content of Sm 3+ ions, which indicated the phosphors might be of potential application in display and lighting. The optimum Sm 3+ concentration is 0.005. Furthermore, energy transfer from Dy 3+ to Sm 3+ was confirmed by the emission spectra and the decay time of co-doped phosphors.
研究领域:
材料科学
·
光电材料
·
荧光粉材料
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2023
·
IF 3.9
Da Cai,Zhiyuan Cheng,Tong Liu,Jinyuan Zhang,Fuhua Gao,Tian Shi,Shenghong Yang,Yueli zhang
Sm 3+ is one of the most fascinating activators because of its dominate emissions in visible region with abundant potential applications. However, its absorbing cross section and ability to be sensitized are ineffective and unpractical due to the low quenching concentration. In this work, a series of β-NaYF 4 : Ce 3+ /Gd 3+ /Sm 3+ were synthesized. Pure hexagonal phase of all samples was guaranteed by powder XRD patterns and SEM images, despite the morphology was influenced by rare earth components. The luminescence properties of β-NaYF 4 : Ce 3+ /Gd 3+ /Sm 3+ were systemically investigated by the photoluminescence excitation spectra, emission spectra and life time decay curves. Tri-doping Gd 3+ into β-NaYF 4 was found to be very helpful to enhance the sensitization of Ce 3+ on Sm 3+ . Furthermore, the rate equation of sensitizers was induced to analyze details of competition between ET Ce → Gd and Ce → Sm. Rate equation analysis also indicated that the enhancing effect of Gd 3+ on sensitization is mainly due to the greatly improved energy utilization efficiency.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Electronic Materials
·
2022
·
IF 4.494
Xinyu He,Tao Wang,Xudong Li,Sujit Das,Xingjun Liu,Zuhuang Chen
Piezoelectric ceramics with combined high piezoelectric performance and excellent thermal stability are important and urgently needed for actuation and sensor applications in harsh environments, such as aerospace, automotive, oil, and gas exploration industries. However, the development of such piezoceramics is still a highly challenging task because an enhanced piezoelectric response is generally accompanied by a decrease in thermal stability. Here, we report that 0.55Bi1–xSmxFeO3–0.45PbTiO3 piezoceramics exhibit a balanced trade-off between piezoelectric response and thermal stability near the morphotropic phase boundary (MPB), where piezoelectric coefficient d33 (275 pC N–1) barely changes even at a temperature as high as 320 °C and the well-squared shape P–E hysteresis loop persists even at a high temperature of 220 °C. Compared with La3+, Sm3+ has a smaller ionic radius than Bi3+ or Pb2+ and thus could be more effectively to induce MPB at a relatively low substitution level (x = 0.16–0.21). In turn, the thermal stability of the piezoceramics does not degrade significantly. Our results further demonstrate that Sm substitution induces a strong relaxor behavior in the ceramics. These results suggest that the Sm3+-doped BiFeO3-PbTiO3 ceramics hold great promise for high temperature piezoelectric applications.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Jiamei Song,Xinyu Zhang,Ninglei Huang,Hongjian Dou,Bo Chen,Xiuna Tian,Changjun Wang,Lingyuan Wu
A zincate material, BaLa 2 ZnO 5 was successfully synthesized by a high-temperature solid-state method as a host for Bi 3+ . All the peaks in the X-ray diffraction patterns of the obtained material could be attributed to single phase BaLa 2 ZnO 5 . The BaLa 2 ZnO 5 host exhibited strong band-to-band absorption in the range of 200–290 nm. After the doping of Bi 3+ , the absorption band due to band-to-band transition decreased, and three new absorption bands appeared. Upon monitoring the luminescence of Bi 3+ at 407 nm, three excitation peaks were observed for BaLa 2 ZnO 5 : Bi 3+ , which could be attributed to A, C and metal-to-metal charge-transfer states by analyzing its excitation and absorption spectra . When codoped with Bi 3+ and Sm 3+ , BaLa 2 ZnO 5 : Bi 3+ /Sm 3+ exhibited strong energy transfer process from Bi 3+ to Sm 3+ . Variable-temperature emission spectra revealed that the luminescence intensity of Bi 3+ decreases rapidly with the increase in temperature, while that of Sm 3+ ions decreases slowly. The relative sensitivity ( S R ) values of the BaLa 2 ZnO 5 : Bi 3+ and BaLa 2 ZnO 5 : Bi 3+ /Sm 3+ phosphors to temperature (1.77 and 1.12% K −1 , respectively) were high and extremely stable in the range of 293–423 K. Therefore, the Bi 3+ -doped BaLa 2 ZnO 5 phosphor has great application potential for biological temperature sensing.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2020
·
IF 5.289
Yong Yang,Heng Pan,Li Guan,Dawei Wang,Jinxin Zhao,Jingfa Yang,Zhiping Yang,Xu Li
A series of Sm 3+ ions doped Sr 3 Al 2 O 6 phosphors was successfully synthesized via hydrothermal method. The crystal structure, morphology and luminescent properties of samples were analyzed by X-ray diffraction, scanning electron microscopy and photoluminescence spectra. All the samples took on cubic structure with Pa-3 space group. The Sr 3 Al 2 O 6 :Sm 3+ phosphors could be excited by 405 nm and emit orange-red light peaked at 565, 609 and 660 nm. The effect of hydrothermal reaction time on the morphology and luminescent properties of phosphor was investigated. The influence of molar fraction of Sm 3+ ions on the emission intensity of samples was studied and it has been found that the optimal dosage is 0.01. The calculated results by the first principle indicated that the Sm 3+ ions will easily occupy the symmetric center site (Sr1). The results indicated that the luminescent intensity of Sr 3 Al 2 O 6 :Sm 3+ phosphors could be modulated by reaction conditions of hydrothermal method.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）