Article
Materials Science, Ceramics
Xiaolei Zhu, Xiaoping Wang, Xianke Sun
Summary: The luminescent characteristics of Bi3+/Tb3+/Mn2+-activated SrZnSO phosphors were investigated. The phosphors showed blue, orange, and green emissions when excited by NUV/blue light. Energy transfer processes among the activators result in tunable luminescence. The emission points of the phosphors were calculated, reflecting changes in emission color.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yuchun Ren, Honghui Zhang, Yuanyuan Chen, Nana Li, Yuguo Yang
Summary: Bi3+/Tb3+/Mn2+-doped Sr3Y2Ge3O12 phosphors were synthesized and their luminescence performance was investigated. The results showed that the phosphors emitted cyan, green, and red light under UV/NUV excitation. Energy transfer processes occurred in the phosphors, leading to tunable luminescence. The emission colors could be adjusted by changing the concentrations of Tb3+ and Mn2+ ions.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xiaoqi Zhao, Yami Ling, Yuanzhao Gou
Summary: Particle size plays a crucial role in up-conversion luminescence tuning and application research. In this study, CeO2:Yb3+/Er3+ nanospheres were synthesized via coprecipitation, and their up-conversion emissions were investigated. The results showed that the nanosphere size decreased as the Yb3+ doping concentration increased, leading to an increase in the red-green emission intensity ratio. This phenomenon might be attributed to the strengthened nonradiative relaxation process and the enhanced energy back-transfer process.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Xiaoli Li, Yonglei Feng, Liwei Wang, Xianke Sun
Summary: This study investigates the potential application of Bi3+/Mn2+ doped Ba9La2Si6O24 phosphors in light-emitting diodes. The synthesized phosphors exhibit a single phase and absorption to ultraviolet light. The energy transfer between Bi3+ and Mn2+ ions allows for tunable luminescence. The Ba9La2Si6O24:0.03Bi(3+)/0.02Mn(2+) and Ba9La2Si6O24:0.03Bi(3+)/0.03Mn(2+) phosphors can generate white light under ultraviolet light excitation.
Article
Chemistry, Physical
Nailya S. Akhmadullina, Aleksey Ishchenko, Anton S. Lysenkov, Oleg N. Shishilov, Yury F. Kargin
Summary: The Eu2+/Ce3+, Ce3+/Tb3+, and Eu2+/Tb3+ co-doped aluminum oxynitrides Al5O6N prepared by the sol-gel technique showed non-radiative energy transfer among the rare-earth ions. Optimal contents of the REE ions differed in the co-doped samples compared to singly doped ones.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hongliang Li, Yi Zhang, Rui Huang, Zhenxu Lin, Jie Song, Wenxing Zhang, Chao Song, Zewen Lin, Qing Yang, Jing Yao, Shan Zhang, Yanqing Guo
Summary: The study revealed that with increasing Ba2+ concentrations, Mn2+ tended to preferentially occupy the decahedral sites, and SrGa2Si2O8:Mn2+ exhibited bright persistent luminescence at room temperature due to a wide trap distribution.
OPTICAL MATERIALS EXPRESS
(2021)
Article
Chemistry, Inorganic & Nuclear
Jiaoying Wang, Minghui Tai, Zhikui Yu, Shuo Kang, Dailai Jin, Longcheng Wang
Summary: A novel single-phase luminescent material, Ln@bio-MOF-1, was synthesized using a facile hydrothermal method. The structure and luminescence characteristics of the material were studied in detail. By controlling the molar amounts of Tb3+ and Eu3+, the chromaticity of the samples could be easily modulated. The synthesized material showed potential for use in WLED applications, with high quantum yield, white emission, and desirable color rendering index and correlated color temperature.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ze Wang, Benfu Qian, Fangke Wang, Qianran Zhao, Yulu Wang, Haifeng Zou, Yanhua Song, Xiuqing Zhou, Ye Sheng
Summary: Uniform and well-dispersed SiO2:x%Tb3+@Lu2O3:y%Eu3+ core-shell spherical phosphors were successfully synthesized, demonstrating that multicolor luminescence could be achieved by changing the doping ratio of Eu3+ or excitation wavelengths. Coating the Lu2O3:Eu3+ layer uniformly on the surface of SiO2:Tb3+ spheres resulted in stronger luminescence intensity, longer fluorescence lifetime, and higher energy transfer efficiency. These results provide a new approach for enhancing luminescence and achieving multicolor luminescence.
INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Fengfeng Chi, Liangliang Pan, Bin Jiang, Zhangchao Ji, Jie Cheng, Bing Wang, Xiantao Wei, Shengli Liu
Summary: Tb3+ and Eu3+ doped La4GeO8 phosphors with multicolor emission were synthesized and their photoluminescence properties were investigated. The energy transfer from Tb3+ to Eu3+ in La4GeO8 is attributed to quadrupole-quadrupole interaction. The La4GeO8:0.07Tb3+,0.01Eu3+ phosphor exhibits good thermal stability with activation energies of 0.186 eV and 0.187 eV for Tb3+ and Eu3+ ions, respectively. By adjusting the content ratio of Eu3+ to Tb3+, the La4GeO8:Tb3+,Eu3+ phosphors can achieve multicolor luminescence and tunable chromaticity. These findings suggest that La4GeO8:Tb3+,Eu3+ phosphors are promising for solid-state lighting applications.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
M. Korzhik, P. Karpyuk, A. Bondarau, A. Ilyushin, I. Kamenskikh, D. Lelekova, V. Pustovarov, V. Retivov, V. Smyslova, D. Tavrunov, A. Vasil'ev
Summary: The crystalline ceramic material (Gd, Y)(3)Al2Ga3O12 codoped with Ce and Tb (GYAGG: Ce, Tb) has been proven to be a high light yield scintillator, making it suitable for detectors operating in a current measurement mode and as high-flux sources of optical photons under ionizing radiation of different types.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Hang Ning, Lianhua Tian
Summary: The study investigated the photoluminescence properties of novel green phosphors BaZn1.06Al9.94O17:Tb3+,Bi3+ and the impact of energy transfer. The co-doping of Bi3+ ions into Tb3+-doped BaZn1.06Al9.94O17 phosphors enhanced the emission intensity significantly, showing potential application value.
Article
Engineering, Electrical & Electronic
Zhongyuan Zhang, Weiling Yang, Xiliang Jiang, Shiyi Geng, Xu Zhang, Tianqing Zhang, Xinyu Wang, Xueming Shi, Zhuang Leng, Hai Lin, Keke Huang, Chun Li, Fanming Zeng, Zhongmin Su
Summary: In this paper, 1%Ho3+, 8%Yb3+ and x%Mn2+: BaY2F8 phosphors were prepared and characterized. The results showed the successful doping of Mn2+ ions into BaY2F8 phosphors and the change in relative emission intensity. The phosphors have potential applications in biomarkers, high-resolution imaging, and solar cells.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Optics
Ruotong Bao, Shan Jin, Dongmei Liu, Chong Wen, Jinlong Shi, Zhipeng Wang, Xiaoxian Yuan, Panlai Li, Zhiping Yang, Zhijun Wang
Summary: A series of color tuneable phosphors were synthesized and their emission properties were investigated. It was found that co-doping Mn2+/Eu2+ could shift the emission color from blue to white, showing potential application in white light emitting diodes.
Article
Chemistry, Inorganic & Nuclear
E. Monika, E. Rai, A. Bahadur, Shyam Bahadur Rai
Summary: In this article, Tb3+ and Eu3+ activated/co-activated ZnGa2O4 phosphors were synthesized and studied for their structural and optical characteristics. The crystallinity, phase purity, particle size, and elemental composition of the samples were analyzed using XRD, SEM, and EDS techniques. The FTIR and diffuse reflectance spectra were used to determine the phonon frequency and optical band gap. Tb3+ activated ZnGa2O4 phosphor exhibited blue, green, and orange-red emissions, while Eu3+ activated ZnGa2O4 phosphor showed strong red emission. The co-activated ZnGa2O4 phosphor exhibited color tunability and an energy transfer mechanism between Tb3+ and Eu3+ ions was observed. The findings suggest that the Tb3+, Eu3+ co-activated ZnGa2O4 phosphor has potential applications in solid-state lighting.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Seungyong Shin, Sangmoon Park
Summary: In this study, Ba6Ca3Al2Si6O24:Ce3+/Tb3+/Na+ phosphors were synthesized, and it was found that co-doping Na+ and Ce3+ into the crystal structure can enhance green emission, along with determining the energy transfer mechanism from Ce3+ to Tb3+. Additionally, the CIE coordinates from blue to green regions were monitored, thermal quenching was observed with increasing temperature, and the activation energy of the Tb3+ transition was calculated. The estimated relative quantum efficiency and internal quantum efficiency were obtained for the Ba5.4Ce0.1Tb0.2Na0.3Ca3Al2Si6O24 phosphors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Yanbin Wang, Xinyou Huang, Ziqiu Cheng, Penghui Chen, Yuyang Chen, Junhao Ye, Haohong Chen, Zhenzhen Zhou, Denis Yu Kosyanov, Jiang Li
Summary: Uniform Al2O3-Ce:LuAG composite phosphor ceramics (CPCs) with excellent luminescent properties and thermal stability have been successfully synthesized in this study, showing great potential for application in solid-state laser lighting.
Article
Materials Science, Multidisciplinary
Syed Muhammad Ali Zaidi, Mazhar Ali Kalyar, Zulfiqar Ali Raza, Aayesha Shoukat, Rubaila Waseem, Muhammad Aslam
Summary: Polyvinyl alcohol (PVA) nanocomposite strips embedded with graphene nanosheets and copper-ferrite nanoparticles were synthesized using solution casting technique. Laser pulse irradiations were then applied to modify the structural, optical, and electrical properties of the strips, showing potential for optoelectronic devices.
Article
Materials Science, Multidisciplinary
Yunru Chen, Jialing Wu, Jiajia Wang, Shihui Ma, Hongwei Yu
Summary: This paper investigates the angular non-critical phase-matching second-harmonic-generation properties of Ba3(ZnB5O10)PO4 crystal and explores its potential applications in the output spectral regions.
Article
Materials Science, Multidisciplinary
Qun Jing, Menglin Zhu, Lu Li, Xu Ji, Haiming Duan, Henglei Chen, Ming-Hsien Lee
Summary: The paper introduces two new nonlinear optical materials, MZnPO4 (M = Rb, Cs), synthesized by cation substitution. These materials exhibit a honeycomb-like structure and show mild SHG responses with short absorption edges. The thermal properties, IR spectra, and theoretical calculations of the materials are also discussed.
Article
Materials Science, Multidisciplinary
Camila Ianhez-Pereira, Akhil Kuriakose, Ariano De Giovanni Rodrigues, Ana Luiza Costa Silva, Ottavia Jedrkiewicz, Monica Bollani, Marcio Peron Franco de Godoy
Summary: This study aims to evaluate the crystalline changes induced by ultrafast laser micromachining on manganese oxide thin films using micro-Raman spectroscopy. The results show that laser-writing is effective in locally modifying low-crystallinity films and increasing crystallite sizes, highlighting an interesting approach to evaluate laser-induced structural modifications on metal oxide thin films.
Article
Materials Science, Multidisciplinary
Kamal Bansal, Neeraj Kumar Mishra, Ibrahim Abdullahi, Param Jeet Singh, Mohit Tyagi, Sukhpal Singh
Summary: A novel Sm3+ activated oxyfluoride glass was synthesized and its structure and properties were analyzed. The glass showed potential applications in lasers, optical temperature sensing, and high-energy scintillators.
Article
Materials Science, Multidisciplinary
Xingjian Wang, Zhixu Wu, Jiawei Zhu, Yubin Kang, Mengqiang Cai, Yong Xia, Hui Deng
Summary: Antimony sulfide (Sb2S3) has been investigated as a promising material for visible light photodetectors due to its non-toxicity, stability, and high absorption coefficient. In this study, we systematically explored the impact of key parameters on the performance of Sb2S3 devices using simulation and successfully fabricated self-powered photodetectors with high responsivity and specific detectivity. Furthermore, we demonstrated the application of the Sb2S3 detector in a scanning imaging system, showcasing its potential for developing new types of visible light detectors and imaging systems.
Article
Materials Science, Multidisciplinary
O. I. Sallam, R. M. Ahmed
Summary: The 20NaF-60P2O5-20Na2O fluorophosphate glass systems doped with 3 wt% of CoO and NiO were investigated for their optical parameters before and after gamma irradiation. The presence of defects within the glass network and the addition of transition metals were found to affect the properties of the composites. After irradiation, a red shift was observed in the dissipation factor spectrum. The energy lost at the surface of the composites was larger than the energy lost within the constituent materials. All investigated composites showed insulating behavior and exhibited increased nonlinear optical parameters after irradiation, with the CoO-doped composite showing the highest values.
Article
Materials Science, Multidisciplinary
Fahimeh Ahmadi, Zeinab Ebrahimpour, Asghar Asgari, Bao Van
Summary: In this study, Er3+-doped sulfophosphate glasses containing titanium nanoparticles (TiO2 NPs) and different concentrations of silver nanoparticles (AgNPs) were synthesized. The impact of AgNPs on the physical and structural characteristics, optical absorption and emission features, and photocatalytic activity of the glasses were investigated. The results showed that the addition of AgNPs enhanced the emission intensity of the glasses, with the system containing 0.04 mol% of AgNPs exhibiting optimal performance. Furthermore, the presence of AgNPs and TiO2 NPs in the glass matrix positively affected the photocatalytic performance.
Article
Materials Science, Multidisciplinary
Zhuang Li, Rongfei Huang, Wei Yuan, Shaoqiang Zheng, Wenlu Liao, Huiying Xu, Zhiping Cai
Summary: This study reports the first realization of an 868 nm Pr:YLF laser pumped by an InGaN blue laser diode. The laser achieved a maximum power of 641 mW with stable output and good beam quality. The experimental results were in agreement with theoretical simulations.
Article
Materials Science, Multidisciplinary
Bhishma Karki, Youssef Trabelsi, Amrindra Pal, Sofyan A. Taya, Ram Bharos Yadav
Summary: This study proposes an SF11 Prism- Ag- ZnO nanowires-CeO2-Sensing layer-based surface plasmon resonance sensor for measuring dopamine concentration in human blood. The sensor demonstrates high sensitivity and detection accuracy, and holds significant importance for early diagnosis of neurological diseases.
Article
Materials Science, Multidisciplinary
M. Taoufiq, A. Soussi, A. Elfanaoui, A. Ait Hssi, S. Baoubih, A. Ihlal, K. Bouabid
Summary: In this study, the effect of copper doping within ZnS on glass substrates was investigated through experimental and theoretical approaches. Pure ZnS and Cu-doped ZnS films with varying copper concentrations were deposited on glass substrates using the SILAR technique. The structural, morphological, and optical properties of the films were characterized, and the theoretical FP-LAPW method based on density functional theory was employed to study the properties of copper-doped ZnS.