Article
Spectroscopy
Miaomiao Zhu, Qincan Ma, Ning Guo
Summary: In this study, rare-earth-doped self-activated LiCa3ZnV3O12 (LCZV) vanadate phosphors were prepared and their crystal structure, non-contact temperature sensing, and luminescence properties were deeply studied. The emission of [VO4](3-) group and Eu3+ ions excited by ultraviolet light at 340 nm was monitored. The FIR from Eu3+ to [VO4](3-) exhibited excellent sensitivity performance at 303 K - 523 K. The Eu3+ doped LCZV phosphor not only can be used for high-temperature environmental safety signals but also is an extraordinary viable material in the field of optical sensing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Inorganic & Nuclear
Li Li, Xinji Li, Zhaojie Wu, Yongbin Hua, Xianju Zhou, Yongjie Wang, Zhongmin Cao, Sha Jiang, Guotao Xiang, Jae Su Yu
Summary: In this study, color tunable phosphors of Mn4+ and Tb3+ co-doped double-perovskite SrGdLiTeO6 (SGLT) were successfully synthesized and their crystal parameters and photoluminescence performances were investigated. By adjusting the doping ratio and temperature, the emission color of the phosphors could be tuned, and a wide temperature-range optical thermometry was developed.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Applied
Fuwen Liu, Ying Tian, Degang Deng, Ming Wu, Bowen Chen, Liuyan Zhou, Shiqing Xu
Summary: A novel non-contact optical thermometer utilizing dual-emitting La5Si2BO13:Ce3+,Eu2+ phosphors shows high sensitivity and temperature resolution, particularly effective in low temperature region. The variational emissions of Ce3+ and Eu2+ can be converted to signals for temperature measurement.
JOURNAL OF RARE EARTHS
(2021)
Article
Chemistry, Multidisciplinary
Claudia Manuela Santos Calado, Diogo Alves Galico, Muralee Murugesu
Summary: The impact of composition control and energy transfer on luminescence thermometry in a TbIII/EuIII dual-emitting molecular cluster-aggregate, known as {Ln20}, was investigated. The study of lifetime dynamics provides new insights into enhancing thermometric performance through rational planning and understanding intriguing optical properties.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Applied
Fuwen Liu, Degang Deng, Ming Wu, Bowen Chen, Liuyan Zhou, Shiqing Xu
Summary: Eu2+/Sm3+ co-doped Sr4La(PO4)(3)O phosphors were synthesized and showed high sensitivity and a wide range of temperature measurements, making them promising for applications in high-temperature optical thermometry.
JOURNAL OF RARE EARTHS
(2021)
Article
Optics
Yang Jin, Lefu Mei, Qingfeng Guo, Libing Liao
Summary: Whitlockite-type phosphors with adjustable chemical compositions and rich crystal positions have been prepared and investigated. The phosphors exhibit blue, yellow, and red emissions due to the presence of Dy3+ and Eu3+ ions. The emission characteristics and temperature sensing performance of the phosphors have been studied, and they show potential applications in w-LEDs, display devices, and as optical thermometers.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Neeraj Kumar Mishra, Aditya Kumar, Kaushal Kumar
Summary: This study presents a strategy to improve the deficiency of red component in Ce3+ doped garnet phosphors by widening the emission band through the incorporation of Cr3+ co-dopant. The Ce3+/Cr3+ co-doped garnet sample exhibits an ultra-broad emission band and shows good optical thermometric ability. PC-WLED devices using optimized compositions of Ce3+ doped garnet phosphor demonstrate good voltage stability and LED performance parameters.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Fengkai Shang, Chunhai Hu, Wei Xu, Xin Zhu, Di Zhao, Wenbin Zhang, Zhiguo Zhang, Wenwu Cao
Summary: Rare earth ions activated nanomaterials show promise for optical thermometry due to their unique photoluminescence characteristics. By utilizing phonon-assisted energy transfer, sensitive temperature measurement has been achieved with maximum relative sensitivities of approximately 2.3% K-1 in specific temperature ranges. Laser-induced heating effect significantly influences measurement sensitivity, but can be enhanced by utilizing square wave laser excitation in physiological temperature region.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Spectroscopy
Neeraj Kumar Mishra, Madan M. Upadhyay, Santosh Kumar, Kaushal Kumar
Summary: Dual mode emission was achieved in Ce3+/Yb3+/Er3+ ions activated Y3Al4GaO12 through effective energy transfer. The sample was characterized using various techniques, showing broad visible emission band and NIR emission bands. The material also exhibited up-conversion emission and optical thermometry ability.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Materials Science, Ceramics
Qianwen Wang, Xinmin Yu, Wuyunga Bao, Tong Wang, Hongbo Zhang, Chunhui Su
Summary: Tm2O3-Tb4O7-Sm2O3 tri-doped glass ceramics with eulytite-type structure were prepared by melt-annealing and crystallization. The crystallization can be controlled by adjusting the heat treatment temperature or time. XRD Rietveld analysis revealed the doping of rare earth ions into the Ba3Gd(PO4)3 lattice. The optical band gap values of the glass ceramics decreased significantly after heat treatment. Energy transfer from Tm3+ and Tb3+ to Sm3+ was confirmed by emission spectra and decay curves, and white light emission was achieved by adjusting the doping concentration of Sm2O3. The maximum relative sensitivity (Sr) was calculated to be 2.36% K-1 based on the temperature-dependent properties of the fluorescence intensity ratios of Sm3+/Tm3+ and Sm3+/Tb3+. The results suggest that Tm2O3-Tb4O7-Sm2O3 tri-doped glass ceramics can be potential materials for w-LEDs and optical temperature measurement.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Jiawen Wang, Ruoshan Lei, Shilong Zhao, Feifei Huang, Degang Deng, Shiqing Xu, Huanping Wang
Summary: A novel dual-mode optical thermometer material La2ZnTiO6:Bi3+/Eu3+ was designed, prepared and characterized, showing high sensitivity and excellent signal discriminability. The material has great potential for precise, sensitive and reliable temperature detection.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Zhaojie Wu, Li Li, Yongjie Wang, Faling Ling, Zhongmin Cao, Sha Jiang, Guotao Xiang, Xianju Zhou, Yongbin Hua, Jae Su Yu
Summary: A dual-mode optical thermometer utilizing a double-perovskite Mn4+/Sm3+ co-doped luminescent material was designed for precise temperature detection. The thermometer achieves accurate temperature measurement and high sensitivity through the fluorescence intensity ratio (FIR) and decay lifetime techniques.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Analytical
Guotao Xiang, Xiaotong Liu, Qing Xia, Xiuchong Liu, Su Xu, Sha Jiang, Xianju Zhou, Li Li, Dan Wu, Li Ma, Xiaojun Wang, Jiahua Zhang
Summary: An approximately monochromatic red upconversion emission was achieved in NaScF4: Yb3+/Er3+ nanoparticles by doping Mn2+ ions, which acted as bridges during the energy transfer process, leading to a significant acceleration of the red UC enhancement. The sample with 10% Mn2+ ions exhibited the strongest red luminescence and enabled ultrasensitive optical thermometry in the physiological temperature region.
Article
Optics
Jingzhou Song, Weiren Zhao, Hongshi Zhang, Yuan Liu, Hao Huang, Huanxin Yang, Hui Zhang, Jiyou Zhong
Summary: A series of dual-emitting phosphors NaMgBO3: Ce3+, Mn2+ were synthesized and characterized, demonstrating potential application in optical thermometry with excellent temperature sensitivity and resolution.
JOURNAL OF LUMINESCENCE
(2021)
Article
Spectroscopy
Bingjun Zhu, Naizhen Li, Shiqi Ren, Yunlong Liu, Dong Zhang, Qingru Wang, Qiang Shi, Qinglin Wang, Shuhong Li, Bingyuan Zhang, Wenjun Wang, Cailong Liu
Summary: Zn1-xMnxAl2O4:0.1 mol% Cr3+ (0.04 <= x <= 0.16) phosphors with single spinel phase were synthesized using sol-gel method. The Mn2+/Cr3+ co-doped ZnAl2O4 nanophosphors show green and red emission bands, with an energy transfer efficiency of 83% confirmed between Mn2+ and Cr3+. The temperature-sensitive properties show a relative sensitivity change from 3.7 %K-1 to 0.25 %K-1 over a temperature range from 80 K to 310 K.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
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.