Article
Chemistry, Multidisciplinary
X. Y. Jin, Z. Y. Wang, H. Y. Xu, M. C. Jia, Z. L. Fu
Summary: In this study, an advanced dynamic optical anticounterfeiting strategy based on Na2CaGe2O6: Tb3+/Tb3+, Yb3+ phosphors was reported, which achieved dynamic variation of photoluminescence (PL) color and persistent luminescence, providing a more effective method for anticounterfeiting and information encryption.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Optics
Vijay Singh, Ravita, Sumandeep Kaur, A. S. Rao, Hoonil Jeong
Summary: The study investigated the luminescence properties of La1-xP3O9:xTb(3+) phosphors, finding that 0.09 mol was the optimal concentration, with green emission observed at 546nm and CIE coordinates shifting towards the intense green region with increasing Tb3+ ion concentration.
Article
Chemistry, Physical
Pooja Rohilla, A. S. Rao
Summary: This work presents the morphological and photoluminescence studies of single ion Ho3+ doped and Ho3+/Yb3+ co-doped Ba3-x-yMoTiO8:xHo(3+)/yYb(3+) phosphors synthesized by a conventional solid-state reaction method. The results show promising applications of the phosphor in non-linear processes, as well as in linear and non-linear luminescence-based devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Applied
S. Hau, G. Stanciu, D. Avram, L. Gheorghe, C. Gheorghe
Summary: In this study, Tb3+-doped and Tb3+/Yb3+-codoped calcium niobium gallium garnet (Ca3Nb1.6875Ga3.1875O12 - CNGG) ceramics were synthesized using the solid-state reaction method. The structural characterization of the samples was performed using X-ray diffraction measurements. It was found that the optimal concentration of Tb3+ ions in CNGG:x at% Tb samples for maximum green luminescence was 4 at%. The time-resolved luminescence analysis revealed the quenching mechanisms involved in the green emission of Tb3+ ions. Additionally, CNGG:4 at% Tb,y at% Yb (y = 0.5, 2, 4, 6, 8, and 10) ceramics were prepared and showed intense green luminescence under UV, VIS, and NIR excitation, indicating the presence of both down-conversion and up-conversion processes. The dependence of UC luminescence intensity on the diode laser pumping power indicated a two-photon process based on cooperative energy transfer. Energy transfer from Yb3+ to Tb3+ ions was observed under UV excitation, while a strong energy transfer from Tb3+ to Yb3+ ions was observed under NIR excitation. The highest energy transfer efficiency of approximately 42% was achieved in the CNGG:4 at% Tb,10 at% Yb sample. These results suggest that CNGG:(Tb3+, Yb3+) could serve as efficient new yellowish-green-emitting phosphors.
JOURNAL OF RARE EARTHS
(2022)
Article
Optics
R. Kokate, Amol Nande, S. J. Dhoble, N. S. Reddy, Vijay Singh
Summary: Al2Y4-xO9:xTb3+ luminescent powder phosphors synthesized by the sol-gel method show promising luminescent properties and have the potential to be used as a single light source for green light emission in display devices. UV-VUV studies confirm the suppression of green peak transitions with decreasing excitation wavelength.
Article
Materials Science, Ceramics
Bingxin Zhu, Lei Wang, Qiufeng Shi, Haijie Guo, Jianwei Qiao, Caie Cui, Ping Huang
Summary: In this study, a series of novel Tb3+/Mn4+ co-doped SrLaMgNbO6 phosphors were synthesized and investigated for their structural, luminescence spectroscopic, and decay kinetics properties. The results showed that the phosphors exhibited temperature-dependent photoluminescence with distinct differences in fluorescence intensity ratios of Tb3+ and Mn4+, making them a viable candidate for dual-mode optical temperature detection.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Yan Zhang, Shihai Miao, Yanjie Liang, Chao Liang, Dongxun Chen, Xihui Shan, Kangning Sun, Xiao-Jun Wang
Summary: Extensive research on infrared light sources is being conducted due to the growing demand for spectroscopy applications in agriculture, retail, and healthcare. The development of ideal blue-pumped short-wave infrared (SWIR) phosphors is crucial for the design of cost-effective and high-performance phosphor-converted infrared LEDs. In this study, we have developed a series of SWIR-emitting materials with high efficiency and stability by co-doping Cr3+-Yb3+ ion pairs into Lu0.2Sc0.8BO3 host materials. The resulting Lu0.2Sc0.8BO3:Cr3+,Yb3+ phosphor emits intense SWIR light in the 900-1200 nm range under blue light excitation and shows promising potential for practical applications.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Yuhong Zhang, Bo Sun, Jian Liu, Ziyi Zhang, Hang Liu
Summary: Tb3+/Mn4+ co-doped Sr2LuTaO6 phosphors were successfully synthesized by a solid-state method. Under UV excitation, the phosphors exhibited bright green and red lights. The energy transfer from Mn4+ to Tb3+ enhanced the emission intensity of Tb3+ ions. Furthermore, the phosphors showed potential for optical thermometry based on luminescence intensity ratio technology.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Cui Chen, Yuxuan Xia, Zizheng Yue, Wenlin Feng, Xiaozhan Yang
Summary: A series of CaAl2O4 phosphors doped and co-doped with Tb3+ (or Bi3+) were successfully prepared by the solid state reaction method. The properties of these samples were characterized, revealing uniform distribution of elements and energy transfer mechanisms. Notably, the co-doped samples exhibited significant energy transfer effects.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
Zidong Zhou, Xueming Shi, Zhuang Leng, Xiliang Jiang, Weiling Yang, Huisheng Liu, Hongyuan Sha, Tianqing Zhang, Yongtao Li, Shasha Li, Hongliang Hu, Chun Li, Fanming Zeng
Summary: This study demonstrates highly efficient near infrared to green up-conversion emission from Yb3+ sensitized NaY(WO4)(2):Sm3+ phosphors. The energy transfer mechanism between Yb3+ and Sm3+ ions was investigated, confirming the presence of effective energy transfer.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Wen-Te Wu, Kwong-Kau Tiong, Yu-Wei Lee, Sheng-Yao Hu, Yueh-Chien Lee, Wei Huang
Summary: In this study, a series of Sm3+/Tb3+ co-doped CaMoO4 phosphors were synthesized by an efficient method of microwave-assisted heating. The research focused on the characterization and performance analysis of the synthesized phosphors. The results showed that the light-emitting region of the phosphors can be controlled by adjusting the molar ratio of Sm3+/Tb3+ ions, making them a promising material for color-tunable phosphors in white-LEDs.
APPLIED SCIENCES-BASEL
(2022)
Article
Optics
Vijay Singh, Pooja Rohilla, Sumandeep Kaur, A. S. Rao
Summary: In this study, Tb3+ activated Na3YSi2O7 phosphors with different amounts of Tb3+ ions were developed using sol-gel process. The structural analysis and luminescence behavior analysis confirmed the potential application of these phosphors in plasma display panels.
Article
Engineering, Electrical & Electronic
Shiyi Geng, Xiliang Jiang, Zhongyuan Zhang, Rujia Chen, Zidong Zhou, Xu Zhang, Huisheng Liu, Xueming Shi, Tianqing Zhang, Zhuang Leng, Chun Li, Weiling Yang, Hai Lin, Lina Liu, Shasha Li, Fanming Zeng, Zhongmin Su
Summary: Yb3+-Er3+ and Yb3+-Ho3+ co-doped Y2W3O12 phosphors were prepared and characterized. The best combination of ion doping concentration was found to be 20%Yb3+-1%Er3+ and 8%Yb3+-1%Ho3+. The emission spectra showed strong green and weak red emission for Yb3+-Er3+: Y2W3O12, and typical green and red emission for Yb3+-Ho3+: Y2W3O12, indicating an energy transfer process. These materials hold great potential for applications in up-conversion luminescence, laser, anti-counterfeiting, lighting, and other technologies.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
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
Chemistry, Inorganic & Nuclear
K. R. Ashwini, H. B. Premkumar, B. Daruka Prasad, G. P. Darshan, H. Nagabhushana, S. C. Sharma, S. C. Prashantha
Summary: Incorporating Tb3+ ions into strontium aluminate nanopowders using Carica papaya milk extract as fuel/surfactant through eco-friendly ultrasonication and combustion methods allowed for the synthesis of polycrystalline materials with strong green photoluminescence. The study suggested that 7 mol % Tb3+ doping was most suitable for green light production in WLED and display applications. The nanopowders showed excellent visualization capabilities, particularly in anti-counterfeiting applications using intense green light under 254 nm UV light.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Prashant Kumar, Wandi Wahyudi, Abhinav Sharma, Youyou Yuan, George T. Harrison, Murali Gedda, Xuan Wei, Abdulrahman El-Labban, Shahzad Ahmad, Vinod Kumar, Vincent Tung, Thomas D. Anthopoulos
Summary: This article reports a facile solvothermal synthesis approach for controlling the chemical composition in ternary Bi-S-I systems by simply controlling the sulfide concentration. The application of these bismuth-based ternary mixed-anion compounds as high capacity anode materials in rechargeable batteries is demonstrated. Cells utilizing Bi13S18I2 achieved an initial capacity value of 807 mA h g(-1), while those with BiSI/Bi13S18I2 reached a value of 1087 mA h g(-1) in lithium-ion battery systems.
CHEMICAL COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Rajat Bajaj, A. S. Rao, G. Vijaya Prakash
Summary: This paper reports the synthesis of thermally stable borosilicate glasses doped with europium ions. Characterization techniques such as XRD, DSC, and TGA were used to study the optical properties and thermal stability of the glasses. The research also analyzed the PL excitation, emission, and decay of the glasses for potential application in visible red photonic devices.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Kshetra Mohan Dehury, Jitendra Nath Acharyya, Mohammad Adnan, G. Vijaya Prakash
Summary: This study investigates the optical properties and charge carrier dynamics of 2D inorganic-organic hybrid semiconductors, revealing their strong nonlinear optical characteristics and ultrafast absorption dynamics, which are of great importance in developing advanced photonics and optical switching devices.
Article
Chemistry, Inorganic & Nuclear
Shahzad Ahmad, Rajamani Nagarajan
Summary: In this study, fluoride-doped CeO2 samples were successfully synthesized using the molten hydroxide flux promoted oxidative insertion approach. The optical and magnetic properties of the fluoride-doped CeO2 were found to be different from pure CeO2.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Environmental Sciences
Jyoti Tyagi, Shahzad Ahmad, Moksh Malik
Summary: The world has undergone revolutionary changes due to population surges in the last few decades. With the exponential increase in population, there is a high demand for food, water, and energy resources. One solution to address the pressure on food security is the application of nitrogenous fertilizers. However, excessive use of these fertilizers has negative impacts on soil, water, air, and human health. Strategies like the use of organic manure, compost, slow-release fertilizers, and enhanced nitrogen assimilation of crops have been employed to mitigate these damaging effects, but challenges such as food security and lack of information on agricultural developments need to be addressed. Currently, there is a need to reconsider the use of nitrogenous fertilizers to preserve environmental sustainability.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Physics, Applied
Chandra Prakash Verma, Asokan Kandasami, D. Kanjilal, Gaddam Vijaya Prakash
Summary: This study investigates the optical characteristics of porous Si-based microcavities before and after ion irradiation, and finds significant changes in color and resonance peak position. The altered refractive index of the microcavities induced by ion irradiation is crucial for optoelectronic applications.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Optics
A. K. Varshney, Mainuddin, Sanjeev Kumar, Ashwani Kumar, Gaurav Singhal, Mohini Gupta, G. Vijaya Prakash
Summary: The optical and thermal properties of Nd3+ doped inorganic liquid medium were investigated for the development of a scalable laser source. The synthesized liquid medium showed good lasing potential and transparency, and the thermal studies showed a feasible laser configuration. This study is very helpful for the development of scalable laser sources.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Jitendra Nath Acharyya, Narayana Rao Desai, R. B. Gangineni, G. Vijaya Prakash
Summary: The demonstration of precise control of femtosecond optical nonlinearity through photonic cavity in a novel nonlinear photonic crystal is presented. This photonic structure can be used in optical switches, optical limiters, and ultrafast photonic device applications.
Article
Nanoscience & Nanotechnology
Thejas Kurunthatil Kuttiat, Malini Abraham, Arup K. Kunti, Nuno Amador-Mendez, Maria Tchernycheva, Subrata Das
Summary: Modifying Mn4+-containing oxides has led to the development of new materials with strong deep-red emission, which can be used in high color rendering and cost-effective white-light emitting diodes (WLEDs).
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Pariksha Malik, Jitendra Nath Acharyya, Mohd Shanu, Albin Kuriakose, Santanu Ghosh, Pankaj Srivastava, G. Vijaya Prakash
Summary: In this study, a simple and fast laser writing technique was used to fabricate hierarchical silicon nitride (a-SiNx:H) microstructures for antireflection coating. The a-SiNx:H thin films with a wide range of optical band gap (2.32-5.94 eV) and refractive index (2.8-1.7) were deposited using plasma enhanced chemical vapor deposition. The interaction between high-intensity femtosecond laser and a-SiNx:H films resulted in diverse nano-/microstructures with significant light trapping and absorption capabilities.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Pawan K. Kanaujia, Mohammad Adnan, Kshetra Mohan Dehury, Mohammad Akram, G. Vijaya Prakash
Summary: Inorganic-organic (IO) hybrid semiconductors are fascinating optoelectronic materials due to their unique crystal structure, wide range of crystal phases, tunable bandgap, optical exciton characteristics, and optoelectronic properties. This study investigates the digitized intercalation process and dynamic structural deviations/evolution in mixed IO hybrid systems, resulting in the formation of 2D or 3D hybrid networks. Real-time photoluminescence monitoring reveals the progressive shift of exciton energies, providing insight into the nature of multiphase crystal packings in IO hybrid semiconductors.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Pratima Shukla, Jitendra Nath Acharyya, Pritam Mahawar, Hemant Kumar, Prakash Chandra Joshi, Vivek Kumar Singh, G. Vijaya Prakash, Selvarajan Nagendran
Summary: This article investigates the solid-state photoluminescence of stable germylene carboxylates for the first time. The study reveals that these compounds exhibit near-infrared emissions at room temperature, opening up new possibilities for low-valent main group element compounds to emit light in the solid-state.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Mohd Shanu, Jitendra Nath Acharyya, Muniappan Sankar, G. Vijaya Prakash
Summary: The optical nonlinearities of free-base porphyrins, a typical heterocyclic aromatic molecule, were investigated using intense femtosecond pulses over a broad spectral range. Both one-photon and multiphoton-induced nonlinear absorptions were observed, depending on the excitation wavelength. The results provide new insight into the nonlinear properties of porphyrins and their potential applications in the field of nonlinear optics and bio/optophotonics.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Manisha Bungla, Shruti Chowdhari, Mohd Shanu, Pragya Pragya, Vivekanandan Perumal, G. Vijaya Prakash, Ashok K. K. Ganguli
Summary: This study proposes NaBiF4 as an environmentally friendly and cost-effective host material for upconversion, and reports Yb3+/Tm3+ doped NaBiF4 submicron particles with photostable, wide upconversion emission range and high signal to background ratio.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Reshmi Thekke Parayil, Santosh Kumar Gupta, Malini Abraham, Subrata Das, Shreyas S. Pitale, Kathi Sudarshan, Manoj Mohapatra
Summary: Deep red-emitting Y2Zr2O7:Eu3+ (YZOE) pyrochlore nanocrystals with very high color purity, excellent thermal stability, and a high photoluminescence quantum yield (over 88%) are synthesized for color tunable white LEDs and indoor plant growth.
MATERIALS ADVANCES
(2023)
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.
