Article
Chemistry, Physical
Alexander Veber, Turkka Salminen, Anne Matthes, Robert Mueller, Katrin Wondraczek, Laeticia Petit
Summary: Nanosized hydrated YbPO4·nH2O powders were prepared and further transformed into anhydrous YbPO4 xenotime form after calcination, displaying well-defined structure and enhanced optical properties. The synthesized YbPO4 phosphors show excellent resistance to corrosion and negligible reaction with silica glass at high temperatures, making them suitable for preparing translucent glass-crystal composites.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Maria Arcentales, Raquel Martin-Sampedro, Ralph Santos-Oliveira, Mohamed F. Attia, Jeffrey N. Anker, Daniel C. Whitehead, Alexis Debut, Liquan Deng, Yuanna Zheng, Bing Hu, Maria P. Romero, Floralba Lopez, Frank Alexis
Summary: Natural and renewable resources from plants or animals are important for biomaterials due to their biocompatibility and availability. Lignin, a biopolymer present in plant biomass, can be used to create lignocellulosic nanoparticles with luminescent properties. These nanoparticles, derived from rose biomass waste, exhibit high photoluminescence in the near-infrared (NIR) region and have potential for bioimaging applications due to their small size, low toxicity, blood circulation, and ability to be excreted.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Zhaowu Wang, Haipeng Ji, Zongtao Zhang, Jian Xu, Deliang Chen
Summary: This study discusses the challenges and solutions of using the cation exchange method to dope Mn4+ into Na2SiF6 single crystals for synthesizing white LED phosphors, resulting in Na2SiF6 single crystals with intense emission peaks.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Juan Xie, Guang-Chao Zheng, Yang-Ming Hu, Farhat Nosheen, Zhi-Cheng Zhang, Er-Jun Liang
Summary: In this work, high-quality tetragonal phase Ba3Sc2F12 nanocrystals were successfully synthesized with uniform morphology and good dispersibility, and their upconversion luminescence property was investigated. Energy transfer processes were discussed by optimizing the doping concentrations of sensitizer and activator. Additionally, tetragonal Ba3Sc2F12 nanocrystals were found to gradually transform into hexagonal Ba4Yb3F17 with increasing Yb3+ doping content.
Article
Chemistry, Inorganic & Nuclear
Chaojie Li, Jiyou Zhong, Huan Jiang, Peng Shi
Summary: A new efficient and thermally stable garnet phosphor, Gd3In2Ga3O12:Cr3+, with a broadband emission peak, has been reported for potential broadband NIR pc-LED applications.
DALTON TRANSACTIONS
(2022)
Article
Materials Science, Multidisciplinary
Pawan Kumar, Rajkumar Patel, Navadeep Shrivastava, Madhumita Patel, Simon Rondeau-Gagn, Gurpreet Singh Selopal
Summary: Accurate temperature measurement is crucial for scientific research and industrial manufacturing. Traditional thermometers are not considered accurate enough for submicrometric spatial resolution. The development of non-contact luminescence thermometry has provided an attractive alternative for high-precision temperature sensing. This review summarizes recent advances in luminescence thermometry using novel luminescent materials, and discusses the importance and various effects of temperature on photoluminescence features. The review also covers different types of luminescent materials used for temperature sensing.
APPLIED MATERIALS TODAY
(2023)
Article
Multidisciplinary Sciences
Sylwia Ryszczynska, Inocencio R. Martin, Tomasz Grzyb
Summary: Recently, the upconversion phenomenon has attracted attention in luminescence thermometry due to its potential for precise and remote optical thermal sensing. In this study, unique nanoparticles were synthesized and showed significant changes in emission intensity with temperature. By comparing the luminescence intensity ratios of the near-infrared bands, we demonstrate that they possess unique and excellent optical temperature sensing properties.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Inorganic & Nuclear
Zakariae Amghouz, Rafael Mendoza-Merono, Alaa Adawy
Summary: This paper reports the crystallization of single α-TiP crystals through prolonged hydrothermal treatment of a metallic titanium alloy in a highly concentrated phosphoric acid solution. The crystalline structure of the obtained crystals was analyzed and their properties were investigated. The results showed that the α-TiP crystals have a monoclinic structure and exhibit higher thermal stability.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Yuanrui Li, Bonan Shi, Fei Gao, Zhou Yang, Chaoqun Zhang, Jiahui Li, Chenrui Lu, Xin Yu, Shengzhong Frank Liu
Summary: Photoluminescence (PL) is a direct embodiment of the photoelectric characteristics of a material. In this study, tin doped cuprous oxide (Cu2O) was prepared and a strong near infrared PL was observed, which is promising for improving the performance of Cu2O photoelectric devices.
Article
Materials Science, Multidisciplinary
Monica Distaso
Summary: This study reports the synthesis of hybrid ZnO/polyvinyl-pyrrolidone hemispheres under microwave irradiation, which exhibit intense UV and negligible visible emission, making them suitable for blue optoelectronic applications. The formation mechanism of ZnO hemispheres is investigated.
Article
Chemistry, Physical
Mabel Rodriguez-Fernandez, Jose Carlos Pinero, Rodrigo Alcantara, Javier Navas
Summary: Luminescent materials, especially perovskite halide materials, have shown great potential in applications such as LEDs and sensors. This study prepared colloidal suspensions of CsPbI3 and Pd-doped CsPbI3 perovskite nanoparticles at different temperatures and characterized their structure and luminescence properties. The main photoluminescence band of perovskite nanoparticles were slightly red-shifted with increasing temperature. However, the Pd-doped CsPbI3 exhibited a new emission band at 877 nm under excitation at 785 nm. This compound may serve as a highly sensitive luminescent sensor in various applications, including biosystems.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Thulitha M. Abeywickrama, Yuanbing Mao
Summary: In this study, Yb3+ and Er3+ co-doped SrMoO4 submicron spindles with strong green upconversion luminescence (UCL) emission were synthesized via a hydrothermal (HT) process without annealing. The UCL intensity of the annealed samples surpassed those produced by the solid-state method and is comparable to that from the commercial NaYF4:Yb,Er sample. The temperature-dependent luminescence of the synthesized samples was also studied.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
N. Matskevich, A. N. Semerikova, V. N. Shlegel, V. P. Zaitsev, M. Yu Matskevich, O. Anyfrieva
Summary: A high perfect single crystal of Li2W0.95Mo0.05O4 was successfully grown with a low-temperature-gradient Czochralski technique, and its thermodynamics properties were studied. The results indicated that the stabilization energy of Li2W0.95Mo0.05O4 is significantly higher than that of ZnMoO4 and CdWO4, and a correlation was found between lattice energy and luminescence wavelength in Li2W1-xMoxO4 compounds.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Mao Zhou, Peixiong Zhang, Xiaochen Niu, Jiayu Liao, Qiudi Chen, Siqi Zhu, Yin Hang, Qiguo Yang, Hao Yin, Zhen Li, Zhenqiang Chen
Summary: The successful growth of a Bi/Er co-doped PbF2 laser crystal demonstrated enhanced near-infrared emission through Er3+ co-doping, suggesting potential for developing NIR solid-state lasers. The presence of two distinct Bi-related active centers around 1015 and 1080 nm further supports this conclusion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hyunseok Jang, Chao Zhao, Xiao Kong, Jaejung Song, Feng Ding, Seungho Cho
Summary: Understanding the material formation mechanisms and their selective realization is crucial for the development of new materials for advanced technologies. The homoepitaxial growth of nanomaterials on bulk materials is not thermodynamically favorable due to higher specific surface energies. Two key factors for favorable growth were identified: the crystal facet stabilization effect of capping agents during the early stages of growth, and the change in the dominant growth mode during the reaction in a closed system. Spontaneous, homoepitaxial growth of nanomaterials enables the realization of unprecedented, complex, hierarchical, single-crystalline structures required for future technologies.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Chengtao Xia, Linlin Lu, Weijun Zhu, Jinxin Chen, Jiahao Cao, Deren Yang, Xiangyang Ma
Summary: By codoping zirconium (Zr) into the TiO2 host, the erbium (Er)-related visible and near-infrared electroluminescence from the TiO2:Er/p(+)-Si heterostructured LED can be significantly enhanced. The substitution of oversized Zr4+ ions for Ti4+ ions in the TiO2 lattice leads to a slightly distorted crystal field for the incorporated Er3+ ions, increasing the intra-4f transition probabilities and enhancing the characteristic visible and near-infrared emissions.
Article
Physics, Applied
Yuanchao Huang, Yixiao Qian, Yiqiang Zhang, Deren Yang, Xiaodong Pi
Summary: Research shows that the diffusion of aluminum in 4H silicon carbide is actually mediated by silicon interstitials, with a lower activation energy compared to diffusion mediated by carbon vacancies. Experimental results are consistent with computational findings.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Biao Li, Xuehui Xu, Yuxin Yao, Pengjie Hang, Chenxia Kan, Ying Wang, Yiqiang Zhang, Yang (Michael) Yang, Deren Yang, Xuegong Yu
Summary: This study investigates the influence of the dipole moment of A-site ions on the migration of iodine ions in perovskite films. It finds that a decrease in the dipole moment of A-site ions leads to a decrease in the activation energy of iodine ions. Therefore, increasing the dipole moment of A-site ions can be an effective strategy for suppressing iodine migration in perovskite films and enhancing the long-term stability of PSCs.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Yuanchao Huang, Rong Wang, Naifu Zhang, Yiqiang Zhang, Deren Yang, Xiaodong Pi
Summary: This study investigates the role of hydrogen in the growth of HPSI 4H-SiC single crystals, revealing that it significantly mitigates N doping while hardly affecting B doping. The study also reveals that adjusting the relative B and N doping concentrations has a substantial impact on the Fermi energy of HPSI 4H-SiC.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Jie Hu, Houwei Pang, Yuan Wang, Deren Yang, Dongsheng Li
Summary: A long-term reliable Erbium doped light emitting device based on npn heterojunction structure has been developed. The device demonstrates a linear relation between the electroluminescence intensity of Er3+ ions and the operating currents. The device with a 3V onset voltage can operate for over 1200 hours due to the separation and acceleration of electrons that excite Er3+ ions. This npn heterojunction device structure can also be applied to other rare earths like Tm, Eu, etc., which opens up possibilities for electroluminescence of rare earths and integrated silicon photonics.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Chemistry, Physical
Ye Lei, Deren Yang, Dongsheng Li
Summary: In this study, the spin-on-dopant technique was used to phosphorus dope soft-chemical-prepared silicon nanosheets, leading to improved photoelectric properties. It was observed that the doped samples exhibited approximately a 4-fold increase in luminescence intensity and luminescence lifetime compared to the undoped samples, attributed to the passivation of surface defects by phosphorus doping. Additionally, the combination of phosphorus doping and high-temperature heat treatment resulted in a 6-fold reduction in resistivity of multilayer silicon nanosheets compared to as-prepared samples. Overall, this research brings soft-chemical-prepared silicon nanosheets one step closer to practical application in optoelectronics.
Article
Chemistry, Multidisciplinary
Liang Ji, Sai Luo, Lei Li, Ningkang Qian, Xiao Li, Junjie Li, Jingbo Huang, Xingqiao Wu, Hui Zhang, Deren Yang
Summary: Developing high-performance electrocatalysts for hydrogen evolution reaction in alkaline media is challenging but desirable for water splitting. A wet chemistry method was used to synthesize RuCu nanoflowers with tunable atomic ratios. The Ru3Cu NFs exhibited excellent catalytic properties, requiring only 55 mV for a current density of 10 mA cm(-2) and showing minimal decay after 2000 cycles. The flower-like structure and introduction of Cu improved the HER performance by providing more active sites and modulating the electronic structure of Ru.
NANOSCALE ADVANCES
(2023)
Article
Physics, Applied
Rong Wang, Yuanchao Huang, Deren Yang, Xiaodong Pi
Summary: The widespread application of 4H silicon carbide (4H-SiC) is imminent due to the increasing fabrication of high-power electronics based on 4H-SiC, promoting low-carbon development worldwide. Additionally, researchers are intensively exploring 4H-SiC as a platform for wafer-scale integration of semiconductor and quantum technologies in the field of quantum technologies. Given the significance of impurities and defects in semiconductors, a comprehensive understanding of impurities and defects in 4H-SiC is crucial. This Perspective summarizes recent experimental and theoretical advancements in impurity and defect research in 4H-SiC, along with a brief historical overview. Furthermore, the discussion covers impurity engineering and defect engineering to fully realize the potential of 4H-SiC, followed by an outline of the challenges in studying impurities and defects in 4H-SiC.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Xiaoshuang Liu, Yazhe Wang, Xi Zhang, Yunhao Lu, Rong Wang, Deren Yang, Xiaodong Pi
Summary: We investigated the crack-healing mechanism of 4H silicon carbide (4H-SiC) and found that high-temperature thermal annealing in the air atmosphere effectively heals indentation-induced cracks in undoped 4H-SiC by the formation and viscous flow of SiO2. Nitrogen doping assists the atomic diffusion and crack healing of 4H-SiC, while vanadium doping hinders the healing process. The padding of glassy SiO2 is found to effectively recover the bending strength of indented 4H-SiC samples.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Lei Yang, Yuxuan Fan, Xiang Lv, Houwei Pang, Shuai Yuan, Xuegong Yu, Dongsheng Li, Deren Yang
Summary: This work investigates the influence of erbium (Er) doping on the SiNxOy/c-Si interface, and found that activated Er3+ ions can result in a higher positive charge density, leading to band bending and deeper depletion regions. Through deep-level transient spectroscopy (DLTS), a higher density of interface states and wider energy distribution were observed in the Er-doped samples. Energy dispersive X-ray spectroscopy (EDX) analysis further supports the interaction between Er impurities and intrinsic defects at the interface.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Multidisciplinary Sciences
Shengxuan Wang, Hao Cui, Sijia Jin, Xiaodong Pi, Haiyan He, Chunhui Shou, Deren Yang, Lei Wang
Summary: A new anti-reflection strategy is proposed in this study, using soft nanoimprint lithography to prepare textured structures on the outside of SiNx films. Experimental results show that these textured structures have wide spectrum anti-reflection performance.
Article
Chemistry, Multidisciplinary
Sheng'ou Lu, Hongyu Chen, Wei Hang, Rong Wang, Julong Yuan, Xiaodong Pi, Deren Yang, Xuefeng Han
Summary: The effect of nitrogen doping on dislocation proliferation in SiC crystals was investigated. The thermal field and thermal stress during PVT growth were calculated, and the dislocation density was calculated based on the Alexander-Haasen model. By comparing the calculation and experimental results, a possible value of effective stress was proposed to evaluate the effect of nitrogen doping on dislocation density in n-type SiC.
Article
Chemistry, Multidisciplinary
Ningkang Qian, Degong Ding, Liang Ji, Junjie Li, Hui Zhang, Deren Yang
Summary: In this study, three types of core-shell nanocrystals, Au73Pd27@Pt, Au66Pd34@Pt, and Pd@Pt, were successfully constructed using lattice engineering. The strain effect and ligand effect caused by Au were found to enhance the activity of Pt in the electrocatalytic CO2 reduction reaction (EOR). In situ FTIR studies confirmed that the EOR processes on these nanocrystals were dominated by the C2 pathway, which explained the enhancement of EOR activity by the faster kinetics of the C2 pathway producing acetate or acetaldehyde.
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
