Article
Chemistry, Multidisciplinary
Jedrzej Winczewski, Manuel Herrera, Han Gardeniers, Arturo Susarrey-Arce
Summary: This paper presents the additive manufacturing of three-dimensional structured phosphors emitting red, green, blue, and white, which allows advanced applications in optics and photonics. This development is a step forward in realizing additive color synthesis within complex architectures relevant to integrated optics or light-emitting sources.
CHEMICAL COMMUNICATIONS
(2023)
Article
Optics
Subhamay Pramanik, Sandip Das, Riju Karmakar, Sk Irsad Ali, Sumit Mukherjee, Santanu Dey, Atis Chandra Mandal, Ajit Kumar Meikap, Probodh K. Kuiri
Summary: Defect-free photoluminescence (PL) emission is desirable for functional materials. The study shows that the presence of metal nanostructures near the semiconductor can reduce defect emission. Zn/ZnO nanocomposites (NCs) exhibit enhanced ultraviolet (UV) PL emission and reduced defect-mediated PL emission. The synthesis of Zn/ZnO NCs involves annealing Zn nano-octahedral in air and results in the formation of ZnO nanoparticles (NPs). The UV PL emission in Zn/ZnO NCs is enhanced due to the presence of metallic Zn.
JOURNAL OF LUMINESCENCE
(2023)
Article
Nanoscience & Nanotechnology
Yanfeng Yin, Hui Cheng, Wenming Tian, Minhuan Wang, Zixi Yin, Shengye Jin, Jiming Bian
Summary: An all-inorganic cesium lead halide perovskite has shown potential for high-performance optoelectronic devices due to its superior thermal stability. By controlled thermal annealing, stable white-light-emitting (5-CsPbI3 nanowires were obtained and used to create an excellent operational stability WLED lamp bead.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Ceramics
Ram Gopal, Jairam Manam
Summary: A series of white light emitting Pr3+ activated SrWO4 phosphors with good optical and structural properties were synthesized, which can be used for the fabrication of white LEDs.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
V. N. Kazuchits, N. M. Kazuchits, M. S. Rusetskiy, O. Korolik, A. Konovalova, O. Ignatenko
Summary: The paper investigates the effects of RHPHT annealing on synthetic Ib-type diamond plates at high temperatures and pressures. The process resulted in inhomogeneous plastic deformation of diamond plates, generating vacancies and nitrogen defects. Higher temperatures during RHPHT annealing led to the formation of more complex nitrogen aggregates. The number of defects was significantly greater after RHPHT annealing compared to quasi-stationary HPHT annealing.
Article
Chemistry, Multidisciplinary
Ruijing Fu, Wenya Zhao, Lingrui Wang, Zhiwei Ma, Guanjun Xiao, Bo Zou
Summary: By high-pressure processing, emission enhancement and non-doping control of color temperature can be achieved in two-dimensional perovskite nanocrystals.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Youkui Zheng, Hong Li, Tongsheng Yang, Junpeng Li, Shuqing Yang, Jing Zhu
Summary: A single-phase white-emitting phosphor Bi4BPO10 (BBP):Dy3+ was synthesized via a solid-state reaction route, and it exhibits satisfactory thermostability and potential for application in solid-state white lighting sources.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
L. Zaidi, A. Boukerika, Y. Larbah, L. Benharrat, K. Hammoum, N. Selmi, L. Guerbous
Summary: Gd3Al5O12: 1 at. % Ce3+ (GAG: Ce) nanopowders were synthesized by the Pechini sol-gel method. The effect of solution pH and annealing temperature on phase stabilization, particle morphology, and luminescence properties of GAG: Ce3+ was investigated. The study found that the appropriate pH and higher annealing temperature can enhance the stability and luminescence performance of GAG: Ce3+.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Optics
Pengfei Yu, Ruirui Cui, Gangyi Zhang, Jun Zhang, Chaoyong Deng
Summary: A series of Sr3In2WO9:xSm3+ (x = 0.02, 0.03, 0.04, 0.05, and 0.06) and Sr3In2WO9:0.04Sm3+, yEu3+ (y = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, and 0.35) phosphors were synthesized by solid-state reaction method. Then the microstructure and optical properties of samples were tested by the corresponding means. The results show that the optimal doping concentration of single-doped Sm3+ phosphor is x = 0.04 and the performance of Sm3+/ Eu3+ co-doped phosphors has been improved.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
P. Manyum, W. Rittisut, N. Wantana, Y. Ruangtaweep, S. Rujirawat, K. Kamonsuangkasem, R. Yimnirun, A. Prasatkhetragarn, N. Intachai, S. Kothan, H. J. Kim, J. Kaewkhao
Summary: A new glass system of lithium borate doped with Gd2O3 and Pr2O3 was successfully fabricated, and the physical parameters of the glass were measured. The synthesized glasses exhibited an amorphous structure, and the photoluminescence spectra showed characteristic emission bands resulting from f-f transitions of Pr3+ ions. The emission intensity initially increased with increasing concentrations of Pr2O3 up to 0.3 mol%, but beyond this concentration, the emission intensity started to decrease, indicating the occurrence of a quenching effect. XANES analysis confirmed the oxidation state of praseodymium ions, and the chemical composition of the glass was suitable for photonics applications.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Roman Yatskiv, Jan Grym, Sarka Kucerova, Stanislav Tiagulskyi, Ondrej Cernohorsky, Nikola Basinova, Jozef Vesely
Summary: This paper examines the effects of annealing atmosphere and temperature on defect-related emission in ZnO thin films and bulk substrates. The results demonstrate that post-annealing treatment is a powerful tool for modifying defects in ZnO and accurately tailoring emission wavelength. This research has significant implications in optoelectronics, particularly in LED, display, and biological labeling technologies.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Feng Du, Longsheng Du, Wenqi Xia, Qianqian Zhao, Zhihua Leng, Zuobin Tang
Summary: In this study, a mixed orthoborate-pyroborate phosphor, Ba2Sc2B4O11:Ce3+, was successfully synthesized, exhibiting bright yellow-green emission with a peak located at 540 nm under 410 nm excitation. The phosphor showed a quantum yield of 53.3%, making it a promising candidate for high quality white LEDs.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ling-Kun Wu, Ren-Fu Li, Wei-Yang Wen, Qing-Hua Zou, Heng-Yun Ye, Jian-Rong Li
Summary: By synthesizing and doping a series of hybrid organic-inorganic metal halides, we have successfully improved their photoluminescence quantum yield and observed strong yellow broadband emission and white light. This research provides new insights into the design of high-performance photoluminescent materials.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Haiping Xu, Zhizhuan Zhang, Xuehua Dong, Ling Huang, Hongmei Zeng, Zhien Lin, Guohong Zou
Summary: In this study, a single-component white-light-emitting hybrid metal halide was reported. It exhibited broadband white-light emission under 365 nm UV light irradiation. A single-component white-light-emitting diode device was fabricated using this material.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Kori D. McDonald, Bart M. Bartlett
Summary: Microwave heating in ethanol followed by annealing can rapidly produce high-yield crystalline MgFe2O4 nanoparticles. The degree of Mg and Fe site inversion changes the properties of the particles, and an ammonium salt mineralizer can help achieve a small particle size. Particles with the lowest inversion parameter generate the most hydroxyl radicals under visible light, leading to faster degradation of methylene blue dye.
INORGANIC CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
T. Rudenko, A. Nazarov, S. Barraud, V. Kilchytska, D. Flandre
SOLID-STATE ELECTRONICS
(2020)
Article
Chemistry, Physical
O. M. Slobodian, P. N. Okholin, P. M. Lytvyn, S. Malyuta, O. Yu Khyzhun, A. V. Vasin, A. Rusavsky, Yu Gomeniuk, V. Glotov, T. M. Nazarova, O. Gudymenko, A. N. Nazarov
Summary: Different plasma treatments can alter the surface properties of carbon films, enhancing sensitivity to ammonia but reducing sensitivity to water vapor. Nitrogen and forming gas treatments lead to increased hydrophilicity, while argon treatment results in increased hydrophobicity.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Andrii Vasin, Dmytro Kysil, Stanislav Sevostianov, Oksana Isaieva, Galyna Rudko, Bruno Capoen, Mohamed Bouazaoui, Hicham El Hamzaoui, Valentyn Tertykh, Sergii Starik, Alexei Nazarov
Summary: Nanoporous silica monoliths are employed as a morphological template for the liquid-phase synthesis of luminescent carbon nanodots. The morphology of the nanoporous silica template strongly influences the emission and excitation bands, with larger pore sizes resulting in a red shift of these bands. The successful synthesis of luminescent carbon nanodots is achieved through thermal treatment and subsequent extraction into water.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2021)
Article
Quantum Science & Technology
D. Savchenko, V. S. Memon, A. V. Vasin, D. Kysil, A. Rusavsky, O. P. Kuz, F. M. Gareeva, E. N. Kalabukhova
Summary: The study focused on the impact of aged luminescent zinc acetylacetonate ethanol solution on SiO2:C:Zn nanocomposites, revealing that carbon dangling bonds and oxygen-centered carbon-related radicals are in the sp(3)-hybridized state with weak ferromagnetic exchange interaction.
SEMICONDUCTOR PHYSICS QUANTUM ELECTRONICS & OPTOELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
A. V. Vasin, A. Rusavsky, S. Mamykin, A. S. Nikolenko, V. V. Strelchuk, R. Yatskiv, J. Grym, A. Gudimenko, V. P. Kladko, I. P. Tyagulskyy, J. Lorincik, I Elantyev, A. N. Nazarov
Summary: A study comparing the effects of methane and hydrogen on the properties of ZnO thin films deposited by magnetron sputtering has revealed that methane has a significantly larger n-type doping effect than hydrogen. Methane causes changes in the film's structure, including the loss of preferential orientation and a decrease in crystallite size. The photoluminescence of these films also shows a decrease in the green-yellow emission band and the development of a specific blue emission band.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Zinoviia Tsybrii, Mykola Vuichyk, Kateryna Svezhentsova, Mariia Smolii, Yuri Gomeniuk, Alexei Nazarov, Fedir Sizov
Summary: In this study, thin CdTe layers with a high degree of adhesion to CdHgTe epitaxial layers were successfully grown using the hot-wall method in low-temperature modes. The morphology, chemical composition, and electrical properties of CdTe films were investigated, revealing good dielectric properties and small leakage currents.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Andrii Vasin, Dmytro Kysil, Andriy Rusavsky, Oksana Isaieva, Alexander Zaderko, Alexei Nazarov, Volodymyr Lysenko
Summary: This review focuses on the synthesis and luminescent properties of luminescent carbon nanoparticles dispersed inside different types of nanostructured silica. The correlation between processing conditions and emission/excitation spectral properties, relaxation kinetics, and photoluminescence photodegradation behaviors is analyzed. The transformation of molecular-like ultraviolet emission of organic precursor into visible emission of carbon nanoparticles is demonstrated, and a novel method for the synthesis of luminescent and transparent composites is presented.
Article
Chemistry, Multidisciplinary
Dariya Savchenko, Andrii Vasin, Andrii Rusavsky, Alexei Nazarov, Jan Lancok, Ekaterina Kalabukhova
Summary: In this study, luminescent carbon dot-silica (CDs@SiO2) nanocomposites were synthesized from sucrose precursor using a bottom-up approach. The investigation using electron spin resonance (ESR) technique revealed the interaction between carbon-related radicals and carbon dots in the nanocomposites, as well as the relationship between CDs size and conductivity.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Engineering, Electrical & Electronic
Serhiy Kondratenko, Petro Lytvyn, Andrian Kuchuk, Fernando Maia de Oliveira, Hryhorii Stanchu, Volodymyr Lysenko, Marcio D. Teodoro, Serhiy Malyuta, Shui-Qing Yu, Yuriy Mazur, Gregory Salamo
Summary: The study focuses on the electronic properties of self-assembled Ge99Sn1 stripes surrounded by inhomogeneous Ge96.6Sn3.4 areas formed by the segregation and migration of Sn droplets on Ge89.5Sn10.5/Ge/Si(100). Nanoscale characterization of the microscale patterns using X-ray diffraction, Raman spectroscopy, and scanning probe microscopy revealed spatial inhomogeneity in work function, dominant p-type conductivity, and lateral variation in hole density by an order of magnitude. The experimental results show an electric-field-induced conductivity-type conversion from p to n in a self-assembled GeSn stripe, with a proposed model and calculations supporting the observed phenomena.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Mahsa Saberian, Alireza Nezamzadeh-Ejhieh
Summary: CuO was successfully supported on clinoptilolite nanoparticles (NCP) via ion exchange and calcination, forming CuO-NCP photocatalysts. CuO-NCP exhibited enhanced photocatalytic activity towards tetracycline (TC), and the best degradation performance was achieved under optimal conditions (25 ppm TC solution, pH 4.8, and 0.5 g/L catalyst).
SOLID STATE SCIENCES
(2024)