Article
Chemistry, Multidisciplinary
Junru Chen, Xiaojie Chen, Yanyan Liu, Yang Li, Juan Zhao, Zhiyong Yang, Yi Zhang, Zhenguo Chi
Summary: This study successfully reported a single-component luminescent molecule, 3-SPhF, with colorful emissions and investigated various luminescent mechanisms and characteristics in its crystal, expanding the understanding of the regularity of multiple emission centers in single-component compounds with dibenzofuran substituents.
Article
Engineering, Electrical & Electronic
Dojalisa Sahu, Amrita Palai, Nihar Ranjan Panda
Summary: In this study, Y ZnO nanocrystallites were synthesized using ultrasonication and doped with boron and nitrogen. Structural changes in ZnO upon B/N doping were observed through XRD, with shifting and broadening of peak positions. Boron doping resulted in decreased electrical resistivity and increased carrier concentration in ZnO, while nitrogen doping initially increased carrier concentration before decreasing it.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Physics, Multidisciplinary
T. Luo, L. Lindner, J. Langer, V Cimalla, X. Vidal, F. Hahl, C. Schreyvogel, S. Onoda, S. Ishii, T. Ohshima, D. Wang, D. A. Simpson, B. C. Johnson, M. Capelli, R. Blinder, J. Jeske
Summary: This study systematically investigates the formation and properties of NV centers in chemical vapor deposition diamonds, optimizing NV concentration and charge states through adjustments of nitrogen flow and electron irradiation. It provides a pathway for improving the sensitivity of NV-doped CVD diamonds.
NEW JOURNAL OF PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Yixuan Fan, Lin Li, Gui Yu, Dechao Geng, Xiaotao Zhang, Wenping Hu
Summary: This article presents recent advances in preparing large-sized 2D single crystals on Cu substrates by CVD, focusing on the unique features of Cu, the growth of graphene and h-BN crystals on Cu substrates, growth mechanisms, and issues related to industrial-scale mass production.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yue Geng, Yingjie Zhao, Yuyan Zhao, Jiangang Feng, Jingyuan Zhang, Xin Fan, Hanfei Gao, Xue-Dong Wang, Lei Jiang, Yuchen Wu
Summary: Single-crystalline micro-/nanostructures based on organic stimulus-responsive materials have unique functional roles in various photonic applications. However, controlling the geometry and crystallographic orientation in solution processes is a challenge. A smart assembly method is used to regulate crystallization of organic molecules. The resulting vapor sensors and lasers based on these structures have high performance and multiple functions.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Coatings & Films
D. S. Misra
Summary: Single crystal diamonds grown by chemical vapor deposition (CVD) are gaining acceptance in the market for gem purposes and various applications. The nitrogen concentration in CVD diamond crystals is a major concern for certain applications, but it can be tolerated for gem purposes. This study investigates the correlation of nitrogen in different forms of vacancy centers in CVD diamond crystals with different fluorescence properties.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Physical
Quang Chieu Bui, Bassem Salem, Herve Roussel, Xavier Mescot, Youssouf Guerfi, Carmen Jimenez, Vincent Consonni, Gustavo Ardila
Summary: High temperature annealing under oxygen atmosphere has significant effects on the structure and properties of ZnO thin films, leading to improvements in grain boundary velocity and piezoelectric amplitude, ultimately enhancing the piezoelectric performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Optics
Si Gao, Yan-Zhao Duan, Zhen-Nan Tian, Yong-Lai Zhang, Qi-Dai Chen, Bing-Rong Gao, Hong-Bo Sun
Summary: Color centers are widely used in various fields such as quantum information and optics. Direct laser writing technology has emerged as an appealing alternative for inducing color centers with its advantages of true three-dimensional and high precision machining. This review comprehensively discusses the recent advances and applications of laser-induced color centers in different crystals, as well as current challenges and future perspectives in this area.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Lixuan Liu, Yang Yang, Stefan C. J. Meskers, Qingkai Wang, Liting Zhang, Chen Yang, Jianqi Zhang, Lingyun Zhu, Yajie Zhang, Zhixiang Wei
Summary: Supramolecular chiral organization in fused-ring electron-acceptor BTP-4F single-crystal-based phototransistors enables distinguished CPL discrimination capability with high current dissymmetry factor. The chirality at the supramolecular level originates from chiral exciton coupling of a unique quasi-2D organization. Finite element simulations reveal amplified, inverted, and anisotropic current dissymmetry.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Ceramics
Lanying Yuan, Haihong Ni, Junfeng Chen, Guilan Song, Xuejun Qi, Xiang Li, Tomoaki Karaki, Dong Wang
Summary: The characteristic absorption bands of red-colored crystals in BGO were studied through optical transmission and absorption spectra measurements; a modified oxygen-annealing method successfully eliminated the reddish crystals in BGO single crystal; after the elimination of red crystals, the light output and energy resolution of BGO crystals were greatly improved.
CERAMICS INTERNATIONAL
(2021)
Article
Energy & Fuels
Pawel Dabczynski, Gabriela Wojtowicz, Jakub Rysz
Summary: The fabrication of bulk heterojunction organic solar cells relies on the phase separation during solution deposition. However, this study reveals that interdiffusion of the same molecules is possible when bilayers of donors and acceptors are exposed to solvent vapor, providing a new method for mixing incompatible components.
Article
Materials Science, Multidisciplinary
Li-Qiang Cao, Bei-Jun Zhao, Shi-Fu Zhu, Bao-Jun Chen, Zhi-Yu He, Deng-Hui Yang, Hui Liu, Hu Xie
Summary: A high-quality ZGP single crystal with a large size of φ30mm×80mm was successfully grown and its quality was improved by annealing. The optimum annealing temperature was determined to be 600℃, resulting in an infrared transmittance of 56.78% at wavelength 2.0 μm and over 59.00% in the wavelength range of 3.0-8.0 μm. Annealing also decreased the deviations from stoichiometry and improved the homogeneity of the crystal. Additionally, a new nondestructive method using scanning infrared mapping was proposed for evaluating the optical quality and homogeneity of the crystal.
Article
Optics
Masanori Fujiwara, Shunsuke Inoue, Shin-ichiro Masuno, Haining Fu, Shigeki Tokita, Masaki Hashida, Norikazu Mizuochi
Summary: Recently, the creation of nitrogen-vacancy (NV) centers using ultrashort laser processing has gained attention for quantum information devices. This study demonstrates the creation of high-density NV centers in a wide region using a single intense femtosecond laser pulse, which is important for quantum sensing applications. The technique allows for the expansion of the region containing NV centers and has the potential to fabricate ultrahigh-sensitivity quantum sensors.
Article
Materials Science, Multidisciplinary
Tong Zhou, Mingyu Tong, Yun Zhang, Xiangnan Xie, Zhen-Yu Wang, Tian Jiang, Xie-Gang Zhu, Xin-Chun Lai
Summary: Researchers investigated the evolution of transport properties and band structures of Mg3Bi2 by doping different concentrations of Sb and observed phase transitions from TSM to SM and SM to insulator. Theoretical calculations were consistent with experimental results, leading to the development of a Mg(3)Bi(2-x)Sbx phase diagram for potential exploration of type-II NSM in Mg3Bi2 through element substitution.
Article
Materials Science, Multidisciplinary
E. Shablonin, A. I. Popov, G. Prieditis, E. Vasil'chenko, A. Lushchik
Summary: The study focused on the precise analysis of thermal annealing of F-2-type dimer defects in corundum single crystals irradiated by fast neutrons, with a discussion on the changes and mechanisms of dimer defects at different temperature ranges.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Chemistry, Physical
Vladimir A. Kulbachinskii, Nikolai S. Ezhikov, Roman A. Lunin, Boris M. Bulychev
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
(2020)
Article
Materials Science, Multidisciplinary
D. S. Zimbovskii, A. N. Baranov
INORGANIC MATERIALS
(2020)
Article
Physics, Condensed Matter
Yusuff Adeyemi Salawu, Minoru Sasaki, Vladimir Anatol'evich Kulbachinskii, Akimasa Ohnishi, Heon-Jung Kim
Summary: This study investigated the anisotropic magnetotransport and Fermi surface properties of Bi2-xSnxTe3 and Bi2Se3 using magnetic fields perpendicular and parallel to the applied currents. It was found that Bi1.995Sn0.005Te3 exhibited significant anisotropy, attributed to the nonparabolicity of the associated bands evolving towards more anisotropic band structures with an increase in Sn concentration. The sensitivity of band anisotropy to dopant concentration was unexpectedly high, providing insights into the electronic properties of functional materials.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Physics, Applied
N. S. Ezhikov, B. M. Bulychev, R. A. Lunin, V. A. Kulbachinskii
Summary: The paper presents experimental data on the synthesis and superconducting properties of potassium and rubidium heterofullerides modified by Wood's alloy or Y alloy. The samples obtained showed superconducting properties with different transition temperatures under the influence of different alloys.
LOW TEMPERATURE PHYSICS
(2021)
Article
Chemistry, Physical
Subarna Das, P. Singha, V. A. Kulbachinskii, V. G. Kytin, Gangadhar Das, S. Janaky, A. K. Deb, Sudip Mukherjee, A. Maignan, S. Hebert, R. Daou, Chandrabhas Narayana, S. Bandyopadhyay, Aritra Banerjee
Summary: This study investigates the reduction of lattice thermal conductivity (kappa(L)) in a Sb2Te3/graphite nanocomposite system, demonstrating a 40% decrease with graphite incorporation. Phonon scattering dominates the heat transport mechanism in the nanostructured composite, with graphite introducing effective scattering sources. The comprehensive study achieves a low kappa(L) value of 0.8 W m(-1)K(-1) at 300 K, making it an interesting concept for development in thermoelectric materials.
JOURNAL OF MATERIOMICS
(2021)
Article
Chemistry, Physical
Vladimir A. Kulbachinskii, Yan Zubavichus, Roman D. Svetogorov, Nikolai S. Ezhikov, Roman A. Lunin, Boris M. Bulychev
Summary: The synthesis of triammonium fulleride by ion exchange, the crystal structure similarities between (NH4)(3)C-60 and K3C60, as well as the tendency of ammonium and potassium to form solid solutions in the fulleride phase were investigated. The superconductivity of (NH4)(3)C-60-related phases was also confirmed with similar transition temperatures around 16.4 K.
Article
Chemistry, Multidisciplinary
Nikolai O. Taibarei, Vladimir G. Kytin, Elizaveta A. Konstantinova, Vladimir A. Kulbachinskii, Olga A. Shalygina, Alexander V. Pavlikov, Serguei V. Savilov, Viktor A. Tafeenko, Vladimir A. Mukhanov, Vladimir L. Solozhenko, Andrei N. Baranov
Summary: In this study, ZnO single crystals doped with group V elements were grown from high-pressure melts. The dopants, including Sb2O3, P, As, Sb, and Zn3X2 (X = P, As, Sb), were introduced in a high-pressure cell. The morphology of the crystals was investigated using optical microscopy and scanning electron microscopy. The crystal structure and lattice parameters were analyzed using X-ray diffraction and X-ray crystallography. The results showed that the dopants had a significant influence on the size, shape, and color of the crystals. X-ray photoelectron spectroscopy, photoluminescence spectroscopy, Raman spectroscopy, and electron paramagnetic resonance spectroscopy were used to study the valence states of the dopant elements, the nature of defects formed due to doping, and the formation and concentration of V-Zn and V-Zn complexes.
CRYSTAL GROWTH & DESIGN
(2022)
Review
Crystallography
Andrei N. Baranov, Petr S. Sokolov, Vladimir L. Solozhenko
Summary: This review examines new approaches for stabilizing metastable phases of zinc oxide and growing ZnO single crystals under high pressures and temperatures. It discusses the stabilization of cubic ZnO modification and solid solutions based on it, and describes a thermodynamic method for zinc oxide melting at high pressures that enables the growth of doped and undoped zinc oxide single crystals. The possibilities of using high pressure to vary phase and elemental composition and create ZnO-based materials are demonstrated.
Article
Chemistry, Multidisciplinary
Mikhail V. Shestakov, Victor A. Tafeenko, Yan V. Zubavichus, Igor A. Presniakov, Artem M. Abakumov, Gennady N. Panin, Andrei N. Baranov
Summary: ZnO nanorods codoped with Fe and Li were obtained through thermal growth using salt mixtures. Various analyses revealed the structure and composition of the nanorods, as well as the incorporation of Fe and Li atoms into the nanocrystal lattice. This study provides insights for the fabrication of ZnO multiferroic structures.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Nanoscience & Nanotechnology
Nikita Mitiushev, Eugene Kabachkov, Kirill Laptinskiy, Anatoly Firsov, Gennady Panin, Andrei Baranov
Summary: This study demonstrates the possibility of chemically modifying a graphene oxide film deposited on a Si/SiO2 substrate during a one-stage hydrothermal process by using fluorine ions and reducing agents. The modified graphene oxide film, known as reduced fluorinated graphene nitride oxide (RGOFN), can be obtained in the form of a thin film with a controlled composition of functional groups by adjusting the type and concentration of the reducing agent. XPS and IR spectroscopy analysis reveals controlled changes in the structure and composition of the graphene oxide film, including the removal of oxygen groups, incorporation of fluorine ions, reduction of conjugated double bonds, and controlled incorporation of nitrogen.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Petr S. Sokolov, Andrey N. Baranov, Vladimir L. Solozhenko
Summary: The phase stability and thermal expansion of rock-salt Me1-xZnxO (Me = Ni2+, Co2+, Fe2+, Mn2+) solid solutions synthesized at high pressures and high temperatures were studied. The rock-salt solid solutions were found to be kinetically stable up to a certain temperature depending on the composition and type of Me2+ cation. Temperature-induced decomposition of the solid solutions resulted in the formation of mixtures of two solid solutions with different crystal structures. The thermal expansion of the rock-salt solid solutions showed a linear temperature dependence, but deviations from the linear dependence were observed for compositions with the highest ZnO content.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Physical
Petr S. Sokolov, Andrey N. Baranov, Vladimir L. Solozhenko
Summary: Metastable ZnO-Lin-2MeOn-1 solid solutions with a rock-salt structure were synthesized through solid-state reaction. These solid solutions exhibited high thermal stability up to 1000 K at ambient pressure, with the decomposition temperature and products depending on the multiple charge cations.
Article
Chemistry, Physical
Nikolai O. O. Taibarei, Vladimir G. G. Kytin, Elizaveta A. A. Konstantinova, Vladimir A. A. Kulbachinskii, Serguei V. V. Savilov, Vladimir A. A. Mukhanov, Vladimir L. L. Solozhenko, Vadim V. V. Brazhkin, Andrei N. N. Baranov
Summary: The possibility of doping ZnO with Li, Na, and K in its metastable rock salt structure was investigated. MgxZn1-xO alloys and pure ZnO with a rock salt structure doped with Li, Na, and K metals were obtained for the first time by high-pressure synthesis. The presence of Li, Na, and K metals in rock salt ZnO was confirmed by electron energy-loss spectroscopy and X-ray photoelectron spectroscopy in MgxZn1-xO alloys.
Article
Nanoscience & Nanotechnology
V. A. Kul'bachinskii
NANOTECHNOLOGIES IN RUSSIA
(2019)
