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E. N. Sgourou, N. Sarlis, A. Chroneos and C. A. Londos
Defects and impurities play a fundamental role in semiconductors affecting their mechanical, optical, and electronic properties. Nitrogen (N) impurities are almost always present in a silicon (Si) lattice, either unintentionally, due to the growth and pr...
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Ivan Shtepliuk
This paper presents a theoretical study on the effects of selected defects (oxygen vacancies and substitutional FeZn atoms) on the structural and electronic properties of a 2D ZnO/graphene heterostructure. Spin-polarized Hubbard- and dispersion-corrected...
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Wiem Bouslama, Ramzi Nasser, Bernard Gelloz, Amira Ben Gouider Trabelsi, Fatemah Homoud Alkallas, Ji-Ming Song, Ezzeddine Srasra and Habib Elhouichet
Undoped and codoped (Eu/Na) ZnO nanocrystals (NCs) were successfully manufactured through an economical sol-gel method. X-ray diffraction (XRD) analysis demonstrated pure hexagonal wurtzite structure without secondary phases for all the samples. The size...
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Alba Arenas-Hernandez, Carlos Zuñiga Islas, Mario Moreno, Wilfrido Calleja Arriaga, Julio César Mendoza-Cervantes, Netzahualcoyotl Carlos, Carlos Roberto Ascencio-Hurtado and Aurelio Heredia Jiménez
In this research work, we present the synthesis and characterization of four different TiO2 structures, such as nanotubes, nanocavities, nanosheets assembled on nanocavities and nanobowls assembled on nanocavities, prepared by electrochemical anodization...
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Navaratnarajah Kuganathan, Raveena Sukumar and Poobalasuntharam Iyngaran
There is a growing interest in finding a suitable electrolyte material for the construction of rechargeable Li-ion batteries. Li2NiGe3O8 is a material of interest with modest Li-ionic conductivity. The atomistic simulation technique was applied to unders...
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Juan Carlos Martínez-Munuera, Javier A. Giménez-Mañogil, Roberto Matarrese, Lidia Castoldi and Avelina García-García
Ceria-based catalysts, with Cu in substitution of noble metals, were studied in a vertical microreactor system under isothermal conditions, where NOx was previously stored, followed by the reduction step conducted under H2. The possible remaining ad-NOx ...
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Gaoxue Wang, Enrique R. Batista and Ping Yang
The fluorite structured actinide dioxides (AnO2), especially UO2, are the most common nuclear fuel materials. A comprehensive understanding of their surface chemistry is critical because of its relevance to the safe handling, usage, and storage of nuclea...
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Sabina Kuprenaite, Vincent Astié, Samuel Margueron, Cyril Millon, Jean-Manuel Decams, Zita Saltyte, Pascal Boulet, Valentina Plausinaitiene, Adulfas Abrutis and Ausrine Bartasyte
Precision control of resistivity/conductivity of LaNiO3 (LNO) films is essential for their integration as electrodes in the functional heterostructures. This becomes possible if the relationship between processing parameters–composition–struc...
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Irina Piyanzina,Volker Eyert,Thilo Kopp,Dmitrii Tayurskii
Pág. 88 - 92
The oxide heterostructure composed of LaAlO3 (LAO) thin film on top of SrTiO3 (STO) substrate is the best known example of a system where a metallic state is formed in the STO layers next to the interface [1]. In the frame of present work we analyze an i...
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Maroua Allani, Narjès Batis, Abdeldjelil Nehari, Hugues Cabane, Kheirreddine Lebbou, Christophe Pecheyran, Corine Reibel, Jean-Jacques Boy
Pág. 12 - 19
Langatate La3Ga5.5Ta0.5O14 is piezoelectric crystal from langasite family, commonly grown by Czochralski method from Ir crucible. Langatate crystals of different colors (colorless, orange, green) have been studied by optical spectroscopy in UV-Visible (2...
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