Results 31 to 40 of about 107,798 (351)

The Effect of Firing Temperatures on Phase Evolution, Microstructure, and Electrical Properties of Ba(Zr0.05Ti0.95)O3 Ceramics Prepared via Combustion Technique

Medžiagotyra, 2014
In this work, the effects of calcination temperature (900 ºC – 1200 ºC for 2 h – 6 h) and sintering temperature (1350 ºC – 1550 ºC for 2 h) on phase evolution, microstructure and electrical properties of barium zirconate titanate Ba(Zr0.05Ti0.95)O3 (BZT)
Chittakorn KORNPHOM, Theerachai BONGKARN
doaj   +1 more source

Fabrication and Characterization of CH3NH3PbI3−x−yBrxCly Perovskite Solar Cells

Energies, 2016
Fabrication and characterization of CH3NH3PbI3−x−yBrxCly perovskite solar cells using mesoporous TiO2 as electron transporting layer and 2,2′,7,7′-tetrakis-(N,N-di-4-methoxyphenylamino)-9,9′-spirobifluorene as a hole-transporting layer (HTL) were ...
Atsushi Suzuki, Hiroshi Okada, Takeo Oku
doaj   +1 more source

Quasi-2D lead halide perovskite gain materials toward electrical pumping laser

Nanophotonics, 2021
Quasi two-dimensional (2D) lead halide perovskite materials have shown outstanding performance in various photoelectric devices, including perovskite light-emitting diodes (LEDs) and perovskite optical pumping lasers.
Zhao Chenyang, Qin Chuanjiang
doaj   +1 more source

Surface Modification and Enhancement of Ferromagnetism in BiFeO₃ Nanofilms Deposited on HOPG

Nanomaterials, 2020
BiFeO3 (BFO) films on highly oriented pyrolytic graphite (HOPG) substrate were obtained by the atomic layer deposition (ALD) method. The oxidation of HOPG leads to the formation of bubble regions creating defective regions with active centers ...
Shikhgasan Ramazanov, Dinara Sobola, Farid Orudzhev, Alexandr Knápek, Josef Polčák, Michal Potoček, Pavel Kaspar, Rashid Dallaev   +7 more
doaj   +1 more source

First-principles study of epitaxial strain in perovskites

, 2005
Using an extension of a first-principles method developed by King-Smith and Vanderbilt [Phys. Rev. B {\bf 49}, 5828 (1994)], we investigate the effects of in-plane epitaxial strain on the ground-state structure and polarization of eight perovskite oxides:
D. Vanderbilt, David Vanderbilt, J. B. Neaton, J. S. Speck, Karin M. Rabe, M. E. Lines, Oswaldo Diéguez   +6 more
core   +1 more source

Carbon Concentration Dependence of the Superconducting Transition Temperature and Structure of MgCxNi3

, 2001
The crystal structure of the superconductor MgCxNi3 is reported as a function of carbon concentration determined by powder neutron diffraction. The single-phase perovskite structure was found in only a narrow range of carbon content, 0.88 < x < 1.0.
Hayward, He, Huetter, J.W Lynn, Nagamatsu, Q Huang, R.J Cava, Scheil, T He, T.G Amos   +9 more
core   +1 more source

Phase equilibria and thermodynamic properties of oxide systems on the basis of rare earth, alkaline earth and 3d-transition (Mn, Fe, Co) metals. A short overview of [PDF]

, 2015
Review is dedicated studies of phase equilibria in the systems based on rare earth elements and 3d transition metals. It’s highlighted several structural families of these compounds and is shown that many were found interesting properties for practical ...
Aksenova, T. V., Cherepanov, V. A., Gavrilova, L. Ya., Kiselev, E., Urusova, A. S., Volkova, N. E.   +5 more
core   +2 more sources

Research Progress of Semi-Transparent Perovskite and Four-Terminal Perovskite/Silicon Tandem Solar Cells

Energies
Perovskite/silicon tandem solar cells are of great interest due to their potential for breaking the Shockley-Queisser limit of single-junction silicon solar cells.
Yunlong Zhang, Long Zhou, Chunfu Zhang
doaj   +1 more source

Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells

Nano-Micro Letters, 2020
Organic cation and halide anion defects are omnipresent in the perovskite films, which will destroy perovskite electronic structure and downgrade the properties of devices.
Wei Liu, Nanjing Liu, Shilei Ji, Hongfeng Hua, Yuhui Ma, Ruiyuan Hu, Jian Zhang, Liang Chu, Xing’ao Li, Wei Huang   +9 more
doaj   +1 more source

CVM studies on the atomic ordering in complex perovskite alloys

, 2000
The atomic ordering in complex perovskite alloys is investigated by the cluster variation method (CVM). For the 1/3\{111\}-type ordered structure, the order-disorder phase transition is the first order, and the order parameter of the 1:2 complex ...
A. G. Khachaturyan, B. L. Gu, B. L. Gu, B. P. Burton, B. P. Burton, Bing-Lin Gu, C. A. Randall, E. Husson, E. Husson, G. Ceder, J. Chen, Jian-She Liu, L. Bellaiche, L. Chai, L. E. Cross, L. E. Cross, M. A. Akbas, M. A. Akbas, M. E. Lines, R. E. Cohen, R. Kikuchi, S. -E. Park, S. Kawashima, T. R. Shrout, X. W. Zhang, Xiao-Wen Zhang, Zhi-Rong Liu   +26 more
core   +1 more source