Results 41 to 50 of about 105,088 (326)

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

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

Synthesis and electrochemical properties of LaMnO3 orthosized nanomaterial for supercapacitor applications

Фізика і хімія твердого тіла, 2020
In this work, the perovskite LaMnO3 material has been prepared based on the sol-gel process of synthesis with the participation of combustion. According to the X-ray phase analysis, it was determined that the obtained material consists of LaMnO3 one ...
B. K. Ostafiychuk, H. M. Kolkovska, I. P. Yaremiy, B. I. Rachiy, P. I. Kolkovskyi, N. Ya. Ivanichok, S. I. Yaremiy   +6 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

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

Processing and characterization of lead-free ceramics on the base of sodium–potassium niobate [PDF]

Journal of Advanced Dielectrics, 2018
Lead-free sodium–potassium niobate-based piezoelectric materials are most intensively studied in order to replace the widely used Pb-based ones. In this work, the effects of modification of compositions by donor and acceptor dopants in the A- and B-sites
E. D. Politova, N. V. Golubko, G. M. Kaleva, A. V. Mosunov, N. V. Sadovskaya, S. Yu. Stefanovich, D. A. Kiselev, A. M. Kislyuk, P. K. Panda   +8 more
doaj   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Non-$d^0$ Mn-driven ferroelectricity in antiferromagnetic BaMnO$_3$

, 2009
Using first-principles density functional theory we predict a ferroelectric ground state -- driven by off-centering of the magnetic Mn$^{4+}$ ion -- in perovskite-structure BaMnO$_3$.
Aaron S. Eidelson, James M. Rondinelli, Nicola A. Spaldin, R. E. Cohen   +3 more
core   +1 more source

Interfacial Morphology Addresses Performance of Perovskite Solar Cells Based on Composite Hole Transporting Materials of Functionalized Reduced Graphene Oxide and P3HT [PDF]

, 2018
The development of novel hole transporting materials (HTMs) for perovskite solar cells (PSCs) that can enhance device's reproducibility is a largely pursued goal, even to the detriment of a very high efficiency, since it paves the way to an effective ...
Abdu-Aguye, Mustapha, Gatti, Teresa, Girardi, Leonardo, Lamberti, Francesco, Loi, Maria Antonietta, Marega, Carla, Menna, Enzo, Perino, Luca, Petrozza, Annamaria, Rizzi, Gian Andrea, Salerno, Marco, Sorrentino, Roberto, Topolovsek, Peter   +12 more
core   +2 more sources

Advancing Electronic Application of Coordination Solids: Enhancing Electron Transport and Device Integration via Surface‐Mounted MOFs (SURMOFs)

Advanced Functional Materials, EarlyView.
The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu, Christof Wöll, Stefan Bräse   +2 more
wiley   +1 more source