Results 251 to 260 of about 43,328 (293)

Lead‐Free Double Perovskites for Perovskite Solar Cells

Solar RRL, 2019
Perovskite solar cells (PSCs) have achieved a high power conversion efficiency (PCE) with a credible certified value over 25%. More efforts have been devoted to the development of stable and ecofriendly perovskite materials. Lead‐free double perovskites (LFDPs) are a noteworthy choice as a photoactive layer because of their favorable photovoltaic (PV ...
Po-Kai Kung, Ming-Hsien Li, Pei-Ying Lin, Jia-Yun Jhang, Martina Pantaler, Doru C. Lupascu, Giulia Grancini, Peter Chen   +7 more
openaire   +2 more sources

Magnetism in Double Perovskites

Journal of Superconductivity and Novel Magnetism, 2012
Double-perovskite compounds with general formula ABB′O6, have attracted a lot of attention in recent years due to a variety of properties exhibited by them. In this paper, we will review our recent study on a number of double-perovskite compounds, namely La-doped Sr2FeMoO6, Cr-based family of compounds, Sr2CrXO6 (X=W, Re, Os), characterized with ...
openaire   +1 more source

Yttrium-based Double Perovskite Nanorods for Electrocatalysis

ACS Applied Materials & Interfaces, 2022
Herein, we investigate the effect of the chemical composition of double perovskite nanorods on their versatile electrocatalytic activity not only as supports for the oxidation of small organic molecules but also as catalysts for the oxygen evolution reaction. Specifically, Y2CoMnO6 and Y2NiMnO6 nanorods with average diameters of 300 nm were prepared by
Scott C. McGuire, Weiqiao Wesley, Kotaro Sasaki, Xiao Tong, Stanislaus S. Wong   +4 more
openaire   +2 more sources

Double Perovskite Interlayer Stabilized Highly Efficient Perovskite Solar Cells

ACS Applied Materials & Interfaces
Metal halide perovskite solar cell (PSC) technology has an impressive power conversion efficiency (PCE) exceeding 26.1% and demonstrates cost-effective manufacturing. However, the stability of these PSCs poses a significant challenge, hindering their widespread manufacturing and commercialization.
Wenjun Xiang, Ethan Cronk, Jacob Wall, Lin Li, Kai Zhu, Joseph J. Berry, Robert J. Lad, Liping Yu, Feng Yan   +8 more
openaire   +2 more sources

Multiferroicity in double perovskite Y2CoMnO6

AIP Conference Proceedings, 2012
We have synthesized the double perovskite Y2CoMnO6. The crystal structure is identified to be monoclinic (space group P21/n). We report detailed analysis of this material using XRD, magnetization, resistivity and dielectric constant measurements. A material from the same series, Lu2CoMnO6 has been reported to have E-type antiferromagnetic structure in ...
G. Sharma, J. Saha, S. Patnaik
openaire   +1 more source

Vacancy-Ordered Double Perovskites

2020
The related vacancy-ordered double perovskites can be produced by replacing one B-site cation with a vacancy, resulting in a material with the \(\text {A}_2\text {BX}_6\) formula (or \(\text {A}_2\text {B}\square {}\text {X}_6\), where \(\square \) is a vacancy).
openaire   +1 more source

Ba2PrPtO6: A novel double perovskite

Journal of Solid State Chemistry, 1992
The structure of the Ba 2 PrPtO 6 compound has been determined by X-ray powder diffraction and profile analysis and has been confirmed by TEM and HREM. The structure of this material is made up of alternating [PtO 6 ] and [PrO 6 ] octahedra along the three a, b , and c directions. Magnetic properties are also presented and discussed.
U. Amador, C.J.D. Hetherington, E. Moran, M.A. Alario-Franco   +3 more
openaire   +1 more source

ESR of double-perovskite Sr2FeMoO6

Physica B: Condensed Matter, 2002
Abstract We present an ESR study of Sr 2 FeMoO 6 in the paramagnetic region. A single line at g ≈2 was associated with Fe 3+ ions. The intensity follows Curie–Weiss law in the whole T range. For T >500 K a secondary line is attributed to ferromagnetic (FM) impurities.
M.T Causa, A Butera, M Tovar, J Fontcuberta   +3 more
openaire   +1 more source

Magnetoresistance stories of double perovskites

Pramana, 2015
Tunnelling magnetoresistance (TMR) in polycrystalline double perovskites has been an important research topic for more than a decade now, where the nature of the insulating tunnel barrier is the core issue of debate. Other than the nonmagnetic grain boundaries as conventional tunnel barriers, intragrain magnetic antiphase boundaries (APB) as well as ...
ABHISHEK NAG, SUGATA RAY
openaire   +1 more source

Superconductivity in a Ru-based double perovskite

Czechoslovak Journal of Physics, 1996
The double perovskite structure Sr2YRuO6 is an antiferromagnetic insulator with TN≈26 K. Partially substituted the Ru ion by Cu the compounds increase their conductivity drastically and eventually become superconducting. More intriguingly is the observation of the coexistence of superconductivity and magnetic order.
Sheen, SR, Ling, DC, Tai, CY, Wu, MK, Tseng, GY, Chen, DH, Chen, DY, Chien, FZ, Zhang, FC   +8 more
openaire   +3 more sources