Results 31 to 40 of about 43,328 (293)

Thermochromic Lead‐Free Halide Double Perovskites

open access: yesAdvanced Functional Materials, 2019
AbstractLead‐free halide double perovskites with diverse electronic structures and optical responses, as well as superior material stability show great promise for a range of optoelectronic applications. However, their large bandgaps limit their applications in the visible light range such as solar cells.
Ning, Weihua   +12 more
openaire   +3 more sources

Double Perovskite La2MnNiO6 as a High‐Performance Anode for Lithium‐Ion Batteries

open access: yesAdvanced Science, 2023
Traditional lithium‐ion batteries cannot meet the ever‐increasing energy demands due to the unsatisfied graphite anode with sluggish electrochemical kinetics.
Chang Zhang   +9 more
doaj   +1 more source

Influence of structural distortions on the Ir magnetism in Ba2-xSrxYIrO6 double perovskites

open access: yes, 2016
We explore the relative strengths of spin orbit coupling and crystal field splitting in the Ir5+ compounds Ba2-xSrxYIrO6. In the case of strong spin orbit coupling and regular Ir5+ octahedra, one expects a nonmagnetic J = 0 state; in the case of ...
Badoe Jr., Daniel   +4 more
core   +1 more source

Low energy paths for octahedral tilting in inorganic halide perovskites

open access: yes, 2018
Instabilities relating to cooperative octahedral tilting is common in materials with perovskite structures, and in particular in the sub class of halide perovskites.
Klarbring, Johan
core   +1 more source

Small‐Band‐Gap Halide Double Perovskites

open access: yesAngewandte Chemie, 2018
AbstractDespite their compositional versatility, most halide double perovskites feature large band gaps. Herein, we describe a strategy for achieving small band gaps in this family of materials. The new double perovskites Cs2AgTlX6 (X=Cl (1) and Br (2)) have direct band gaps of 2.0 and 0.95 eV, respectively, which are approximately 1 eV lower than ...
Adam H. Slavney   +6 more
openaire   +4 more sources

Heteroepitaxial passivation of Cs2AgBiBr6 wafers with suppressed ionic migration for X-ray imaging

open access: yesNature Communications, 2019
Ionic migration degrades not only the characteristics of halide perovskite solar cells, but also those of perovskite X-ray detectors. Here Yang et al.
Bo Yang   +11 more
doaj   +1 more source

The modelling and simulation of perovskite solar cell consisting textile-based electrodes

open access: yesResults in Surfaces and Interfaces, 2023
Perovskite solar cell (PSC) consisting textile-based electrodes has been created novel features for future energy supply. Recently, Cs0.05(FA0.85MA0.15)0.95Pb(I0.85Br0.15)3 perovskite has appeared as a favourable candidate for flexible perovskite solar ...
A. Rismanchi   +2 more
doaj   +1 more source

Structure, Transport and Magnetic properties in La$_{2x}$Sr$_{2-2x}$Co$_{2x}$Ru$_{2-2x}$O$_{6}$

open access: yes, 2010
The perovskite solid solutions of the type La$_{2x}$Sr$_{2-2x}$Co$_{2x}$Ru$_{2-2x}$O$_{6}$ with 0.25 $\leq$ x $ \leq $ 0.75 have been investigated for their structural, magnetic and transport properties. All the compounds crystallize in double perovskite
A. Das   +26 more
core   +1 more source

Enhancing the photophysical properties of absorption and luminescence in lightly doped halide double perovskite nanomaterials (Cs2Ag1-aBi1-bPbxBr6): Theory and experiment

open access: yesNext Materials
Lead-free halide double perovskites, such as Cs2AgBiX6, have emerged as less toxic alternatives to the lead-based solar cell absorbers, APbX3 (where A is a monovalent cation and X is halide). Despite their potential application in photovoltaics and x-ray
Celal Kursun   +4 more
doaj   +1 more source

Frustration by competing interactions in the highly-distorted double perovskites La2NaB'O6 (B' = Ru, Os)

open access: yes, 2012
The usual classical behaviour of S = 3/2, B-site ordered double perovskites generally results in simple, commensurate magnetic ground states. In contrast, heat capacity and neutron powder diffraction measurements for the S = 3/2 systems La2NaB'O6 (B ...
Aczel, A. A.   +6 more
core   +1 more source

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