Results 31 to 40 of about 23,476 (287)

Understanding ferroelectricity in layered perovskites : new ideas and insights from theory and experiments [PDF]

, 2015
N. A. B. was supported by The Welch Foundation under Grant. No. F-1803. J. M. R. acknowledges support from the Penn State Center for Nanoscience, National Science Foundation grant no. DMR-1420620. Ph.G.
Benedek, Nicole, Djani, Hania, Ghosez, Philippe, Lightfoot, Philip, Rondinelli, James   +4 more
core   +1 more source

Chemical tuning of a double double perovskite oxide [PDF]

Chemical Communications
Chemical tuning has been demonstrated for the first time in a double double perovskite. Ordering over five cation sites is preserved in LaxCa1−xMnMnReO6 ferrimagnets up to x ≥ 0.5 while La3+/Ca2+ substitution tunes magnetic properties.
Azizah Almadhi, Sean D. Injac, Kunlang Ji, Clemens Ritter, J. Paul Attfield   +4 more
openaire   +3 more sources

Lead-free perovskite solar cells, what's next?

Next Energy, 2023
Although lead halide perovskite solar cells (PSCs) have achieved an efficiency of 25.7 %, the highly toxic composition, element lead, will hinder the use of PSCs in indoor photovoltaics, building-integrated photovoltaics and wearable devices.
Xinhui Luo, Xiao Liu, Liyuan Han
doaj   +1 more source

Griffiths phase-like behaviour and spin-phonon coupling in double perovskite Tb$_{2}$NiMnO$_{6}$ [PDF]

, 2011
The Griffiths phase-like features and the spin-phonon coupling effects observed in Tb$_2$NiMnO$_6$ are reported. The double perovskite compound crystallizes in monoclinic $P2_1/n$ space group and exhibits a magnetic phase transition at $T_c \sim$ 111 K ...
Chandrabhas Narayana, Diptikanta Swain, Hariharan N., Harikrishnan S. Nair, Pavan Kumar G. V., Shilpa Adiga, Suja Elzabeth   +6 more
core   +2 more sources

Lead-free perovskite and double perovskite solar cells

IOP Conference Series: Materials Science and Engineering, 2020
Abstract The toxicity and instability of lead-halide perovskite materials in the solar cells are yet demands must be resolved to vie to find alternatives of free lead-based halide perovskites and double perovskite materials. Here we report on the experimental synthesis of a new family of lead-free inorganic halide double perovskites ...
Aqel Mashot Jafar, Kawther A. Khalaph, Amar Moula Hmood   +2 more
openaire   +1 more source

A high-temperature double perovskite molecule-based antiferroelectric with excellent anti-breakdown capacity for energy storage

Nature Communications, 2023
Halide double perovskites have recently emerged as an environmentally green candidate toward electronic and optoelectronic applications owing to their non-toxicity and versatile physical merits, whereas study on high-temperature antiferroelectric (AFE ...
Yi Liu, Yu Ma, Xi Zeng, Haojie Xu, Wuqian Guo, Beibei Wang, Lina Hua, Liwei Tang, Junhua Luo, Zhihua Sun   +9 more
doaj   +1 more source

Effective three-band model for double perovskites [PDF]

, 2002
We start from a six-band model describing the transition-metal t2g orbitals of half-metallic double perovskite systems, such as Sr2FeMoO6, in which only one of the transition metal ions (Fe) contains important intratomic repulsion Ufe. By eliminating the
A. A. Aligia, A. A. Aligia, A. Chattopadhyay, A. E. Bocquet, A. Georges, A. Maignanan, B. García-Landa, D. D. Sarma, F. C. Zhang, G. Kotliar, H. B. Schuttler, H. Hasegawa, H. Kawanaka, H. Rosner, J. B. Torrance, J. C. Slater, J. H. Jefferson, J. Kanamori, J. Lindén, K. I. Kobayashi, K. I. Kobayashi, K. I. Kobayashi, L. F. Feiner, M. E. Simon, M. E. Simon, M. E. Simon, M. Itoh, M. J. Rozenberg, M. S. Moreno, P. Petrone, R. Frésard, R. I. Dass, R. R. Sharma, T. Saha-Dasgupta, V. Dorin, V. I. Belinicher, Y. Moritomo, Z. Fang   +37 more
core   +1 more source

Vapor‐Deposited Cs2AgBiCl6 Double Perovskite Films toward Highly Selective and Stable Ultraviolet Photodetector

Advanced Science, 2020
Double perovskites have shown great potentials in addressing the toxicity and instability issues of lead halide perovskites toward practical applications. However, fabrication of high‐quality double perovskite thin films has remained challenging.
Ming Wang, Peng Zeng, Zenghui Wang, Mingzhen Liu   +3 more
doaj   +1 more source

Electronic structure of Fe and magnetism in the $3d/5d$ double perovskites Ca$_2$FeReO$_6$ and Ba$_2$FeReO$_6$ [PDF]

, 2019
The Fe electronic structure and magnetism in (i) monoclinic Ca$_2$FeReO$_6$ with a metal-insulator transition at $T_{MI} \sim 140$ K and (ii) quasi-cubic half-metallic Ba$_2$FeReO$_6$ ceramic double perovskites are probed by soft x-ray absorption ...
Azimonte, C., Cezar, J. C., Gopalakrishnan, J., Granado, E., Ramesha, K.   +4 more
core   +2 more sources

Double perovskite Nd2FeTiO6 ceramics: Structural and electrical properties [PDF]

Processing and Application of Ceramics, 2023
Because of their high stability, innocuous behaviour, outstanding electric properties and multi-functionality, lead-free double perovskites have emerged as a promising alternative to lead-based perovskites. We present here the structural, microstructural,
Kumar Mrityunjay, Roy Sumit K., Singh Rahul K., Prasad Kamal   +3 more
doaj   +1 more source