Results 31 to 40 of about 23,096 (291)

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

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

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

Double Double Cation Order in the High‐Pressure Perovskites MnRMnSbO₆ [PDF]

Angewandte Chemie International Edition, 2016
AbstractCation ordering in ABO3 perovskites adds to their chemical variety and can lead to properties such as ferrimagnetism and magnetoresistance in Sr2FeMoO6. Through high‐pressure and high‐temperature synthesis, a new type of “double double perovskite” structure has been discovered in the family MnRMnSbO6 (R=La, Pr, Nd, Sm).
Solana Madruga, Elena, Arevalo Lopez, Angel, dos Santos-Garcia, Antonio J., Urones-Garrote, Esteban, Avila-Brande, David, Saez-Puche, Regino, Attfield, J. Paul   +6 more
openaire   +5 more sources

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

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

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

Thermochromic Lead‐Free Halide Double Perovskites

Advanced 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, Zhao, Xin‐Gang, Klarbring, Johan, Bai, Sai, Ji, Fuxiang, Wang, Feng, Simak, Sergei I., Tao, Youtian, Ren, Xiao‐Ming, Zhang, Lijun, Huang, Wei, Abrikosov, Igor A., Gao, Feng   +12 more
openaire   +3 more sources

Engrossing structural developments of double perovskites for viable energy applications

Materials Today Catalysis
Investigation for novel functional catalysts illustrates an essential direction in advancing and researching renewable energy. On account of their specific compositional and structural tunability and remarkable stability, double perovskites have been ...
Mariyam Saniya, Iqra Sadiq, Saman Shaheen, Sarvari Khatoon, Tokeer Ahmad   +4 more
doaj   +1 more source

Lead-Free Halide Double Perovskites: A Review of the Structural, Optical, and Stability Properties as Well as Their Viability to Replace Lead Halide Perovskites

Metals, 2018
Perovskite solar cells employ lead halide perovskite materials as light absorbers. These perovskite materials have shown exceptional optoelectronic properties, making perovskite solar cells a fast-growing solar technology.
Edson Meyer, Dorcas Mutukwa, Nyengerai Zingwe, Raymond Taziwa   +3 more
doaj   +1 more source