Results 61 to 70 of about 43,328 (293)

Mathematical modeling of the perovskite and double perovskite crystal structures

Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering, 2022
The paper considers the problem of modeling materials with the crystal structure of perovskite and double perovskite. Due to the high complexity of obtaining micro- and nanoscale objects, data on the structure and properties of such materials are especially important.
openaire   +1 more source

Comparing the performances of Cs2TiBr6, Cs2AgBiBr6, and Cs2PtI6 halide compositions in double perovskite photovoltaic devices

Materials for Renewable and Sustainable Energy
For commercial purposes in the solar cell field which toxicity and stability of lead-based perovskite solar cells (PSC) are important challenges, the presence of lead-free alternatives like Cs2TiBr6, Cs2AgBiBr6 and Cs2PtI6 double perovskites seems ...
Masood Mehrabian, Maryam Taleb-Abbasi, Omid Akhavan   +2 more
doaj   +1 more source

Electronic structures of lead-free Sn- or Ge-hybrid perovskite halides studied by first-principles calculation

Hybrid Advances
Although CH3NH3PbI3-based perovskite compounds have excellent photovoltaic properties, the lead (Pb) is harmful to the environment, and Pb-free perovskite compounds are needed for next generation solar cells.
Yu-Chen Kuo, Takeo Oku, Atsushi Suzuki, Iori Ono, Riku Okumura   +4 more
doaj   +1 more source

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

Advanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto, Sergey Dayneko, Antoine Pavesic Junior, Nicholas Sandor, Alexander Hart, Yuki Haruta, Magdalena Bazalova‐Carter, Marcos J. L. Santos, Makhsud I. Saidaminov   +8 more
wiley   +1 more source

Structural and doping effects in the half-metallic double perovskite $A_2$CrWO$_6$

, 2003
he structural, transport, magnetic and optical properties of the double perovskite $A_2$CrWO$_6$ with $A=\text{Sr, Ba, Ca}$ have been studied. By varying the alkaline earth ion on the $A$ site, the influence of steric effects on the Curie temperature ...
A. Arulraj, A. Erb, A. Ogale, A.K. Azad, A.K. Azad, A.K. Azad, A.K. Azad, A.W. Sleight, Bog-Gi Kim, C. Ritter, D. D. Sarma, D. Serrate, D. Topwal, D.D. Sarma, D.D. Sarma, D.D. Sarma, F. Galasso, F.K. Patterson, F.K. Patterson, G. Popov, H. Kato, H. Kato, H.Y. Hwang, Horng-Tay Jeng, J. B. Philipp, J. Gopalakrishnan, J. Kanamori, J. Longo, J. Navarro, J. Simon, J.B. Philipp, J.B. Philipp, J.M. Dai, J.P. Zhou, J.S. Park, K. Phillips, K.-I. Kobayashi, K.-I. Kobayashi, K.-I. Kobayashi, L. Alff, Ll. Balcells, M. García-Hernández, M. Imada, M. Itoh, M. S. Brandt, M. Shikano, M. Tovar, M.T. Anderson, M.W. Lufaso, O.K. Andersen, P. Majewski, R. Gross, R. Gross, R.D. Shannon, R.P. Borges, S.A. Wolf, T. Graf, T. Saha-Dasgupta, T. Walther, W. Mader, W. Prellier, W. Westerburg, W.H. Song, Y. Moritomo, Y. Moritomo, Y. Moritomo, Y. Moritomo, Y. Tokura, Y. Tomioka, Z. Fang   +69 more
core   +1 more source

High-pressure/high-temperature synthesis of transition metal oxide perovskites [PDF]

, 2006
Perovskite and related Ruddlesden-Popper type transition metal oxides synthesised at high pressures and temperatures during the last decade are reviewed. More than 60 such new materials have been reported since 1995.
Attfield, J. Paul, Rodgers, Jennifer A., Williams, Anthony J.   +2 more
core   +1 more source

Cation order control of correlations in double perovskite Sr_{2}VNbO_{6}

Physical Review Research, 2020
Double perovskites extend the design space for new materials and they often host phenomena that do not exist in their parent perovskite compounds. Here we present a detailed first-principles study of the correlated double perovskite Sr_{2}VNbO_{6}, where
Arpita Paul, Turan Birol
doaj   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Rare case of magnetic Ag$^{3+}$ ion: double perovskite Cs$_{2}$KAgF$_{6}$

, 2014
Normally $4d$ or $5d$ transition metals are in a low-spin state. Here using first-principles calculations, we report on a rare case of a high-spin $S$=1 magnetic state for the Ag$^{3+}$ ion in the double perovskite Cs$_{2}$KAgF$_{6}$.
Fan, Fengren, Jia, Ting, Khomskii, D. I., Li, X. G., Liu, Ting, Wu, Hua, Zeng, Zhi, Zhang, Xiaoli   +7 more
core   +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