Results 71 to 80 of about 23,476 (287)

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Double perovskites with 3d and 4d/5d transition metals: compounds with promises

Materials Research Express, 2020
Double perovskites, which can host two different transition metal cations at the B-sites of its perovskite derived structure, provide the possibility to explore the interplay of localized 3d transition metals and the relatively delocalized 4d or 5d ...
Tanusri Saha-Dasgupta
doaj   +1 more source

Multiferroic double perovskites: Opportunities, issues, and challenges [PDF]

Journal of Applied Physics, 2010
A well-controlled coupled behavior in magnetoelectric materials at room temperature remains challenging. We demonstrate that the self-ordered A2B′B″O6 (e.g., A=La, B′=Mn, and B″=Ni) double perovskites provide a unique alternative opportunity to control and/or to induce such behavior in oxides.
Singh, M. P., Truong, K. D., Jandl, S., Fournier, P.   +3 more
openaire   +2 more sources

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Structural, Electronic, Elastic, Mechanical, Optical and Thermoelectric Properties of the Chalcogenide Double Perovskites A2GaNbS6 (A = Ca, Sr and Ba): Insights From Density Functional Theory Calculations

Annals of West University of Timisoara: Physics, 2022
Recently, the lead-free double perovskite compounds have been evinced to be promising candidate for thermoelectric and optoelectronic technologies.
Bendjilali H., Chahed A., Rozale H., Bousahla M.N., Khachai Y.A.   +4 more
doaj   +1 more source

In‐Situ Solution Complexation for n‐Type Surface‐Energetics Reconstruction in 2.0 eV Ultra‐Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A reactive in situ solution complexation strategy reconstructs the surface of 2.0 eV ultra‐wide‐bandgap perovskites via proton transfer. This chemical modulation eliminates metallic defects and induces a degenerate‐like n‐type surface, establishing an Ohmic tunneling contact.
Saemon Yoon, Han‐Gyun Lim, Jinyoung Kim, Gyu Min Kim, Seojun Lee, Jun Ryu, SungWon Cho, Jincheol Kim, Hyosung Choi, Jung Sang Cho, Jongsung Park, Dong‐Won Kang   +11 more
wiley   +1 more source

Tin‐Based Chiral Perovskites with Second‐Order Nonlinear Optical Properties

Advanced Photonics Research, 2021
Metal halide perovskites have attracted extensive attention as the most favorable candidate for nonlinear optical (NLO) effects, due to their superior infrared transparency, flexible structures, and high laser‐induced damage thresholds.
Liangliang Zhao, Xiao Han, Yongshen Zheng, Mei-Hui Yu, Jialiang Xu   +4 more
doaj   +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

Theory of transition temperature of magnetic double perovskites [PDF]

Physical Review B, 2001
We formulate a theory of double perovskite coumpounds such as Sr$_2$FeReO$_6$ and Sr$_2$FeMoO$_6$ which have attracted recent attention for their possible uses as spin valves and sources of spin polarized electrons. We solve the theory in the dynamical mean field approximation to find the magnetic transition temperature $T_c$.
Chattopadhyay, A., Millis, A. J.
openaire   +2 more sources

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source