Results 51 to 60 of about 45,325 (317)

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

High-Pressure, High-Temperature Studies of Phase Transitions in SrOsO₃Discovery of a Post-Perovskite

, 2022
Using a recently developed method for in situ high-pressure, laser heating experiments in diamond anvil cells, we obtained a novel post-perovskite phase of SrOsO3.
Martin Bremholm (1540225), Davide Ceresoli (1392322), Martin Ottesen (9518962), Francesca Menescardi (14130053), Emma Ehrenreich-Petersen (9518968), Camilla Hjort Kronbo (14130050)   +5 more
core   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Inactive Al3+-doped La(CoCrFeMnNiAl x )1/(5+x)O3 high-entropy perovskite oxides as high performance supercapacitor electrodes

Journal of Advanced Ceramics, 2022
A series of high-entropy perovskite oxides (HEPOs) La(CoCrFeMnNiAl x )1/(5+x)O3−δ (x = 0.4, 0.5, 0.6, and 0.7) have been synthesized by coprecipitation method combined with calcination process and explored as electrodes for supercapacitors.
Meng Guo, Yufeng Liu, Fengnian Zhang, Fuhao Cheng, Chufei Cheng, Yang Miao, Feng Gao, Jun Yu   +7 more
doaj   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Shear-induced material transfer across the core-mantle boundary aided by the post-perovskite phase transition

, 2005
We present a novel mechanical model for the extraction of outer core material upwards across the CMB into the mantle side region of D" and subsequent interaction with the post-perovskite (ppv) phase transition.
Brodholt, John, Petford, Nick; id_orcid, Petford, Nick, Rushmer, Tracy, Yuen, D., Stackhouse, Stephen, Yuen, Dave   +6 more
core   +1 more source

Perovskite-Like Organic–Inorganic Hybrid Lead Iodide with a Large Organic Cation Incorporated within the Layers

, 2017
A great effort has been made to investigate 2D perovskites to improve the stability and controllability in the fabrication of photoelectronic devices.
Chong-Jiao Mo (1472242), Zhao-Qi Li (3758347), Guang-Lin Zhang (3758350), Qin-Yu Zhu (1472236), Jie Dai (54224), Chen-Jie Que (1472239)   +5 more
core   +2 more sources

Rationally Designed Bilayer Passivation Strategy for High‐Performance Vacuum‐Processed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A bilayer “Anchor‐and‐Seal” passivation strategy using EDAI2 and 4MeO‐PEAI effectively mitigates surface defects in vacuum‐processed perovskite films through synergistic hydrogen bonding and Lewis base coordination. This approach optimizes interfacial energy alignment and suppresses non‐radiative recombination, enabling vacuum‐deposited p‐i‐n ...
Mohammadhossein Kohan, Sang‐Heon Lee, Jaswinder Singh, Sung‐Nam Kwon, Seok‐In Na   +4 more
wiley   +1 more source

Cs₄PbBr₆ Combined with Graphite as Anode for High-Performance Lithium Batteries

Metals, 2022
Cs4PbBr6 quantum dots are glass-based materials. The perovskite structural material of Cs4PbBr6 quantum dots has shown an unexpected electronic performance.
Weigang Zhao, Cuirong Liu, Xu Yin
doaj   +1 more source