Results 41 to 50 of about 319,926 (300)

Graphene Oxide/Perovskite Interfaces For Photovoltaics [PDF]

The Journal of Physical Chemistry C, 2018
Graphene-based materials hold a promising prospect for their utilization in perovskite solar cell devices as electron-extraction or hole-transport layers. Here, we investigate the role of oxidized graphene when interfaced with the perovskite MAPbI.
Zibouche, N, Volonakis, G, Giustino, F
openaire   +2 more sources

Chemical State Detection and Charge Transfer in Complex Oxide Heterostructures via In Situ Auger Electron Spectroscopy

Advanced Functional Materials, EarlyView.
In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian, Jayakanth Ravichandran   +1 more
wiley   +1 more source

Synthesis, Sintering, and Electrical Properties of BaCe0.9−xZrxY0.1O3−δ [PDF]

, 2008
BaCe0.9−xZrxY0.1O3−δ powders were synthesized by a solid-state reaction. Different contents of cerium and zirconium were studied. Pellets were sintered using either conventional sintering in air at 1700◦C or the Spark Plasma Sintering (SPS) technique ...
Caboche, Gilles, Estournès, Claude, Ricote, Sandrine, Ricote, S., Estournes, C., Caboche, G., Bonanos, Nikolaos   +6 more
core   +1 more source

Self-regulated growth of [111]-oriented perovskite oxide films using hybrid molecular beam epitaxy

APL Materials, 2021
Exotic material properties and topological nontrivial surface states have been theoretically predicted to emerge in [111]-oriented perovskite layers. The realization of such [111]-oriented perovskite superlattices has been found challenging, and even the
Joseph Roth, Tatiana Kuznetsova, Leixin Miao, Alexej Pogrebnyakov, Nasim Alem, Roman Engel-Herbert   +5 more
doaj   +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

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

LATTICE ENERGY DETERMINATION AND MOLECULAR SIMULATION OF PEROVSKITE OXIDES

Indonesian Journal of Chemistry, 2010
Determination of lattice energy, U, is an important work for ionic compounds, due to it is the driving force in the compounds formation. The objective this work are twofold, firstly to determine lattice energy of perovskite oxide using an approximate ...
Hellna Tehubijuluw, Ismunandar Ismunandar   +1 more
doaj   +1 more source

Oxidative Passivation of Metal Halide Perovskites [PDF]

Joule, 2019
Summary Metal halide perovskites have demonstrated extraordinary potential as materials for next-generation optoelectronics including photovoltaics and light-emitting diodes. Nevertheless, our understanding of this material is still far from complete.
Godding, J, Ramadan, A, Lin, Y, Schutt, K, Snaith, H, Wenger, B   +5 more
openaire   +2 more sources

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

High temperature elastic anisotropy of the perovskite and post-perovskite polymorphs of Al2O3 [PDF]

, 2005
Finite temperature ab initio molecular dynamics calculations were performed to determine the high temperature elastic and seismic properties of the perovskite and post-perovskite phases of pure end-member Al2O3.
Price, GD, Brodholt, JP, Stackhouse, S
core