Results 41 to 50 of about 513 (218)

Excitonic states and structural stability in two-dimensional hybrid organic-inorganic perovskites

Journal of Science: Advanced Materials and Devices, 2019
Two-dimensional (2D) perovskites are a new class of functional materials that may find applications in various technologically important areas. Due to the better moisture and illumination stability, layered perovskites can be the next generation of ...
Yulia Lekina, Ze Xiang Shen
doaj   +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

Synthesis and electrical properties of doped layered perovskites based on BaMInO4 (M = Y, Gd)

Chimica Techno Acta
Perovskite or perovskite-related structural materials are widely studied for their many functional properties. They can be used as components of electrochemical devices such as solid oxide fuel cells and electrolyzers.
Nataliia Tarasova, Maxim Mashkovtsev, Maxim Domashenkov, Denis Khionin, Roman Bastrikov, Anzhelika Bedarkova   +5 more
doaj   +1 more source

Terahertz Antenna Array Based on a Hybrid Perovskite Structure

IEEE Open Journal of Antennas and Propagation, 2020
This article presents a novel terahertz (THz) antenna array design comprising a layered structure of a perovskite material which enhances the radiation characteristics of an antenna overlaid on a conventional metallic antenna element.
Abdoalbaset Abohmra, Hassan Abbas, Muath Al-Hasan, Ismail Ben Mabrouk, Akram Alomainy, Muhammad A. Imran, Qammer H. Abbasi   +6 more
doaj   +1 more source

Butanediammonium Salt Additives for Increasing Functional and Operando Stability of Light-Harvesting Materials in Perovskite Solar Cells

Nanomaterials, 2022
Organic diammonium cations are a promising component of both layered (2D) and conventional (3D) hybrid halide perovskites in terms of increasing the stability of perovskite solar cells (PSCs).
Natalia N. Udalova, Aleksandra K. Moskalenko, Nikolai A. Belich, Pavel A. Ivlev, Andrey S. Tutantsev, Eugene A. Goodilin, Alexey B. Tarasov   +6 more
doaj   +1 more source

Extremely Long Electron Lifetime in Spontaneously Passivated Polycrystalline Perovskite Layers via Illumination‐Assisted Trap Filling

Advanced Functional Materials, EarlyView.
ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura, Ryuzi Katoh, Takurou N. Murakami   +2 more
wiley   +1 more source

Soft chemical control of the crystal and magnetic structure of a layered mixed valent manganite oxide sulfide

APL Materials, 2015
Oxidative deintercalation of copper ions from the sulfide layers of the layered mixed-valent manganite oxide sulfide Sr2MnO2Cu1.5S2 results in control of the copper-vacancy modulated superstructure and the ordered arrangement of magnetic moments carried ...
Jack N. Blandy, Artem M. Abakumov, Kirsten E. Christensen, Joke Hadermann, Paul Adamson, Simon J. Cassidy, Silvia Ramos, David G. Free, Harry Cohen, Daniel N. Woodruff, Amber L. Thompson, Simon J. Clarke   +11 more
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A Novel, Simple and Highly Efficient Route to Obtain PrBaMn₂O_5+δ Double Perovskite: Mechanochemical Synthesis

Nanomaterials, 2021
In this work, a mechanochemical route was proposed for the synthesis of the PrBaMn2O5+δ (PMBO) double layered perovskite phase. The mechanochemical reaction between Pr6O11, BaO2, and MnO powders with cationic stoichiometric ratios of 1/1/2 for Pr/Ba/Mn ...
Francisco J. Garcia-Garcia, María J. Sayagués, Francisco J. Gotor   +2 more
doaj   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

Layered Perovskite Materials for Photocatalytic Overall Water Splitting: Recent Advances, Enhanced Strategies, and Future Challenges

EcoEnergy
Achieving sustainable energy generation without causing environmental pollution is one of modern society's grand challenges. Photocatalytic overall water splitting (OWS) presents a sustainable option for producing the green energy vector H2 while ...
Na Li, Chao Cheng, Yilin Wang, Alex W. Robertson, Zhenyu Sun   +4 more
doaj   +1 more source