Results 71 to 80 of about 9,401 (294)

IONIC CONDUCTIVITY IN LAYERED PEROVSKITE SrLa2Sc2O7 [PDF]

, 2023
The layered perovskite SrLa2Sc2O7 was investigated as a protonic conductor for the first time. The synthesis was performed using solid state method. The possibility of water absorption was proved by thermogravimetric measurements.
Gnatyuk, V. D., Бедарькова, А. О., Тарасова, Н. А., Tarasova, N. A., Animitsa, I. E., Гнатюк, В. Д., Анимица, И. Е., Abakumova, E. V., Bedarkova, A. O., Абакумова, Е. В.   +9 more
core  

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

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

Emerging 2D layered materials for perovskite solar cells

, 2019
Perovskite solar cells (PSCs) are now at the forefront of the state-of-the-art photovoltaic technologies due to their high efficiency and low fabrication costs.
Shapter, Joseph G., Shapter, Joseph G, Munkhbayar Batmunkh, Joseph G. Shapter, Batmunkh, Munkhbayar, Abdulaziz S. R. Bati, Bati, Abdulaziz S. R., Bati, Abdulaziz SR   +7 more
core   +1 more source

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

Advanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk, Danis I. Badrtdinov, Kenji Watanabe, Takashi Taniguchi, Cyrus E. Dreyer, Malte Rösner, Maciej Koperski   +6 more
wiley   +1 more source

Stable Sn/Pb-Based Perovskite Solar Cells with a Coherent 2D/3D Interface

iScience, 2018
Summary: Low-band-gap metal halide perovskite semiconductor based on mixed Sn/Pb is a key component to realize high-efficiency tandem perovskite solar cells. However, the mixed perovskites are unstable in air due to the oxidation of Sn2+. To overcome the
Ziming Chen, Meiyue Liu, Zhenchao Li, Tingting Shi, Yongchao Yang, Hin-Lap Yip, Yong Cao   +6 more
doaj   +1 more source

A three-order-parameter bistable magnetoelectric multiferroic metal

Nature Communications, 2020
A room temperature single-phase multiferroic with large and strongly coupled polarization and magnetization is a long-sought goal in multiferroics research.
Andrea Urru, Francesco Ricci, Alessio Filippetti, Jorge Íñiguez, Vincenzo Fiorentini   +4 more
doaj   +1 more source

2-Terminal CIGS-perovskite tandem cells: A layer by layer exploration

Solar Energy, 2020
This paper focuses on the development of 2-terminal CIGS-perovskite tandem solar cells by exploring a range of stack sequences and synthetic procedures for depositing the associated layers. In the end, we converged at a stack sequence composed of SLG/Mo/CIGS/CdS/i-ZnO/ZnO:Al/NiO/PTAA/Perovskite/LiF/PCBM/SnO2/ITO.
Jacobsson, T. Jesper, Hultqvist, Adam, Svanström, Sebastian, Riekehr, Lars, Cappel, Ute B., Unger, Eva, Rensmo, Håkan, Johansson, Erik M. J., Edoff, Marika, Boschloo, Gerrit   +9 more
openaire   +3 more sources

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +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