Results 91 to 100 of about 30,748 (322)

Trapped charge driven degradation of perovskite solar cells

, 2016
Perovskite solar cells have shown fast deterioration during actual operation even with encapsulation, but its mechanism has been elusive. We found the fundamental mechanism for irreversible degradation of perovskite materials in which trapped charges ...
Ahn, Namyoung, Byun, Junseop, Choi, Mansoo, Jang, Min Seok, Kwak, Kwisung, Lee, Byung Yang, Lee, Jong-Kwon, Pikhitsa, Peter V., Yoon, Heetae   +8 more
core   +2 more sources

Spatially Resolved High Voltage Kelvin Probe Force Microscopy: A Novel Avenue for Examining Electrical Phenomena at Nanoscale [PDF]

Advanced Physics Research
Kelvin probe force microscopy (KPFM) is a well‐established scanning probe technique, used to measure surface potential accurately; it has found extensive use in the study of a range of materials phenomena.
C. J. McCluskey, Niyorjyoti Sharma, J. R. Maguire, Serene Pauly, Andrew Rogers, TJ Lindsay, Kristina M. Holsgrove, Brian J. Rodriguez, N. Soin, J. M. Gregg, R. G. McQuaid, Amit Kumar   +11 more
semanticscholar   +1 more source

CdTe Quantum Dots Encapsulated on Perovskite Grains Enable Highly Efficient and Stable Perovskite Solar Cells

Advanced Materials, EarlyView.
Present work demonstrates an efficient laser‐assisted localized interfacial engineering strategy that achieves epitaxial‐grade atomic coherence in spatially defined p‐n microscopic heterointerfaces, via precisely embedding p‐type CdTe QDs into an n‐type perovskite matrix, which concurrently establishes dual optimization of microscale carrier management
Wenhao Zhao, Deyou Lin, Riming Sun, Zhiyu Fang, Pengfei Guo, Yadong Xu, Hongqiang Wang, Feng Yan   +7 more
wiley   +1 more source

Investigation of Inhibition Effect of Ketoconazole on Mild Steel Corrosion in Hydrochloric Acid

International Journal of Electrochemical Science, 2018
Inhibition behavior of a common drug Ketoconazole with IUPAC name as (1-[4-(4-{[(2R,4S)-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazin-1-yl]ethan-1-one) was investigated for mild steel corrosion using weight ...
Haolong Yang, Ming Zhang, Ambrish Singh
doaj   +1 more source

Scalable and Multifunctional PAN‐MXene Composite Fibers for Thermal Management, Photothermal Conversion, Energy Harvesting, and Sensing for Wearable Applications

Advanced Materials, EarlyView.
Electrospun PAN‐MXene nanofibers and yarns integrate enhanced thermal conductivity, photothermal conversion, and triboelectric energy harvesting within a flexible architecture. Interconnected MXene networks promote efficient phonon transport, while their surface chemistry strengthens tribo‐negative behavior, enabling a high power density of 432.7 mW m ...
Ahmadreza Moradi, Piotr K. Szewczyk, Urszula Stachewicz   +2 more
wiley   +1 more source

Nanostructure and ferroelectric properties of nanoscale BaTiO3/SrRuO3/MgO(001) films

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
High-quality ferroelectric BaTiO3/SrRuO3/MgO(001) heterostructures with BaTiO3 film thicknesses ranging from 36 to 360 nm were synthesized using high-frequency cathode sputtering in an oxygen atmosphere.
D.A. Kiselev, D.V. Stryukov, A.V. Pavlenko   +2 more
doaj   +1 more source

Bio‐Inspired Hierarchical Nanoreactor With Hetero‐Coordinated Fe–P–Co Bridges for Whole‐Pathway‐Regulated Electrocatalytic Oxygen Reduction

Advanced Materials, EarlyView.
A bioinspired Co‐doped Fe2P on N‐doped carbon with a hierarchical eucalyptus‐like nanoarchitecture is engineered to regulate oxygen across the entire electrochemical pathway, achieving a half‐wave potential of 0.938 V vs. RHE, sustaining 373 h of discharge in Al‐air batteries, and delivering an energy density of 3487 Wh/kg.
Qiaoling Xu, Lei Zhang, Xiayu Li, Weihang Xu, Linyi Ren, Mai Xu, Yingtang Zhou, Hermenegildo Garcia   +7 more
wiley   +1 more source

Pulsed Force Kelvin Probe Force Microscopy—A New Type of Kelvin Probe Force Microscopy under Ambient Conditions

The journal of physical chemistry. C, Nanomaterials and interfaces
Kelvin probe force microscopy (KPFM) is an increasingly popular scanning probe microscopy technique used for nanoscale imaging of surface potential for various materials, such as metals, semiconductors, biological samples, and photovoltaics, to reveal ...
Amirhossein Zahmatkeshsaredorahi, D. Jakob, Xiaoji G. Xu   +2 more
semanticscholar   +1 more source

High speed mapping of surface charge dynamics via Spiral Scanning Kelvin Probe Force Microscopy

, 2023
Abstract Understanding local dynamic charge processes is essential for developing advanced materials and devices, from batteries and microelectronics to medicine and biology. Continued progress relies on the ability to map electronic and ionic transport phenomena across different time and length scales, encompassing the intrinsic ...
Martí Checa, Kyle Kelley, Changhyo Sun, Rama Vasudevan, Maxim Ziatdinov, Ilia Ivanov, Seok Joon Yun, Kai Xiao, Alp SEHIRLIOGLU, Yunseok Kim, Pankaj Sharma, Neus Domingo, Stephen Jesse, Liam Collins   +13 more
openaire   +1 more source

Laser‐Synthesized Amorphous PdSe2‐x Nanoparticles: A Defect‐Rich Platform for High‐Efficiency SERS, Photocatalysis, and Photothermal Conversion

Advanced Materials Interfaces, EarlyView.
Using femtosecond ablation, we show that an ordered, stoichiometric crystalline PdSe2 target can be controllably converted into a stable, disordered, non‐stoichiometric, and highly functional amorphous nanomaterial, PdSe2−x${\rm PdSe}_{2-x}$. The obtained nanoparticles offer significant advantages over conventional planar plasmon‐free substrates due to
Andrei Ushkov, Nadezhda Belozerova, Dmitriy Dyubo, Ilya Martynov, Alexander Syuy, Daniil Tselikov, Georgy Ermolaev, Sergey V. Bazhenov, Roman I. Romanov, Ivan Kruglov, Anton A. Popov, Alexander Chernov, Alexey D. Bolshakov, Sergey Novikov, Andrey A. Vyshnevyy, Aleksey Arsenin, Andrei V. Kabashin, Gleb I. Tselikov, Valentyn Volkov   +18 more
wiley   +1 more source