Results 51 to 60 of about 273 (152)

Indium‐Free Recombination Layer for Perovskite‐Based Multijunction‐Solar‐Cells‐ with Improved Performance Using Sputtered Zinc Tin Oxide

Small, Volume 21, Issue 50, December 17, 2025.
In two‐terminal multijunction solar cells, the subcells are connected in series through recombination layers whose electro‐optical properties directly influence all photovoltaic parameters. Here, we introduce low‐temperature sputtered zinc tin oxide (ZTO) as an indium‐free recombination layer for perovskite‐based multijunction devices.
Maryamsadat Heydarian, Georgios Loukeris, Martin Bivour, Christoph Messmer, Minasadat Heydarian, Oliver Fischer, Clemens Baretzky, Alexander J. Bett, Estelle Gevais, Muhammad Fareed U Din Masood, Sofiia Kosar, Stefaan De Wolf, Florian Schindler, Martin C. Schubert, Markus Kohlstädt, Juliane Borchert, Uli Würfel, Patricia S. C. Schulze, Andreas W. Bett, Stefan W. Glunz   +19 more
wiley   +1 more source

Size effect of nickel-based single crystal superalloy revealed by nanoindentation with low strain rates

Journal of Materials Research and Technology
Size effect of the nickel-based single crystal superalloy DD6 is investigated in this study by performing nanoindentation experiments and finite element (FE) simulations by emphasizing the strain rate effect.
Xu Long, Ziyi Shen, Jiao Li, Ruipeng Dong, Ming Liu, Yutai Su, Chuantong Chen   +6 more
doaj   +1 more source

On the Load Dependence of Micro-Hardness Measurements: Analysis of Data by Different Models and Evaluation of Measurement Errors

Archives of Metallurgy and Materials, 2016
The influence of applied loads between 0.09807 N and 0.9807 N on measured values of micro-hardness was evaluated by Meyer’s index n, proportional specimen resistance model (PSR) and Hays – Kendall methods, Total Dispersion Zone and Analysis of Variance ...
Petrík J.
doaj   +1 more source

Overcoming Material Incompatibility via 2D Free‐Surface Engineering

Advanced Materials, Volume 37, Issue 47, November 27, 2025.
A scalable post‐epitaxial strategy introduces a sub‐nanometric 2D free surface (2DFS) at the heterointerface, effectively decoupling lattice‐mismatched layers. This process significantly reduces strain‐driven defects and dislocation density in Ge/Si heterostructures. The resulting bulk‐like material quality, validated by advanced microscopy and optical
Youcef A. Bioud, Meriem Bouchilaoun, Waldemar Schreiber, Redouane Amrar, Gilles Patriarche, Tao Ma, Jens Ohlmann, Ali Soltani, David Lackner, Stefan Janz   +9 more
wiley   +1 more source

Review of indentation size effect in crystalline materials: Progress, challenges and opportunities

Journal of Materials Research and Technology
Nanoindentation has been widely utilized for measuring mechanical properties at small scales over the past three decades. Indentation size effect (ISE) is a crucial phenomenon in nanoindentation testing of crystalline materials, which is usually ...
Ziyi Shen, Yutai Su, Zhiyuan Liang, Xu Long   +3 more
doaj   +1 more source

Influence of cobalt addition and calcination temperature on the physical properties of BaFe12O19 hexaferrites nanoparticles

Materials Research Express, 2020
Nano-scale particles of pure Barium hexaferrite ‘BaFe _12 O _19 ’ and Cobalt added Barium hexaferrite ‘Co _x BaFe _12 O _19 ’, with x = 0.04, 0.06 and 0.1 wt%, were successfully synthesized by the chemical co-precipitation method.
M Rekaby, H Shehabi, R Awad
doaj   +1 more source

Geophysical Prospecting for the Detection of Buried and Shallow Submerged Archaeological Sites of Roman Period in the Lagoon of Venice (Italy)

Archaeological Prospection, Volume 32, Issue 4, Page 1005-1019, October/December 2025.
ABSTRACT We present a study that combines several marine geophysical techniques to detect and map archaeological sites from the Roman period in the shallow waters of the Venice Lagoon, Italy. We employed marine electrical resistivity tomography (M‐ERT), a drone‐based unmanned surface vehicle (USV) multibeam sonar, and subbottom profiler technology to ...
Carlo Beltrame, Elisa Costa, Paolo Mozzi, Alberto Carrera, Jacopo Boaga   +4 more
wiley   +1 more source

Defect‐driven innovations in photocatalysts: Pathways to enhanced photocatalytic applications

InfoMat, Volume 7, Issue 9, September 2025.
Different types of defects were comprehensively studied. Heterojunction and interface defects were deeply highlighted. Advantages of defect engineering have been discussed in detail. Defect engineering presents new opportunities for cost‐effective photocatalysts.
Hamid Ali, Zeeshan Ajmal, Abdullah Yahya Abdullah Alzahrani, Mohammed H. Al Mughram, Ahmed M. Abu‐Dief, Rawan Al‐Faze, Hassan M. A. Hassan, Saedah R. Al‐Mhyawi, Yas Al‐Hadeethi, Yasin Orooji, Sheng‐Rong Guo, Asif Hayat   +11 more
wiley   +1 more source

Hydrological Analysis and Impacts of Natural Flood Management Strategies: A Systematic Review

Journal of Flood Risk Management, Volume 18, Issue 3, September 2025.
ABSTRACT Natural flood management strategies (NFMs) encompass a variety of measures implemented across catchments to mitigate flood risks while providing multiple benefits. In recent years, NFMs have gained increasing attention from researchers and policymakers.
Mehdi Bagheri‐Gavkosh, Diego Panici, Alan Puttock, Tom Dauben, Richard E. Brazier   +4 more
wiley   +1 more source

Tuning Self‐Assembly of Hole‐Selective Monolayers for Reproducible Perovskite/Silicon Tandem Solar Cells

Small Methods, Volume 9, Issue 7, July 19, 2025.
This study investigates how annealing temperature affects the formation of hole‐selective self‐assembled monolayers. Advanced in situ X‐ray photoelectron spectroscopy uncovers that increasing the annealing temperature beyond the conventional 100°C reduces the thickness of 2PACz from a multilayer stack of ∼5 nm to a monolayer at 150°C and improves its ...
Oussama Er‐Raji, Stefan Lange, Carl Eric Hartwig, Adi Prasetio, Martin Bivour, Martin Hermle, Marko Turek, Stefaan De Wolf, Stefan W. Glunz, Juliane Borchert, Patricia S. C. Schulze   +10 more
wiley   +1 more source