Results 71 to 80 of about 76,962 (259)
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh +12 more
wiley +1 more source
Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam +17 more
wiley +1 more source
The application of certified reference materials for clinical mass spectrometry. [PDF]
Lingxiao S +4 more
europepmc +1 more source
Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals
Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi +13 more
wiley +1 more source
Development of certified reference materials of asphalt concrete density (simulators)
The article presents materials on the development of reference materials of asphalt concrete density (simulators). The results of calculations of certified reference material metrological characteristics with the use of certified measurement procedure ...
G. A. Gubaidullin +4 more
doaj
Preparation of Certified Reference Materials of Diatomite for Chemical Composition Analysis
Diatomite is an important mineral resource, widely used in traditional industries such as food, medicine, chemical industry, and construction, as well as emerging industries such as new generation information technology, new energy, and high-end ...
Chuanbo XIA +6 more
doaj +1 more source
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash +4 more
wiley +1 more source
The article describes the history of creation of Russian reference materials (RMs), the stages of start-up and development of the Institute for Certified Reference Materials as a main producer of RMs of metallurgical production in Russia.
V. V. Stepanovskikh
doaj
Correction to: Development of certified reference materials for the determination of cadmium and acrylamide in cocoa. [PDF]
Recknagel S +7 more
europepmc +1 more source
Boosting Conversion Efficiency in Zn3P2/InP Solar Cells Via Nanoscale Junction Engineering
This study demonstrates the efficacy of selective area epitaxy (SAE) in enhancing the conversion efficiency of a Zn3P2${\rm Zn}_3{\rm P}_2$/InP heterojunction solar cell. The impact of the SAE pattern dimensions on the performance parameters is investigated. Small size opening limits Jsc because of current crowding whereas large size opening limits Voc
Raphael Lemerle +14 more
wiley +1 more source

