Results 71 to 80 of about 76,962 (259)

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
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

open access: yesAdvanced Functional Materials, EarlyView.
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]

open access: yesJ Clin Lab Anal, 2022
Lingxiao S   +4 more
europepmc   +1 more source

Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals

open access: yesAdvanced Functional Materials, EarlyView.
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)

open access: yesСтандартные образцы, 2017
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

open access: yesYankuang ceshi
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

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

open access: yesAdvanced Functional Materials, EarlyView.
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

REFERENCE MATERIALS INSTITUTE DEVELOPER AND PRODUCER OF REFERENCE MATERIALS OF RAW AND METALLURGICAL PRODUCTION MATERIALS

open access: yesСтандартные образцы, 2017
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]

open access: yesAnal Bioanal Chem, 2021
Recknagel S   +7 more
europepmc   +1 more source

Boosting Conversion Efficiency in Zn3P2/InP Solar Cells Via Nanoscale Junction Engineering

open access: yesAdvanced Functional Materials, EarlyView.
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

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