Results 41 to 50 of about 1,488 (236)

Accelerated discovery of a large family of quaternary chalcogenides with very low lattice thermal conductivity

open access: yesnpj Computational Materials, 2021
The development of efficient thermal energy management devices such as thermoelectrics and barrier coatings often relies on compounds having low lattice thermal conductivity (κ l ).
Koushik Pal   +6 more
doaj   +1 more source

Far‐Infrared Hyperbolic Phonon–Polaritons in Zirconium Disulfide

open access: yesAdvanced Materials, EarlyView.
An unpatterned ZrS2${\rm ZrS}_2$ flake, coupled to far‐field infrared light by metal nanoribbons, reveals hyperbolic phonon polaritons with multiple higher‐order branches and effective refractive indices up to 223. This resonator‐assisted approach establishes ZrS2${\rm ZrS}_2$ as a compact van der Waals platform for deeply subwavelength far‐infrared ...
Subhodip Saha   +7 more
wiley   +1 more source

Polypyrrole-based chalcogen/chalcogenide nano-composites and their energy applications: A review

open access: yesNext Materials
Substantial research and development in the field of conducting polymers and their composites has opened up new avenues in the field of energy applications.
Aneet Abhishek   +2 more
doaj   +1 more source

Bio-inspired silver selenide nano-chalcogens using aqueous extract of Melilotus officinalis with biological activities

open access: yesBioresources and Bioprocessing, 2021
For the first time, an aqueous extract of Melilotus officinalis was used to synthesize bimetallic silver selenide chalcogenide nanostructures (Ag2Se-NCs).
Seyedeh Zahra Mirzaei   +5 more
doaj   +1 more source

CVD Grown Hybrid MoSe2–WSe2 Lateral/Vertical Heterostructures With Strong Interlayer Exciton Emission

open access: yesAdvanced Materials, EarlyView.
A scalable bottom‐up CVD methodology, based on liquid transition metal salt precursors, is presented for the controlled growth of two high‐quality MoSe2–WSe2 heterostructures (HSs): purely lateral (HS I) and hybrid lateral/vertical (HS II), by simply adjusting precursor concentration.
Md Tarik Hossain   +16 more
wiley   +1 more source

Escaping the Scaling Relationships in Oxygen Reduction Catalysis: Implications for PEM Fuel Cells

open access: yesAdvanced Materials, EarlyView.
Escaping the scaling relationships of the oxygen reduction reaction is vital for hydrogen fuel cells. This outlook examines how interfacial heterogeneity, spanning the subsurface lattice, chemisorption layer, and near‐interface solvation volume, mechanistically decouples intermediate binding energetics.
Muhammad Bilal Wazir   +2 more
wiley   +1 more source

The Chalcogen (S, Se, and Te) Doping Effects on the Structural and Electronic Properties of Anatase (101) TiO2 Thin Surface Layers: DFT Study

open access: yesInternational Journal of Photoenergy
Doping TiO2 with chalcogen (S, Se, and Te) decreases its band gap and enhances the photocatalytic activity. However, doping TiO2 could create mid-gap states that trap the electrons and reduce the photocatalytic activity.
Ihsan Erikat   +3 more
doaj   +1 more source

Universal Strategy for Phase‐Selective Synthesis of Monolayer TMDs via Colloidal Chemistry

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Colloidal synthesis of monolayer transition metal dichalcogenides (TMDs) remains challenging regarding uniform size, thickness, and crystalline phase. While significant progress has been made in phase engineering, a unified chemical strategy for on‐demand selection of both 2H and 1T′ phases across multiple TMD systems within a single chemical ...
Hoon Ju Lee   +5 more
wiley   +1 more source

Radiation‐Matter Interaction in Chemical Vapor Deposition‐Grown Two‐Dimensional Tungsten Disulfide

open access: yesAdvanced Materials Interfaces, EarlyView.
Gamma irradiation tunes the magnetic properties of CVD‐grown WS2 material. Moderate irradiation doses induce low‐temperature ferromagnetic‐like behavior, whereas higher doses suppress the magnetic response because of increased defect formation. These findings provide insight into defect‐mediated magnetism in 2D TMDs and could be relevant to future ...
Mongur Hossain   +3 more
wiley   +1 more source

Applications of Transition Metal Oxides and Chalcogenides and their Composites in Water Treatment: a review

open access: yesEnvironmental Advances, 2023
High population growth, industrialization, precipitous urban settlement, and poor government policies in some circles have increased resource consumption and various environmental activities that promote water pollution.
Enyioma C. Okpara   +3 more
doaj   +1 more source

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