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2D molybdenum disulfide (MoS2) possesses excellent optoelectronic properties that make it a promising candidate for use in high‐performance photodetectors. Yet, to meet the growing demand for practical and reliable MoS2 photodetectors, the critical issue of defect introduction to the interface between the exfoliated MoS2 and the electrode metal during fabrication must be addressed, because defects...
In article number 1703176, Iman S. Roqan and co‐workers report the use of an atomic layer‐deposited TiO2 interlayer between exfoliated MoS2 and electrode to enhance the performance of MoS2 photodetectors. The TiO2 interlayer is inserted through 20 cycled‐atomic layer depositions, leading to significant enhancements in the photo‐responsivity and response‐recovery time.
High‐performance of lithium‐ion batteries (LIBs) rely largely on the scrupulous design of nanoarchitectures and smart hybridization of bespoke active materials. In this work, the pine‐needle‐like Cu–Co skeleton is reported to support highly active Li4Ti5O12 (LTO) forming Cu–Co/LTO core–branch arrays via a united hydrothermal‐atomic layer deposition (ALD) method. ALD‐formed LTO layer is uniformly anchored...
A 3D fluorine‐doped SnO2 (FTO)/FTO‐nanocrystal (NC)/TiO2 inverse opal (IO) structure is designed and fabricated as a new “host and guest” type of composite photoanode for efficient photoelectrochemical (PEC) water splitting. In this novel photoanode design, the highly conductive and porous FTO/FTO‐NC IO acts as the “host” skeleton, which provides direct pathways for faster electron transport, while...
Semiconducting 2D materials, such as SnS2, hold immense potential for many applications ranging from electronics to catalysis. However, deposition of few‐layer SnS2 films has remained a great challenge. Herein, continuous wafer‐scale 2D SnS2 films with accurately controlled thickness (2 to 10 monolayers) are realized by combining a new atomic layer deposition process with low‐temperature (250 °C)...
A fundamental understanding of the interplay between ligand‐removal kinetics and metal aggregation during the formation of platinum nanoparticles (NPs) in atomic layer deposition of Pt on TiO2 nanopowder using trimethyl(methylcyclo‐pentadienyl)platinum(IV) as the precursor and O2 as the coreactant is presented. The growth follows a pathway from single atoms to NPs as a function of the oxygen exposure...
Characterization of organic nanoparticle orientation in a polyurethane foam, which exhibits anisotropic mechanical properties, remains challenging. In article number 1803439, John F. Conley Jr., Pratheep K. Annamalai, and co‐workers briefly demonstrate the application of atomic layer deposition to enhance the contrast of nanocellulose through a coating of alumina on nanocellulose and enabling microscopic...
Analysis of cellulose nanocrystals (CNCs) at low volume fractions in polymer nanocomposites through conventional electron microscopy still remains a challenge due to insufficient contrast between CNCs and organic polymer matrices. Herein, a methodology for enhancing the contrast of CNC, through atomic layer deposition (ALD) of alumina (Al2O3) on CNCs is demonstrated. The metal oxide coated CNC allows...
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