نتایج جستجو برای: zno nanocrystals
تعداد نتایج: 29687 فیلتر نتایج به سال:
Antibiotic resistance has impelled the research for new agents that can inhibit bacterial growth without showing cytotoxic effects on humans and other species. We describe the synthesis and physicochemical characterization of nanostructured ZnMgO whose antibacterial activity was compared to its pure nano-ZnO and nano-MgO counterparts. Among the three oxides, ZnO nanocrystals-with the length of ...
Conventional approaches to flexible optoelectronic devices typically require depositing the active materials on external substrates. This is mostly due to the weak bonding between individual molecules or nanocrystals in the active materials, which prevents sustaining a freestanding thin film. Herein we demonstrate an ultrathin freestanding ZnO quantum dot (QD) active layer with nanocellulose st...
First-principles study of the electronic and optical properties of ZnO and ZnS wurtzite nanoclusters
Zinc oxide (ZnO) and zinc sulphide (ZnS) nanostructures have emerged in recent years as promising candidates in the development of nanoscale electronic and photonic devices. Theoretical studies on the properties of nanosized wurtzite ZnO and ZnS are rather scarce and their electronic and optical properties are largely unknown to date. As a part of a more general theoretical effort aimed at the ...
Core-shell nanoparticles (CSNPs) with diverse chemical compositions have been attracting greater attention in recent years. However, it has been a challenge to develop CSNPs with different crystal structures due to the lattice mismatch of the nanocrystals. Here we report a rational design of core-shell heterostructure consisting of NaYF4:Yb,Tm upconversion nanoparticle (UCN) as the core and ZnO...
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