نتایج جستجو برای: silicon oxide nanoparticles

تعداد نتایج: 340429  

2015
Zhongzhou Yang Jing Chen Runzhi Dou Xiang Gao Chuanbin Mao Li Wang Huang-Tsung Chang

In this study, the phytotoxicity of seven metal oxide nanoparticles(NPs)-titanium dioxide (nTiO₂), silicon dioxide (nSiO₂), cerium dioxide (nCeO₂), magnetite (nFe₃O₄), aluminum oxide (nAl₂O₃), zinc oxide (nZnO) and copper oxide (nCuO)-was assessed on two agriculturally significant crop plants (maize and rice). The results showed that seed germination was not affected by any of the seven metal o...

2016
Wen-Jeng Ho Ruei-Siang Sue Jian-Cheng Lin Hong-Jang Syu Ching-Fuh Lin

This paper reports impressive improvements in the optical and electrical performance of metal-oxide-semiconductor (MOS)-structure silicon solar cells through the incorporation of plasmonic indium nanoparticles (In-NPs) and an indium-tin-oxide (ITO) electrode with periodic holes (perforations) under applied bias voltage. Samples were prepared using a plain ITO electrode or perforated ITO electro...

2003
Herbert Wormeester

The thin island film theory developed by Bedeaux and Vlieger @Optical Properties of Surface ~Imperial College Press ~2002!#, is used to unambiguously analyze spectroscopic ellipsometry spectra of thin layers of nanocolloidal gold particles on silicon substrates covered by a natural oxide layer, for coverages up to 35%. Due to the absence of isotropy in three dimensions, standard effective mediu...

2015
Lan Yin Carl Bozler Daniel V. Harburg Fiorenzo Omenetto John A. Rogers

Articles you may be interested in Fully complementary metal-oxide-semiconductor compatible nanoplasmonic slot waveguides for silicon electronic photonic integrated circuits Appl. Compact models considering incomplete voltage swing in complementary metal oxide semiconductor circuits at ultralow voltages: A circuit perspective on limits of switching energy Monolithically integrated low-loss silic...

2011
Sarmishtha Ghoshal Abul AM Ansar Sufi O Raja Arpita Jana Nil R Bandyopadhyay Anjan K Dasgupta Mallar Ray

A uniformly distributed array of micro test tubes and microbeakers is formed on a p-type silicon substrate with tunable cross-section and distance of separation by anodic etching of the silicon wafer in N, N-dimethylformamide and hydrofluoric acid, which essentially leads to the formation of macroporous silicon templates. A reasonable control over the dimensions of the structures could be achie...

Journal: :Optics express 2010
R K Harrison Adela Ben-Yakar

We present experimental results for the plasmonic laser ablation of silicon with nanoscale features as small as 22 x 66 nm using single near-infrared, femtosecond laser pulses incident on gold nanorods. Near the ablation threshold, these features are photo-imprints of gold nanorod particles positioned on the surface of the silicon and have feature sizes similar to the nanorods. The single rod-s...

Journal: :Nanotechnology 2009
Yongho Choi Jason L Johnson Ant Ural

We demonstrate experimentally a simple and efficient approach for silicon oxide nanowire growth, by implanting Fe(+) ions into thermally grown SiO(2) layers on Si wafers and subsequently annealing in argon and hydrogen to nucleate the nanowires. We study the effect of implantation dose and energy, growth temperature, H(2) gas flow, and growth time on the silicon oxide nanowire growth. We find t...

2016
Elham Isaei Shahla Mansouri Fereshteh Mohammadi Sadegh Taheritarigh Zohreh Mohammadi

BACKGROUND Antibiotic resistant bacteria can be considered as a main problem in infection management. Zinc oxide nanoparticles (ZnO NPs), individually or in combination with antibiotics, can be considered as good candidates for struggling against drug resistant bacteria. METHODS In this study, Zinc oxide nanoparticles were synthesized using sol-gel method in low temperature as a cost effectiv...

Journal: :Journal of Physics: Conference Series 2021

Abstract Annotation. Nanopowders of aluminum oxide silicon and iron with silver coating were produces by the radiation-chemical method. The dimensions nanoparticles 50 to 80 nm, area can be changed from 2-3%, up 40%. Was carried out validation antibacterial properties against E.coli staphylococcus. Were estimated photocatalytic nanopowders, which showed applications perspective as a agent. Cyto...

Journal: :Chemical communications 2014
Noor Aniza Harun Benjamin R Horrocks David A Fulton

We report an approach to enhance simultaneously luminescence and SERS signals with a single excitation wavelength by co-encapsulating silicon quantum dots and Au-Ag alloy nanoparticles encoded with Raman reporter molecules inside polymeric nanoparticles. The SERS-luminescence enhancement exploits the large Stokes shift of silicon quantum dots, which allows 'room' for the display of a Raman spec...

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