نتایج جستجو برای: doped zns

تعداد نتایج: 50881  

2012
A. Behjat M. Neghabi

The effects of ZnS/Metal/ZnS multilayer anodes, including ZnS/Au/ZnS (ZAuZ), ZnS/Ag/ZnS (ZAgZ) and ZnS/Cu/ZnS (ZCuZ) on device performance in organic light emitting diodes based on rubrene were investigated systematically. The device with ZAuZ as anode gave an improved performance comparable with ITO based devices. A low driving voltage of 5.61 V and a high luminance of 1836 cd/m were obtained ...

2015
Jun Lee Chang-Soo Han

We report a highly bright and stable aqueous dispersion of CuInS2/ZnS (CIS/ZnS) nanocrystals (NCs) using surfactant-assisted microemulsion and cold treatment. CIS/ZnS NCs were facilely synthesized via a stepwise, consecutive hybrid flow reactor approach. To stabilize the optical properties of hydrophobic CIS/ZnS NCs, cetyltrimethylammonium bromide (CTAB) was chosen as a matrix for aqueous phase...

2012
Petr Praus Ondřej Kozák

O nanocompósito de partículas de ZnS estabilizadas por íons cetiltrimetilamônio (ZnS-CTA) e montmorilonita (ZnS−CTA−MMT) foi preparado e usado como catalisador na fotodecomposição de fenol sob radiação UV de uma lâmpada de Hg de pressão média. A quantidade de ZnS em ZnS−CTA−MMT foi aproximadamente 6 wt.%. Para comparação, a fotodecomposição foi também realizada com ZnS−CTA, montmorilonita e sem...

2011
Edin Nuhiji François G. Amar Hongxia Wang Nolene Byrne Tich-Lam Nguyen Tong Lin

Emission spectra from microdroplets doped with CdSe/ZnS quantum dots (QDs) have been recorded on superhydrophobic coatings (water contact angle > 170 ). Whispering gallery modes (WGMs) with Q-factors as high as 4.0 10 were discernible. Excitation parameters for optimal microdroplet WGM response illumination and acquisition are also presented. Fluorescent QDs provide a robust WGM reporting mecha...

2013
Ken-ichi Tanaka Takeshi Nanba Tomoyuki Furubayashi Yasuko Noda Luther James Willmore Akitane Mori

Zonisamide (ZNS), a commonly used anticonvulsant, scavenged hydroxyl radicals at a clinically relevant concentration. Reactants of ZNS with hydrogen peroxide and with hydrogen peroxide plus UV irradiation, yielding hydroxyl radicals, were analyzed by the LC/MS technique. Many small fragments were found in the both reactions, suggesting that ZNS was decomposed not only by hydroxyl radicals but a...

Journal: :ACS applied nano materials 2023

The synthesis of various transition-metal-doped InP quantum dots (QDs), such as copper, manganese, and silver, for enhanced optoelectronic properties has been reported to date. Herein, we introduce ruthenium (Ru) doping into QDs. After Ru doping, QDs showed a significant red shift up 325 meV due the introduction mid-gap states. optimization studies ZnS shell formation on Ru-doped core led high ...

Journal: :Journal of Luminescence 2021

The structural, morphological and optical properties of pure Ca-doped zinc sulfide (ZnS:Ca) nanoparticles (NPs) prepared by hydrothermal method at different percentages Ca are reported herein. resulting NPs were characterized X-ray diffraction analysis (XRD), Raman scattering, scanning electron microscopy (SEM), transmission (TEM) photoluminescence (PL) spectroscopy. XRD patterns confirmed the ...

2015
Brian J. F. Swift Franҫois Baneyx

Despite their importance in nano-environmental health and safety, interactions between engineered nanomaterials and microbial life remain poorly characterized. Here, we used the model organism E. coli to study the penetration requirements, subcellular localization, induction of stress responses, and long-term fate of luminescent Mn-doped ZnS nanocrystals fabricated under "green" processing cond...

2017
Mohammad S. Yazdanparast William R. Jeffries Eric R. Gray Emily J. McLaurin

Biological thiols are antioxidants essential for the prevention of disease. For example, low levels of the tripeptide glutathione are associated with heart disease, cancer, and dementia. Mn2+-doped wide bandgap semiconductor nanocrystals exhibit luminescence and magnetic properties that make them attractive for bimodal imaging. We found that these nanocrystals and silica-encapsulated nanopartic...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
Wei-Ta Chen Yung-Jung Hsu

Core-satellite ZnS-Au nanoassemblies, in which each of the ZnS nanospheres was surrounded by a few Au nanoparticles, have been successfully prepared with a facile L-cysteine-assisted hydrothermal approach. The density of Au nanoparticles encircling each ZnS nanosphere can be readily controlled through suitably modulating the concentration of Au added. Because of the difference in band structure...

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