نتایج جستجو برای: cu doped zns

تعداد نتایج: 110881  

Journal: :Physical chemistry chemical physics : PCCP 2017
Daniel Martín-Yerga Agustín Costa-García

Quantum dots (QDs) have special optical, surface, and electronic properties that make them useful for electrochemical applications. In this work, the electrochemical behavior of copper in ammonia medium is described using bare screen-printed carbon electrodes and the same modified with CdSe/ZnS QDs. At the bare electrodes, the electrogenerated Cu(i) and Cu(0) species are oxidized by dissolved o...

2013
A. NITHYA

The antibacterial and antibiofilm activity of chemically synthesized pure and Cu doped ZnO nanoparticles against marine biofilm forming bacteria has been reported for the first time. The synthesized nanoparticles were characterized using PXRD, FTIR and SEM which confirmed the formation of phase pure nanostructured zinc oxides. The antibacterial and antibiofilm activities of the synthesized nano...

Journal: :Optics express 2012
Hicham El Hamzaoui Youcef Ouerdane Laurent Bigot Géraud Bouwmans Bruno Capoen Aziz Boukenter Sylvain Girard Mohamed Bouazaoui

We report the fabrication and characterization of a photonic crystal fiber (PCF) having a sol-gel core doped with ionic copper. Optical measurements demonstrate that the ionic copper is preserved in the silica glass all along the preparation steps up to fiber drawing. The photoluminescence results clearly show that such an ionic copper-doped fiber constitutes a potential candidate for UV-C (200...

2012
Li Cao Sheng-Tao Yang Xin Wang Pengju G. Luo Jia-Hui Liu Sushant Sahu Yamin Liu Ya-Ping Sun

Carbon-based "quantum" dots or carbon dots are surface-functionalized small carbon nanoparticles. For bright fluorescence emissions, the carbon nanoparticles may be surface-doped with an inorganic salt and then the same organic functionalization. In this study, carbon dots without and with the ZnS doping were prepared, followed by gel-column fractionation to harvest dots of 40% and 60% in fluor...

Journal: :Dalton transactions 2015
Siddhartha Sankar Boxi Santanu Paria

Arsenic poisoning from drinking water has been an important global issue in recent years. Because of the high level toxicity of arsenic to human health, an easy, inexpensive, low level and highly selective detection technique is of great importance to take any early precautions. This study reports the synthesis of Ag doped hollow CdS/ZnS bi-layer (Ag-h-CdS/ZnS) nanoparticles for the easy fluoro...

Journal: :Journal of the American Chemical Society 2008
Daocheng Pan Lijia An Zhongming Sun William Hou Yang Yang Zhengzhong Yang Yunfeng Lu

Nearly monodisperse Cu-In-S ternary nanocrystals with tunable composition, crystalline structure, and size were synthesized by a hot-injection method using mixed generic precursors. Such ternary nanocrystals with zincblende and wurtzite structure were reported for the first time. This work correlates the crystalline structure of the binary ZnS nanoparticles with those of ternary Cu-In-S nanocry...

2014
Devulapalli Amaranatha Reddy Deok Hyeon Kim Seuk Joo Rhee Bo Wha Lee Chunli Liu

Mg-doped ZnS hierarchical spheres have been synthesized via hydrothermal method using mixed solvents of ethylenediamine and DI water without any surface-active agent. The surface morphology and microstructure studies revealed that the hierarchical spheres were consisted of many well-aligned nanosheets with width 10 nm and length about 50 ~ 100 nm. X-Ray diffraction results show that the ZnS:Mg ...

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