Luminescence from Surfactant-Free ZnO Quantum Dots
Prepared by Laser Ablation in Liquid
R. S. Ajimsha, G. Anoop,
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Arun Aravind, and M. K. Jayaraj
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Optoelectronic Devices Laboratory, Department of Physics, Cochin University of Science and Technology,
Kochi-682 022, Kerala, India
Highly transparent, luminescent and biocompatible ZnO quantum dots were prepared in water, methanol, and ethanol using
liquid-phase pulsed laser ablation technique without using any surfactant. Transmission electron microscopy analysis confirmed
the formation ....etc

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Quantum Wells, Quantum Wire, and Quantum Dots

I'd like to explore the material known as Wellstone. There are some interesting aspects to this material, and it is written about in Hacking Matter by Will McCarthy. It is not necessarily nanotechnology, so much as it is quantum level materials and bio-molecular control over nano sized or meso-sized particles.
We will return to the world of Nanotechnology and DNA computing shortly, for now - let's talk about Wellstone.

Definitions from the book:
Qua ....etc

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This is the first time I am hearing about quantum dots. I gathered some valuable information about it by browsing on the internet. They are widely used in solid-state quantum computation. Highly sensitive cellular imaging is another area which uses quantum dots. They are also extensively used for real-time tracking of molecules and cells over prolonged periods of time. A lot of research has been going on in relation to the new areas in which they can be used. I am sure that future belongs to quantum dots. ....etc

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I am manufacturing zno active 69%,now I want to improve purity upto 99% ,pls
advise,.:huh: ....etc

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semi conductor quantum dots ....etc

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my project name is synthasis and characterisation of dopep and undoped zno thin film by sol gel spin coating method.

i want to prepare zno solution by natural things like vegetables, plant leave or fruits etc. i dont want to use chemicaks to prepare zno thin film . ....etc

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Quantum dots known as nanocrystals is a semiconductor whose excitons are confined in all three spatial dimensions. As a result, they have properties that are between those of bulk semiconductors and those of discrete molecules which are crystals composed of periodic groups of II-VI, II-V, or IV-VI materials. Semiconductors are a cornerstone of the modern electronics industry and make possible applications such as the Light Emitting Diode and personal computer
see more on http://en.wikipediawiki/Quantum_dot
http://evidenttechquantum-dots- ....etc

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Abstract
A facile photochemical method was used to synthesize Ag nanoparticle (Ag NP) embedded-ZnO nanorods in this article. The as-synthesized Ag NP embedded-ZnO nanorod samples were characterized systematically by TEM, XPS, DSC, XRD and SEM. The characterization results confirmed that Ag NPs had been embedded in ZnO nanorods. The gas-sensing properties of Ag NP embedded-ZnO nanorods were also investigated. While the performances of the sensors can be enhanced by embedding Ag NPs onto the surfaces of ZnO nanorods, the response of Ag NP embedd ....etc

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Zankar is a pioneer company in making audio visual aids since 1985. Zankar Educational CDs is the only name you can rely upon. Simple presentation in effective form is our speciality. To maintain our professionalism, we are similarly keen about making our products very user friendly & simple to understand.. Zankar's product on any counter doesn't need special efforts to get sold. Once our product is owned by a customer, It is automatically well known in his social, and personal circle . We assure the best q ....etc

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please send the procedure preparation of ZnO nano particles by sol gel method
Thanking you ....etc

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