CdS Nanoparticles.

CdS nanoparticles in colloidal solution using metallorganic route and under UV radiation.

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Comment by Dr.Claudio Gutiérrez on August 5, 2012 at 5:27pm

Luminescence is a consecuense of electronic transitions in semiconductor nanoparticles. Electrons localized in chemical bonds are released when absorb higher energy than the corresponding bond energy. Once released, electrons are free in the crystalline structure, certain time interval until a broken chemical bond catch it. Thinking in energy terms, electrons jump to higher level and after decay, returning part of the absorbed energy in light. In quantum dots, similar process occur, but slighly more complex. The emission of these CdS particles is due to electronic transitions from chemical bonds to insaturated bonds localized on nanoparticle surface. Due to crystal size, light emitted is visible, because you needed more energy to realise the electrons compared to micro or macroscopic CdS, and then you get yellow tonality.

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Comment by Nikhil Bhardwaj on August 4, 2012 at 7:26pm
Can anyone pleasa tell me that why is it so much gliteering?????

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Pd/Ni Synergestic Activity for Hydrogen Oxidation Reaction in Alkaline Conditions

The potential use of cellophane test strips for the quick determination of food colours

pH and CO2 Sensing by Curcumin-Coloured Cellophane Test Strip

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Directed Deposition of Nickel Nanoparticles Using Self-Assembled Organic Template,

Organometallic deposition of ultrasmooth nanoscale Ni film,

Zigzag-shaped nickel nanowires via organometallic template-free route

Surface analytical characterization of passive iron surface modified by alkyl-phosphonic acid layers

Atomic Force Microscopy Studies of Alkyl-Phosphonate SAMs on Mica

Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films

Surface modification of passive iron by alkylphosphonic acid layers

Formation and structure of alkylphosphonic acid layers on passive iron

Structure of the nonionic surfactant triethoxy monooctylether C8E3 adsorbed at the free water surface, as seen from surface tension measurements and Monte Carlo simulations

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