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Nanostuff

For people involved in nanomaterials research and all other types of nanostuff; solar, nanoelectronics, nanoethics, quantum communications and amazing stuff.

Members: 36
Latest Activity: Aug 30, 2014

Discussion Forum

Ag-NPs

Started by Peter Fojan. Last reply by Peter Fojan Nov 24, 2010. 2 Replies

SILVER NANOPARTICLES

Started by GAYATHRI. Last reply by Diana Raie Nov 24, 2010. 4 Replies

Green NanoTech

Started by Diana Raie Nov 24, 2010. 0 Replies

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Comment by N R Karthikeyan on June 5, 2009 at 6:27am
wow.... thats a wonderful explanation... thanks.... bt the point.. am i material engineer.... to my understanding... u mean to say if we can somehow tune down the energy requirement to eject photons..... probably the efficiency may get increase rite ?...

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Comment by Kiran Kumar V S on June 5, 2009 at 6:13am
@ Karthikeyan

Solar Power Plants work on either Photoelectric effect i.e Photovoltaic cell or convert water into steam and then into electricity.

In photovoltaic cells Not all the solar energy is directly converted into power as some of the energy is used in ejecting photo electrons..and the energy used to eject photo electrons is property of the material used i.e work function of the material. Most of the photovoltaic cells are made of silicon which has a work function of 4.52 ev. Hence 4.52 ev amount of the energy is used to eject electrons itself and the rest is used by the electrons as kinetic energy, which generates current. But electrons tend to loose some of its kinetic energy by collisions. Hence the efficiency is very less.

When it comes to converting solar energy into steam, and then into electricity, it works like the steam engine of the olden days.....and you imagine the rest... ;-)

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Comment by N R Karthikeyan on June 5, 2009 at 5:13am
Hi everyone

What is the main reason for reduced efficiency in solar power plants ?

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Comment by K.BALA BHASKAR on January 2, 2009 at 6:38pm
researching the organic solar cell is the promising technologyfor the future and humans can also be the primary producers of food or energy by this technology and half the the global energy needs can be fulfilled by this idea.

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Comment by Tunde Kovacs on October 26, 2008 at 9:35pm
The people are curious of everything and the researchers are the most curious people ...:-)
 
 
 

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Welcome - about us

Welcome! Nanopaprika was cooked up by Hungarian chemistry PhD student in 2007. The main idea was to create something more personal than the other nano networks already on the Internet. Community is open to everyone from post-doctorial researchers and professors to students everywhere.

There is only one important assumption: you have to be interested in nano!

Nanopaprika is always looking for new partners, if you have any idea, contact me at editor@nanopaprika.eu

Dr. András Paszternák, founder of Nanopaprika

Publications by A. Paszternák:

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

Polymeric Honeycombs Decorated by Nickel Nanoparticles

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