Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Mexican University develops chemicals to optimize solar cells

energia solar
energia solar

Abstract:
Specialists at the Institute of Materials Research of the National Autonomous University of Mexico (IIM -UNAM) developed chemical compounds that will collect energy from the sun with an energy transfer efficiency close to one hundred percent. This phenomenon would allow the design of a new generation of photovoltaic compounds that would achieve to capture light in the spectral range of UV - visible light in a more optimal way, in order to convert it into electricity.

Mexican University develops chemicals to optimize solar cells

Roma, Mexico | Posted on March 16th, 2014

Dr. Ernesto Rivera Garcia, scientist at the IIM -UNAM explained that to achieve that goal, currently a type of chemicals called dendritic are synthesized (they have ramifications as the dendrites of neurons). These compounds may be used in solar cells.

According to the explanation of Dr. Rivera Garcia, dendritic compounds synthesized at UNAM contain two chemical groups called porphyrin and pyrene, which interact with each other. "Several pyrene groups (donor) are excited and transfer all their energy to a single porphyrin group (acceptor), this happens in one of the molecules of the dendritic compounds," said the scientist.

"The fact that several donor groups are excited and transfer energy to an acceptor photoconductor group causes more efficiency in capturing sunlight and generating power," said the university researcher. Rivera García noted that this physical phenomenon is known as "antenna effect " , the same way a conventional antenna picks up a wave and amplifies to send to various devices, molecular pyrene groups receiving sunlight and transferring it to another group called porphyrin.

The university researcher said that in an effort to take advantage of this physical principle in the solar cells, the molecules would be modified for use in these power generation technologies. "For example, we can add some chemical groups such as carbazole or triphenylamine, the structure of these compounds is more efficient for power generation," said Garcia Rivera.

The scientist at the Institute of Materials Research at UNAM added that currently research projects are open, seeking to apply the principle of "antenna effect" on solar cells, but using graphene , one of the most promising materials due, among multiple factors , to its photoconductive properties . (Agencia ID)

####

For more information, please click here

Contacts:
José Gotés

Copyright © alphaGalileo

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Hybrid nanoantennas -- next-generation platform for ultradense data recording April 28th, 2016

Superfast light source made from artificial atom April 28th, 2016

Arrowhead Pharmaceuticals Files for Regulatory Clearance to Begin Phase 1/2 Study of ARC-521 April 28th, 2016

The Translational Research Center at the University Hospital of Erlangen in Germany uses the ZetaView from Particle Metrix to quantify extracellular vesicles such as exosomes April 28th, 2016

Graphene/ Graphite

University of Illinois researchers create 1-step graphene patterning method April 27th, 2016

Atomic magnets using hydrogen and graphene April 27th, 2016

Electrically Conductive Graphene Ink Enables Printing of Biosensors April 23rd, 2016

The Graphene Flagship Enters Core One April 22nd, 2016

Chemistry

Adding some salt to the recipe for energy storage materials: Researchers use common table salt as growth template April 22nd, 2016

NRL reveals novel uniform coating process of p-ALD April 21st, 2016

Team builds first quantum cascade laser on silicon: Eliminates the need for an external light source for mid-infrared silicon photonic devices or photonic circuits April 21st, 2016

McMaster researchers achieve a first by coaxing molecules into assembling themselves: Major advance creates the potential for useful new materials April 21st, 2016

Discoveries

Nanoparticles hold promise as double-edged sword against genital herpes April 28th, 2016

Researchers create a first frequency comb of time-bin entangled qubits: Discovery is a significant step toward multi-channel quantum communication and higher capacity quantum computers April 28th, 2016

Superfast light source made from artificial atom April 28th, 2016

The Translational Research Center at the University Hospital of Erlangen in Germany uses the ZetaView from Particle Metrix to quantify extracellular vesicles such as exosomes April 28th, 2016

Announcements

Hybrid nanoantennas -- next-generation platform for ultradense data recording April 28th, 2016

Superfast light source made from artificial atom April 28th, 2016

Arrowhead Pharmaceuticals Files for Regulatory Clearance to Begin Phase 1/2 Study of ARC-521 April 28th, 2016

The Translational Research Center at the University Hospital of Erlangen in Germany uses the ZetaView from Particle Metrix to quantify extracellular vesicles such as exosomes April 28th, 2016

Energy

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Researchers create artificial protein to control assembly of buckyballs April 27th, 2016

Flipping a chemical switch helps perovskite solar cells beat the heat April 26th, 2016

New spin Seebeck thermoelectric device with higher conversion efficiency created April 26th, 2016

Solar/Photovoltaic

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Flipping a chemical switch helps perovskite solar cells beat the heat April 26th, 2016

Manipulating light inside opaque layers April 24th, 2016

Thin-film solar cells: How defects appear and disappear in CIGSe cells: Concentration of copper plays a crucial role April 23rd, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic