Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Dye Sensitized Solar Cells Show Higher Performance with Bi-Layer Titanium Dioxide Nanostructures

Abstract:
Iranian researchers from Sharif University of Technology, in association with Cambridge University in Britain, successfully fabricated titanium dioxide dye sensitized solar cells (DSSCs).

Dye Sensitized Solar Cells Show Higher Performance with Bi-Layer Titanium Dioxide Nanostructures

Tehran, Iran | Posted on January 20th, 2013

The solar cells were produced in the form of bi-layer films with different crystalline structures and various morphologies of titanium dioxide nanostructures.

In order to obtain high conversion yield in solar cells, it is necessary to collect ion carriers produced by photons as electrical current before their re-combination. The collection of ion carriers must be carried out significantly faster than the re-combination. A promising solution is to increase the electron emission length in photo-anode electrode made of titanium dioxide nanoparticles with its one-dimensional nanostructures.

Morphology, crystalline structure and optical energy band gap are among the effective parameters on titanium dioxide film in electron transfer rate and the re-combination process of bi-layer DSSCs. Therefore, the researchers systematically studied titanium dioxide dye-sensitized solar cells with single layer and bi-layer film structures with various morphologies and crystalline phases. By measuring the inner resistance of cells, electron life-time, and electron transfer time, they also investigated the modification of their mechanism by using electrochemical impedance spectrometry (EIS).

Results showed that the bi-layer solar cells have higher fill factor rather than single layer cells with the same crystalline structure. In addition, the both single layer and bi-layer solar cells made of titanium dioxide with anatase crystalline structure have higher fill factor and power conversion yield in comparison to the cells consisted of rutile crystalline structure.

Results of the research have been published in September 2012 in Electrochimica Acta, vol. 78. For more information about the detail of the research, visit the full text of the article on pages 384-391 of the same journal.

####

For more information, please click here

Copyright © Fars News Agency

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

Raman Whispering Gallery Detects Nanoparticles September 1st, 2014

A new, tunable device for spintronics: An international team of scientists including physicist Jairo Sinova from the University of Mainz realises a tunable spin-charge converter made of GaAs August 29th, 2014

Nanoscale assembly line August 29th, 2014

New Vice President Takes Helm at CNSE CMOST: Catherine Gilbert To Lead CNSE Children’s Museum of Science and Technology Through Expansion And Relocation August 29th, 2014

Discoveries

Raman Whispering Gallery Detects Nanoparticles September 1st, 2014

A new, tunable device for spintronics: An international team of scientists including physicist Jairo Sinova from the University of Mainz realises a tunable spin-charge converter made of GaAs August 29th, 2014

Nanoscale assembly line August 29th, 2014

Copper shines as flexible conductor August 29th, 2014

Announcements

Raman Whispering Gallery Detects Nanoparticles September 1st, 2014

Nanoscale assembly line August 29th, 2014

New analytical technology reveals 'nanomechanical' surface traits August 29th, 2014

New Vice President Takes Helm at CNSE CMOST: Catherine Gilbert To Lead CNSE Children’s Museum of Science and Technology Through Expansion And Relocation August 29th, 2014

Energy

Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices August 28th, 2014

Aspen Aerogels, Inc. to Present at Barclays CEO Energy-Power Conference August 27th, 2014

Competition for Graphene: Berkeley Lab Researchers Demonstrate Ultrafast Charge Transfer in New Family of 2D Semiconductors August 26th, 2014

Chemical reaction yields "tapes" of porphin molecules: Flexible tapes from the nanoworld August 13th, 2014

Solar/Photovoltaic

Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices August 28th, 2014

Competition for Graphene: Berkeley Lab Researchers Demonstrate Ultrafast Charge Transfer in New Family of 2D Semiconductors August 26th, 2014

Eco-friendly 'pre-fab nanoparticles' could revolutionize nano manufacturing: UMass Amherst team invents a way to create versatile, water-soluble nano-modules August 13th, 2014

An Inkjet-Printed Field-Effect Transistor for Label-Free Biosensing August 11th, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE