Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

'Nano-hashtags' could provide definite proof of Majorana particles: Eindhoven network of nanowires gives particles the space to exchange places August 23rd, 2017

DNA sensor system developed for specific and sensitive measurement of cancer-relevant enzyme activity August 23rd, 2017

Lego proteins revealed: Self-assembling protein complexes based on a single mutation could provide scaffolding for nanostructures August 23rd, 2017

Heating quantum matter: A novel view on topology: Physicists demonstrate how heating up a quantum system can be used as a universal probe for exotic states of matter August 22nd, 2017

Discoveries

'Nano-hashtags' could provide definite proof of Majorana particles: Eindhoven network of nanowires gives particles the space to exchange places August 23rd, 2017

DNA sensor system developed for specific and sensitive measurement of cancer-relevant enzyme activity August 23rd, 2017

Lego proteins revealed: Self-assembling protein complexes based on a single mutation could provide scaffolding for nanostructures August 23rd, 2017

Heating quantum matter: A novel view on topology: Physicists demonstrate how heating up a quantum system can be used as a universal probe for exotic states of matter August 22nd, 2017

Announcements

'Nano-hashtags' could provide definite proof of Majorana particles: Eindhoven network of nanowires gives particles the space to exchange places August 23rd, 2017

DNA sensor system developed for specific and sensitive measurement of cancer-relevant enzyme activity August 23rd, 2017

Lego proteins revealed: Self-assembling protein complexes based on a single mutation could provide scaffolding for nanostructures August 23rd, 2017

Heating quantum matter: A novel view on topology: Physicists demonstrate how heating up a quantum system can be used as a universal probe for exotic states of matter August 22nd, 2017

Energy

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Freeze-dried foam soaks up carbon dioxide: Rice University scientists lead effort to make novel 3-D material August 16th, 2017

Two Scientists Receive Grants to Develop New Materials: Chad Mirkin and Monica Olvera de la Cruz recognized by Sherman Fairchild Foundation August 16th, 2017

Fewer defects from a 2-D approach August 15th, 2017

Solar/Photovoltaic

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Fewer defects from a 2-D approach August 15th, 2017

Controlled manipulation: Scientists at FAU are investigating the properties of hybrid systems consisting of carbon nanostructures and a dye August 8th, 2017

Simultaneous Design and Nanomanufacturing Speeds Up Fabrication: Method enhances broadband light absorption in solar cells August 5th, 2017

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