News | Publications

Technical Proceedings of the 2008 Clean Technology Conference and Trade Show

Clean Technology 2008

Chapter 2: Renewables: Photovoltaics, Wind & Geothermal


Mesoporous TiO2 thin-film for Dye-Sensitized Solar Cell (DSSC) Applicationv

Authors:A. Vats, R. Shende, J. Swiatkiewicz, J. Puszynski
Affilation:South Dakota School of Mines & Technology, US
Pages:113 - 116
Keywords:dye-sensitized solar cells, mesoporous TiO2, thin film
Abstract:The DSSC is a low-cost device as compared with the conventional ‘p-n’ junction devices. This device utilizes about 5 m thick film of TiO2 nanocrystals to form a ‘bulk’ junction with a large surface area at the semiconductor/electrolyte interface that provides sufficient anchoring sites for dye sensitizers to yield effective energy conversion. This research has been focused on the synthesis of a mesoporous thin-film of TiO2 for its application in DSSC devices using a sol-gel method. In this, a sol-solution containing a non-ionic surfactant, Ti-alkoxide precursor, and an acid catalyst was spin-coated on conductive glass substrates. Removal of the surfactant template was accomplished by solvent leaching and calcination at 400-450oC. The X-ray diffraction analysis of the films indicated presence of the cubic anatase phase and TEM images showed mesopores in the range of 4-8 nm. The surface roughness of the films was about 2 nm over an area of 600 nm2. In another synthesis method, we are investigating deposition of TiO2 film by infusion and selective condensation of Ti-precursor in surfactant films by the supercritical CO2. As an extension of this method, we are exploring the atomic layer deposition of mesoporous TiO2 film. For these films, less dye aggregation, higher surface coverage, and effective energy conversion are expected.
Mesoporous TiO2 thin-film for Dye-Sensitized Solar Cell (DSSC) Applicationv
Order:Online/Mail/Fax Ordering Options
Indexes:Keywords, Authors, Affiliations

TCW 2014
Washington DC, June 14-17, 2015

Energy • Ag • Islands • Security
Honolulu, Hawaii, August 24-26, 2015

DES 2015
Austin, TX, December 1-3, 2015

"We've very much enjoyed being a member of CTSI. In addition to the many networking and conference opportunities, we've found the monthly newsletters to be the best consolidated source of clean technology industry information and updates on policy, grants and market intelligence."

- Patrick J. Piper, QM Power, Inc.

"Ener-G-Rotors is pleased to be a member of CTSI. CTSI has been very supportive of our efforts in clean technology, helping to connect us with key legislators, introducing us to contacts at the DOE, and providing opportunities to network with other clean technology companies."

- Michael Newell, Ener-G-Rotors, Inc.

"The Clean Technology and Sustainable Industries Organization brings together the world's most innovative companies to provide critical thinking and technology solutions to real-world challenges."

- Dr. Ray O Johnson, Senior Vice President and Chief Technology Officer, Lockheed Martin

© Clean Technology and Sustainable Industries Organization. All Rights Reserved.
Terms of Use | Privacy Policy | Contact Us | Subscribe | Site Map