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Three-Dimensional Nanoarchitectured Transparent Conducting Oxides: Synthesis, Characterization and Photovoltaic Applications

Published online by Cambridge University Press:  13 May 2013

Zhenzhen Yang  and
Tao Xu
Zhenzhen Yang
Affiliation:
Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA
Tao Xu*
Affiliation:
Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA
*
*Email: [email protected]
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Abstract

The photovoltaic materials in solar cells take multiple tasks including absorbing lights, separating the light-induced electron-hole pairs, and consequently transport charges to the corresponding metallic electrodes. These tasks, however, are often mutually conflicting. In particular, a thick PV layer is desired to absorb enough light for creating sufficient light-induced charges, while a thin PV layer is also desired to shorten the charge transport path length insider the PV layer in order to suppress recombination. Using dye-sensitized solar cells as an exploratory platform, this dilemma is mitigated using a non-traditional 3-dimensional (3-D) highly doped fluorinated SnO2 (FTO, core)-TiO2(shell) nanostructured photoanodes. The FTO core serves as conductive core for low-resistance and drift-assisted electron extraction. The thin, conformal and low-doped TiO2 shell layer is coated by atomic layer deposition, which provides a large area for anchoring dyes and maintains a large resistance against recombination.

Keywords

atomic layer depositionoxidephotovoltaic
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1552: Symposium S – Nanostructured Metal Oxides for Advanced Applications , 2013 , pp. 23 - 28
Copyright
Copyright © Materials Research Society 2013 

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