Alumina and Hafnia ALD Layers for a Niobium-Doped Titanium Oxide Photoanode
Joint Authors
Cao, Guozhong
al-Dahoudi, Naji
Zhang, Qifeng
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-31
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Niobium-doped titanium dioxide (TiO2) nanoparticles were used as a photoanode in dye-sensitized solar cells (DSCs).
They showed a high photocurrent density due to their higher conductivity; however, a low open-circuit voltage was exhibited due to the back-reaction of photogenerated electrons.
Atomic layer deposition is a useful technique to form a conformal ultrathin layer of Al2O3 and HfO, which act as an energy barrier to suppress the back electrons from reaching the redox medium.
This resulted in an increase of the open-circuit voltage and therefore led to higher performance.
HfO showed an improvement of the light-to-current conversion efficiency by 74%, higher than the 21% enhancement obtained by utilizing Al2O3 layers.
American Psychological Association (APA)
al-Dahoudi, Naji& Zhang, Qifeng& Cao, Guozhong. 2012. Alumina and Hafnia ALD Layers for a Niobium-Doped Titanium Oxide Photoanode. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-469094
Modern Language Association (MLA)
al-Dahoudi, Naji…[et al.]. Alumina and Hafnia ALD Layers for a Niobium-Doped Titanium Oxide Photoanode. International Journal of Photoenergy No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-469094
American Medical Association (AMA)
al-Dahoudi, Naji& Zhang, Qifeng& Cao, Guozhong. Alumina and Hafnia ALD Layers for a Niobium-Doped Titanium Oxide Photoanode. International Journal of Photoenergy. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-469094
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-469094
