Characteristics of Boron Decorated TiO2 Nanoparticles for Dye-Sensitized Solar Cell Photoanode
Joint Authors
Ho, Ching-Yuan
Lin, J. K.
Wang, Hong-Wen
Source
International Journal of Photoenergy
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-09-28
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Different boron weight percents on mixed-phase (anatase and rutile) TiO2 nanoparticles were synthesized to investigate structure morphology, defect states, luminescence properties, and energy conversion.
The measured results indicate that boron doping of TiO2 both increases the crystallite size and rutile-phase percent in an anatase matrix.
Decreasing the band gap by boron doping can extend the absorption to the visible region, while undoped TiO2 exhibits high UV absorption.
Oxygen vacancy defects generated by boron ions reduce Ti+4 and affect electron transport in dye-sensitized solar cells.
Excess electrons originating from the oxygen vacancies of doped TiO2 downward shift in the conduction band edge and prompt the transfer of photoelectrons from the conduction band of the rutile phase to the lower energy anatase trapping sites; they then separate charges to enhance the photocurrent and J sc .
Although the resistance of the electron recombination ( R k ) between doped TiO2 photoanode and the electrolyte for the doped TiO2 sample is lower, a longer electron lifetime ( τ ) of 19.7 ms with a higher electron density ( n s ) of 2.1 × 1018 cm−3 contributes to high solar conversion efficiency.
American Psychological Association (APA)
Ho, Ching-Yuan& Lin, J. K.& Wang, Hong-Wen. 2015. Characteristics of Boron Decorated TiO2 Nanoparticles for Dye-Sensitized Solar Cell Photoanode. International Journal of Photoenergy،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1066574
Modern Language Association (MLA)
Ho, Ching-Yuan…[et al.]. Characteristics of Boron Decorated TiO2 Nanoparticles for Dye-Sensitized Solar Cell Photoanode. International Journal of Photoenergy No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1066574
American Medical Association (AMA)
Ho, Ching-Yuan& Lin, J. K.& Wang, Hong-Wen. Characteristics of Boron Decorated TiO2 Nanoparticles for Dye-Sensitized Solar Cell Photoanode. International Journal of Photoenergy. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1066574
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1066574