Effect of open- and close-ended TiO2 nanotube arrays on transparent conducting substrates for dye-sensitized solar cells application

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題名:	Effect of open- and close-ended TiO2 nanotube arrays on transparent conducting substrates for dye-sensitized solar cells application
作者:	李文仁;Kathirvel, Sasipriya;Su, Chaochin;Hsu, Chingwen;Ho, Shih-Yu;Chen, Bo-Ren;Li, Wen-Ren
貢獻者:	理學院化學學系
關鍵詞:	Anatase;Annealing;Anodizing;Dyes;Nanostructure;Photovoltaic cells;Solar cells;Titanium dioxide
日期:	2014-01-01
上傳時間:	2026-04-21 14:19:54 (UTC+8)
出版者:	Springer Netherlands
摘要:	摘要： The application of freestanding TiO sub(2) nanotubes on the photovoltaic performance of dye-sensitized solar cells utilizing front side illumination has been investigated. TiO sub(2) nanotubes were grown on Ti foil using the anodization process at a constant voltage of 60 V for various anodization times such as 2, 4, and 6 h. Subsequently, the formations of freestanding films of close-ended and open-ended TiO sub(2) nanotubes were carried out via a second anodization step at 40 and 80 V, respectively. X-ray diffraction analysis revealed the formation of amorphous structure TiO sub(2) nanotubes before annealing and anatase phase after annealing at 450 degree C. The diameter (60-90-nm-inner diameter) and thickness (7-19 mu m) of TiO sub(2) nanotubes were measured from scanning electron microscopy and transmission electron microscopy analysis. The detached TiO sub(2) nanotube films were affixed on FTO substrates employing anatase TiO sub(2) paste. The fixation of freestanding TiO sub(2) nanotubes on FTO substrates can be categorized as three parts namely: close-ended nanotubes downside, close-ended nanotubes upside, and open-ended nanotubes. Among the various anodization times, the cells fabricated using 6 h anodized TiO sub(2) nanotubes photoelectrode attained excellent photoelectric efficiencies of 6.91, 6.47, and 7.69 % for close-ended downside, close-ended upside and open ended, respectively. The DSSCs based on open-ended photoelectrodes achieved the highest photoelectrical conversion efficiency are due to higher dye loading amount. 出版日期： 2014-05-01 出處： Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 2014-05, Vol.16 (5), p.1-14 識別號： ISSN: 1388-0764 識別號： EISSN: 1572-896X 識別號： DOI: 10.1007/s11051-014-2377-3
顯示於類別:	[化學學系] 期刊論文

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