Hydrothermal growth of bilayered rutile-phased TiO2 nanorods/micro-sizeTiOz flower in highly acidic solution for dye-sensitized solar cell
Aligned rutile-phased TiO2 (r-TNRs) nanorods and micro-size rutile-phased TiO2 flowers (r-TFs) films were prepared on fluorinedoped tin oxide (FIO) substrate using highly acidic solution by two steps of hydrothermal process. The hydrothermal process was done at 150'C in 5 h for the first step a...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
Springer
2015
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| Subjects: | |
| Online Access: | http://link.springer.com/10.1007/s10971-015-3615-6 http://link.springer.com/10.1007/s10971-015-3615-6 http://eprints.uthm.edu.my/6859/1/Mohd_Khairul_Ahmad_U.pdf |
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| Summary: | Aligned rutile-phased TiO2 (r-TNRs) nanorods
and micro-size rutile-phased TiO2 flowers (r-TFs) films
were prepared on fluorinedoped tin oxide (FIO) substrate
using highly acidic solution by two steps of hydrothermal
process. The hydrothermal process was done at 150'C in
5 h for the first step and 2 h for the second step. These
films were used as a photoelectrode in dye-sensitized solar
cell (DSC) application. Aligned r-TNRs and r-TFs were
prepared using one-step and two-step hydrothermal processes,
respectively. At the end of second step hydrothermal
process, micro-size rutile-phased TiO2 flowers (r-TFs)
were observed on top of r-TNRs (FTO/r-TNRs/r-TFs).
Power conversion efficiencies for both aligned r-TNRs and
r-TNRs/r-TFs were compared. From the results, DSC made
of r-TNRs only produced energy conversion efficiency of
1.52 Va and DSC made of r-TNRs/r-TFs gave excellent
energy conversion efficiency (fi of 4.27 7o. |
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