2011
DOI: 10.1007/s10854-011-0601-9
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Influence of annealing temperature on performance of dye-sensitized TiO2 nanorod solar cells

Abstract: Single-crystal rutile TiO 2 nanorod (NR) arrays have been synthesized on the fluorine-doped tin oxide substrates, followed by an annealing at 200-600°C. It is found that DSSCs fabricated using TiO 2 NR arrays which undergo annealing display an increased efficiency than those that do not undergo annealing. The optimal efficiency of 4.42% power conversion is achieved in the DSSC made with 500°C annealed arrays, which show a 450% increase in the overall conversion efficiency. The improvement is ascribed to the in… Show more

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Cited by 18 publications
(10 citation statements)
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“…By increasing the annealing temperature from 200 to 500 °C, the photocurrent was continuously improved from 0.03 mA/cm 2 to a maximum of 1.38 mA/cm 2 , as displayed in Figure S2b. Further increase of the annealing temperature to 600 °C can lead to a decrease in photocurrent density, which is due to the increase of electrical resistance of the FTO conducting layer . Therefore, the photoelectrochemical properties of TiO 2 NRAs grown for 4 h and annealed at 500 °C for 1 h are investigated in detail in the following part.…”
Section: Results and Discussionmentioning
confidence: 99%
“…By increasing the annealing temperature from 200 to 500 °C, the photocurrent was continuously improved from 0.03 mA/cm 2 to a maximum of 1.38 mA/cm 2 , as displayed in Figure S2b. Further increase of the annealing temperature to 600 °C can lead to a decrease in photocurrent density, which is due to the increase of electrical resistance of the FTO conducting layer . Therefore, the photoelectrochemical properties of TiO 2 NRAs grown for 4 h and annealed at 500 °C for 1 h are investigated in detail in the following part.…”
Section: Results and Discussionmentioning
confidence: 99%
“…It might be possible that the TiO 2 seeds also possess the rutile phase [28]. Additionally, it's worth noting that the intensity of TiO 2 (101) is significantly lower than (200) of SnO 2 , which is different from the case of TiO 2 NRAs grown on bare FTO in our previous reports [24,29]. It suggests that the presence of the seeds might suppress the preferred growth of TiO 2 NRAs, which is reasonable since that the seeding layer made up of thin NPs.…”
Section: Pec Measurements Of Tio 2 Nras For Detection Of Pb 21 Ionsmentioning
confidence: 75%
“…7 Recent results employing one-dimensional (1D) electrodes consisting of nanorods, nanowires, nanofibers, and ordered arrays of nanotubes showed directional transport of electrons and lower recombination. [8][9][10][11][12][13][14] More recently, 3D structures such as inverse opal-based structures and interference lithography patterns have also been introduced as alternative electrode materials. [15][16][17][18] An understanding of how transport and recombination properties are related to the morphology of electrode structures and a comparison of these properties in newly designed electrodes to those of conventional TiO 2 electrodes are important for the further design of new electrode materials.…”
Section: Introductionmentioning
confidence: 99%