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High-efficiency dye-sensitized solar cells based on robust and both-end-open TiO2 nanotube membranes.

Lin J, Chen J, Chen X - Nanoscale Res Lett (2011)

Bottom Line: The high-quality TiO2 membranes used here were obtained by a self-detaching technique, with the superiorities of facile but reliable procedures.Compared with those DSSCs consisting of the bottom-closed membranes or attached to Ti substrate, the carefully assembled and front-side illuminated DSSCs showed an enhanced solar energy conversion efficiency as high as 5.32% of 24-μm-thick TiO2 nanotube membranes without further treatments.These results reveal that by facilitating high-quality membrane synthesis, this kind of DSSCs assembly with optimized tube configuration can have a fascinating future.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Physics, The State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. xfchen@sjtu.edu.cn.

ABSTRACT
In the present work, dye-sensitized solar cells (DSSCs) were fabricated by incorporating transparent electrodes of ordered free-standing TiO2 nanotube (TNT) arrays with both ends open transferred onto fluorine-doped tin oxide (FTO) conductive glass. The high-quality TiO2 membranes used here were obtained by a self-detaching technique, with the superiorities of facile but reliable procedures. Afterwards, these TNT membranes can be easily transferred to FTO glass substrates by TiO2 nanoparticle paste without any crack. Compared with those DSSCs consisting of the bottom-closed membranes or attached to Ti substrate, the carefully assembled and front-side illuminated DSSCs showed an enhanced solar energy conversion efficiency as high as 5.32% of 24-μm-thick TiO2 nanotube membranes without further treatments. These results reveal that by facilitating high-quality membrane synthesis, this kind of DSSCs assembly with optimized tube configuration can have a fascinating future.

No MeSH data available.


Related in: MedlinePlus

Optical images and schematic illustration for the preparation of front-side illuminated DSSCs. (a) Optical image of the free-standing membranes adhered on FTO glass. (b) Schematic illustration of DSSC fabricated with free-standing TNT membrane. (c) Optical image of our DSSC sample with the front side upturned.
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Figure 3: Optical images and schematic illustration for the preparation of front-side illuminated DSSCs. (a) Optical image of the free-standing membranes adhered on FTO glass. (b) Schematic illustration of DSSC fabricated with free-standing TNT membrane. (c) Optical image of our DSSC sample with the front side upturned.

Mentions: As discussed above, the adhesion quality of the membranes to the FTO substrate is quite satisfied. Figure 3a presents the optical image of the free-standing membranes adhered on FTO glass. The upper one is the membrane with both ends open. This membrane is amorphous and not optically transparent. After being annealed at 450°C, the membrane will become transparent. The lower sample in Figure 3a is the membrane with the bottom end closed. This membrane has been thermal treated at 400°C during the detaching process and crystallized in the anatase phase. After being annealed at 450°C, the samples were sensitized by N719 dye solution and assembled into DSSCs. The schematic illustration of DSSC fabricated with free-standing TNT membrane is shown in Figure 3b. Figure 3c is the optical image of our DSSC sample with the front side upturned. There is a small piece of glass pasted on the backside to cover the pore for electrolyte injection.


High-efficiency dye-sensitized solar cells based on robust and both-end-open TiO2 nanotube membranes.

Lin J, Chen J, Chen X - Nanoscale Res Lett (2011)

Optical images and schematic illustration for the preparation of front-side illuminated DSSCs. (a) Optical image of the free-standing membranes adhered on FTO glass. (b) Schematic illustration of DSSC fabricated with free-standing TNT membrane. (c) Optical image of our DSSC sample with the front side upturned.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211988&req=5

Figure 3: Optical images and schematic illustration for the preparation of front-side illuminated DSSCs. (a) Optical image of the free-standing membranes adhered on FTO glass. (b) Schematic illustration of DSSC fabricated with free-standing TNT membrane. (c) Optical image of our DSSC sample with the front side upturned.
Mentions: As discussed above, the adhesion quality of the membranes to the FTO substrate is quite satisfied. Figure 3a presents the optical image of the free-standing membranes adhered on FTO glass. The upper one is the membrane with both ends open. This membrane is amorphous and not optically transparent. After being annealed at 450°C, the membrane will become transparent. The lower sample in Figure 3a is the membrane with the bottom end closed. This membrane has been thermal treated at 400°C during the detaching process and crystallized in the anatase phase. After being annealed at 450°C, the samples were sensitized by N719 dye solution and assembled into DSSCs. The schematic illustration of DSSC fabricated with free-standing TNT membrane is shown in Figure 3b. Figure 3c is the optical image of our DSSC sample with the front side upturned. There is a small piece of glass pasted on the backside to cover the pore for electrolyte injection.

Bottom Line: The high-quality TiO2 membranes used here were obtained by a self-detaching technique, with the superiorities of facile but reliable procedures.Compared with those DSSCs consisting of the bottom-closed membranes or attached to Ti substrate, the carefully assembled and front-side illuminated DSSCs showed an enhanced solar energy conversion efficiency as high as 5.32% of 24-μm-thick TiO2 nanotube membranes without further treatments.These results reveal that by facilitating high-quality membrane synthesis, this kind of DSSCs assembly with optimized tube configuration can have a fascinating future.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Physics, The State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. xfchen@sjtu.edu.cn.

ABSTRACT
In the present work, dye-sensitized solar cells (DSSCs) were fabricated by incorporating transparent electrodes of ordered free-standing TiO2 nanotube (TNT) arrays with both ends open transferred onto fluorine-doped tin oxide (FTO) conductive glass. The high-quality TiO2 membranes used here were obtained by a self-detaching technique, with the superiorities of facile but reliable procedures. Afterwards, these TNT membranes can be easily transferred to FTO glass substrates by TiO2 nanoparticle paste without any crack. Compared with those DSSCs consisting of the bottom-closed membranes or attached to Ti substrate, the carefully assembled and front-side illuminated DSSCs showed an enhanced solar energy conversion efficiency as high as 5.32% of 24-μm-thick TiO2 nanotube membranes without further treatments. These results reveal that by facilitating high-quality membrane synthesis, this kind of DSSCs assembly with optimized tube configuration can have a fascinating future.

No MeSH data available.


Related in: MedlinePlus