Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/97032
Title: | Interface functionalization of photoelectrodes with graphene for high performance dye-sensitized solar cells | Authors: | Chen, Tao Hu, Weihua Song, Junling Guai, Guan Hong Li, Chang Ming |
Issue Date: | 2012 | Source: | Chen, T., Hu, W., Song, J., Guai, G. H., & Li, C. M. (2012). Interface Functionalization of Photoelectrodes with Graphene for High Performance Dye-Sensitized Solar Cells. Advanced Functional Materials, 22(24), 5245-5250. | Series/Report no.: | Advanced functional materials | Abstract: | The microstructures of photo- and counter-electrodes play critical roles in the performance of dye-sensitized solar cells (DSSCs). In particular, various interfaces, such as fluorinated-tin oxide (FTO)/TiO2, TiO2/TiO2, and TiO2/electrolyte, in DSSCs significantly affect the final power conversion efficiency (PCE). However, research has generally focused more on the design of various nanostructured semiconducting materials with emphasis on optimizing chemical or/and physical properties, and less on these interface functionalizations for performance improvement. This work explores a new application of graphene to modify the interface of FTO/TiO2 to suppress charge recombination. In combination with interfaces functionalization of TiO2/TiO2 for low charge-transport resistance and high charge-transfer rate, the final PCE of DSSC is remarkably improved from 5.80% to 8.13%, achieving the highest efficiency in comparison to reported graphene/TiO2-based DSSCs. The method of using graphene to functionalize the surface of FTO substrate provides a better alternative method to the conventional pre-treatment through hydrolyzing TiCl4 and an approach to reduce the adverse effect of microstructural defect of conducting glass substrate for electronic devices. | URI: | https://hdl.handle.net/10356/97032 http://hdl.handle.net/10220/10422 |
ISSN: | 1616-3028 | DOI: | 10.1002/adfm.201201126 | Schools: | School of Chemical and Biomedical Engineering | Research Centres: | Centre for Advanced Bionanosystems | Rights: | © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | SCBE Journal Articles |
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