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http://hdl.handle.net/10397/95884
Title: | A paper-based electrode using a graphene dot/PEDOT:PSS composite for flexible solar cells | Authors: | Lee, CP Lai, KY Lin, CA Li, CT Ho, KC Wu, CI Lau, SP He, JH |
Issue Date: | Jun-2017 | Source: | Nano energy, June 2017, v. 36, p. 260-267 | Abstract: | We have synthesized a metal-free composite ink that contains graphene dots (GDs) and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) that can be used on paper to serve as the counter electrode in a flexible dye-sensitized solar cell (DSSC). This paper-based GD/PEDOT:PSS electrode is low-cost, light-weight, flexible, environmentally friendly, and easy to cut and process for device fabrication. We determined the GD/PEDOT:PSS composite effectively fills the dense micro-pores in the paper substrate, which leads to improved carrier transport in the electrode and a 3-fold enhanced cell efficiency as compared to the paper electrode made with sputtered Pt. Moreover, the DSSC with the paper electrode featuring the GD/PEDOT:PSS composite did not fail in photovoltaic tests even after bending the electrode 150 times, whereas the device made with the Pt-based paper electrode decreased in efficiency by 45% after such manipulation. These exceptional properties make the metal-free GD/PEDOT:PSS composite ink a promising electrode material for a wide variety of flexible electronic applications. | Keywords: | Conducting polymer Dye-sensitized solar cell Flexible electrode Graphene dots Metal-free counter electrode Paper electrode |
Publisher: | Elsevier | Journal: | Nano energy | ISSN: | 2211-2855 | EISSN: | 2211-3282 | DOI: | 10.1016/j.nanoen.2017.04.044 | Rights: | © 2017 Published by Elsevier Ltd. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Lee, C. P., Lai, K. Y., Lin, C. A., Li, C. T., Ho, K. C., Wu, C. I., ... & He, J. H. (2017). A paper-based electrode using a graphene dot/PEDOT: PSS composite for flexible solar cells. Nano Energy, 36, 260-267 is available at https://doi.org/10.1016/j.nanoen.2017.04.044 |
Appears in Collections: | Journal/Magazine Article |
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Lau_Paper-Based_Electrode_Using.pdf | Pre-Published version | 1.48 MB | Adobe PDF | View/Open |
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