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TitleBifacial dye-sensitized solar cells : a strategy to enhance overall efficiency based on transparent polyaniline electrode
Author(s)Wu, Jihui
Li, Yan
Tang, Qunwei
Yue, Gentian
Lin, Jianming
Huang, Miaoliang
Meng Lijian
KeywordsSolar cells
Energy transfer
Applied physics
Electronic materials
Issue date7-Feb-2014
PublisherNature Publishing Group
JournalScientific Reports
Abstract(s)Dye-sensitized solar cell (DSSC) is a promising solution to global energy and environmental problems because of its clean, low-cost, high efficiency, good durability, and easy fabrication. However, enhancing the efficiency of the DSSC still is an important issue. Here we devise a bifacial DSSC based on a transparent polyaniline (PANI) counter electrode (CE). Owing to the sunlight irradiation simultaneously from the front and the rear sides, more dye molecules are excited and more carriers are generated, which results in the enhancement of short-circuit current density and therefore overall conversion efficiency. The photoelectric properties of PANI can be improved by modifying with 4-aminothiophenol (4-ATP). The bifacial DSSC with 4-ATP/PANI CE achieves a light-to-electric energy conversion efficiency of 8.35%, which is increased by ,24.6% compared to the DSSC irradiated from the front only. This new concept along with promising results provides a new approach for enhancing the photovoltaic performances of solar cells.
AccessOpen access
Appears in Collections:CDF - GRF - Artigos/Papers (with refereeing)

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