Efficient and stable back-illuminated sub-module dye-sensitized solar cells by decorating SiO2 porous layer with TiO2 electrode

Kun Mu Lee; Chia Yuan Chen; Yi Ting Tsai; Ling Chuan Lin; Chun Guey Wu

doi:10.1039/c3ra41687a

Efficient and stable back-illuminated sub-module dye-sensitized solar cells by decorating SiO₂ porous layer with TiO₂ electrode

Kun Mu Lee^*, Chia Yuan Chen, Yi Ting Tsai, Ling Chuan Lin, Chun Guey Wu

^*Corresponding author for this work

National Central University

Research output: Contribution to journal › Journal Article › peer-review

15 Scopus citations

Abstract

The present study focuses on enhancing the efficiency of back-illuminated dye-sensitized solar cells (DSCs) by incorporating a SiO₂ mesoporous layer on a TiO₂ electrode. The performance of the DSCs is investigated by incident photon conversion efficiency (IPCE) and electrochemical impedance spectroscopy (EIS). It is observed that the photocurrent increases when the TiO₂ electrode is coated with a SiO₂ layer, resulting in an increase in the incident light to the dye-TiO₂ electrode, especially in the wavelength range 400-600 nm. The TiO₂ electrode coated with 500 nm diameter mesoporous SiO₂ exhibits better device performance than that using 100 nm diameter SiO₂ particles. With this modification, the Ti foil-based flexible sub-module DSC (5 cm × 10 cm) shows a high conversion efficiency of 7.13% under illumination of 100 mW cm^-2 (AM 1.5), as well as good stability.

Original language	English
Pages (from-to)	9994-10000
Number of pages	7
Journal	RSC Advances
Volume	3
Issue number	25
DOIs	https://doi.org/10.1039/c3ra41687a
State	Published - 07 07 2013
Externally published	Yes

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title = "Efficient and stable back-illuminated sub-module dye-sensitized solar cells by decorating SiO2 porous layer with TiO2 electrode",

abstract = "The present study focuses on enhancing the efficiency of back-illuminated dye-sensitized solar cells (DSCs) by incorporating a SiO2 mesoporous layer on a TiO2 electrode. The performance of the DSCs is investigated by incident photon conversion efficiency (IPCE) and electrochemical impedance spectroscopy (EIS). It is observed that the photocurrent increases when the TiO2 electrode is coated with a SiO2 layer, resulting in an increase in the incident light to the dye-TiO2 electrode, especially in the wavelength range 400-600 nm. The TiO2 electrode coated with 500 nm diameter mesoporous SiO2 exhibits better device performance than that using 100 nm diameter SiO2 particles. With this modification, the Ti foil-based flexible sub-module DSC (5 cm × 10 cm) shows a high conversion efficiency of 7.13% under illumination of 100 mW cm-2 (AM 1.5), as well as good stability.",

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AU - Lee, Kun Mu

AU - Chen, Chia Yuan

AU - Tsai, Yi Ting

AU - Lin, Ling Chuan

AU - Wu, Chun Guey

PY - 2013/7/7

Y1 - 2013/7/7

N2 - The present study focuses on enhancing the efficiency of back-illuminated dye-sensitized solar cells (DSCs) by incorporating a SiO2 mesoporous layer on a TiO2 electrode. The performance of the DSCs is investigated by incident photon conversion efficiency (IPCE) and electrochemical impedance spectroscopy (EIS). It is observed that the photocurrent increases when the TiO2 electrode is coated with a SiO2 layer, resulting in an increase in the incident light to the dye-TiO2 electrode, especially in the wavelength range 400-600 nm. The TiO2 electrode coated with 500 nm diameter mesoporous SiO2 exhibits better device performance than that using 100 nm diameter SiO2 particles. With this modification, the Ti foil-based flexible sub-module DSC (5 cm × 10 cm) shows a high conversion efficiency of 7.13% under illumination of 100 mW cm-2 (AM 1.5), as well as good stability.

AB - The present study focuses on enhancing the efficiency of back-illuminated dye-sensitized solar cells (DSCs) by incorporating a SiO2 mesoporous layer on a TiO2 electrode. The performance of the DSCs is investigated by incident photon conversion efficiency (IPCE) and electrochemical impedance spectroscopy (EIS). It is observed that the photocurrent increases when the TiO2 electrode is coated with a SiO2 layer, resulting in an increase in the incident light to the dye-TiO2 electrode, especially in the wavelength range 400-600 nm. The TiO2 electrode coated with 500 nm diameter mesoporous SiO2 exhibits better device performance than that using 100 nm diameter SiO2 particles. With this modification, the Ti foil-based flexible sub-module DSC (5 cm × 10 cm) shows a high conversion efficiency of 7.13% under illumination of 100 mW cm-2 (AM 1.5), as well as good stability.

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Efficient and stable back-illuminated sub-module dye-sensitized solar cells by decorating SiO₂ porous layer with TiO₂ electrode

Abstract

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