Enhanced photovoltaic performance and long-term stability of dye-sensitized solar cells by incorporating SiO2 nanoparticles in binary ionic liquid electrolytes

Hsin-Fang Lee; Jhih-Lin Wu; Po-Ya Hsu; Yung-Liang Tung; Fan-Yi Ouyang; Ji-Jung Kai

doi:10.1016/j.tsf.2012.06.025

Author(s)

Hsin-Fang Lee
Jhih-Lin Wu
Po-Ya Hsu
Yung-Liang Tung
Fan-Yi Ouyang

Detail(s)

Original language	English
Pages (from-to)	2-6
Journal / Publication	Thin Solid Films
Volume	529
Publication status	Published - 1 Feb 2013
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.tsf.2012.06.025 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84873709282&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(1020b4d3-08f1-4fe7-a170-be461c523cd8).html

Abstract

Hydrophilic SiO₂ nanoparticles in a binary ionic liquid (bi-IL) consisting of 1-propyl-3-methylimidazolium iodide (PMII) and 1-ethyl-3-methyl-imidazolium dicyanimide (EMIDCA) facilitated electron transfer and solidified the electrolyte for a dye-sensitized solar cell (DSC). We investigated the dependence of charge transport and photovoltaic performance on the composition of bi-IL electrolytes with varied ratio of SiO₂ nanoparticles. The electrochemical impedance spectra revealed a decreased resistance to charge transfer at the Pt counter electrode (R_ct1) when SiO₂ (up to 2.0 wt.%) was added, improving the photovoltaic parameters. The DSC based on a TiO₂ nanocrystalline film (thickness 14.2 μm) with a composite ionic gel electrolyte of EMIDCA/PMII bi-IL (33 vol.% of EMIDCA) incorporating SiO₂ (2 wt.%) exhibited a power conversion efficiency of 5.28% under simulated solar illumination (AM 1.5 G, 100 mW cm^{- 2}). The durability of DSC with a SiO₂ solidified electrolyte was superior to that of a liquid one, exhibiting good stability at 60 C in darkness during an accelerated test for 1000 h. © 2012 Elsevier B.V.

Research Area(s)

Dye-sensitized solar cells, Electrochemical impedance spectroscopy, Ionic liquid, Long-term stability, Quasi-solid electrolytes

Citation Format(s)

[ RIS ] [ BibTeX ]

Enhanced photovoltaic performance and long-term stability of dye-sensitized solar cells by incorporating SiO₂ nanoparticles in binary ionic liquid electrolytes. / Lee, Hsin-Fang; Wu, Jhih-Lin; Hsu, Po-Ya; Tung, Yung-Liang; Ouyang, Fan-Yi; Kai, Ji-Jung.

In: Thin Solid Films, Vol. 529, 01.02.2013, p. 2-6.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal

Lee, H-F, Wu, J-L, Hsu, P-Y, Tung, Y-L, Ouyang, F-Y & Kai, J-J 2013, 'Enhanced photovoltaic performance and long-term stability of dye-sensitized solar cells by incorporating SiO₂ nanoparticles in binary ionic liquid electrolytes', Thin Solid Films, vol. 529, pp. 2-6. https://doi.org/10.1016/j.tsf.2012.06.025

Lee, H-F., Wu, J-L., Hsu, P-Y., Tung, Y-L., Ouyang, F-Y., & Kai, J-J. (2013). Enhanced photovoltaic performance and long-term stability of dye-sensitized solar cells by incorporating SiO₂ nanoparticles in binary ionic liquid electrolytes. Thin Solid Films, 529, 2-6. https://doi.org/10.1016/j.tsf.2012.06.025

Lee H-F, Wu J-L, Hsu P-Y, Tung Y-L, Ouyang F-Y, Kai J-J. Enhanced photovoltaic performance and long-term stability of dye-sensitized solar cells by incorporating SiO₂ nanoparticles in binary ionic liquid electrolytes. Thin Solid Films. 2013 Feb 1;529:2-6. https://doi.org/10.1016/j.tsf.2012.06.025

Lee, Hsin-Fang ; Wu, Jhih-Lin ; Hsu, Po-Ya ; Tung, Yung-Liang ; Ouyang, Fan-Yi ; Kai, Ji-Jung. / Enhanced photovoltaic performance and long-term stability of dye-sensitized solar cells by incorporating SiO₂ nanoparticles in binary ionic liquid electrolytes. In: Thin Solid Films. 2013 ; Vol. 529. pp. 2-6.