Quasi-Solid-State Dye-Sensitized Solar Cells for Efficient and Stable Power Generation under Room Light Conditions

Shanmuganathan Venkatesan, I. Ping Liu, Chiao Wei Li, Chih Mei Tseng-Shan, Yuh-Lang Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Highly efficient quasi-solid-state dye-sensitized solar cells (QS-DSSCs) are fabricated using nanocomposite gel electrolytes and applied under room light conditions (200 lx). To obtain high energy conversion efficiency in QS-DSSCs, the important components of the DSSC are systematically optimized based on their performance in liquid-state DSSCs. It shows that the liquid cell using the 3-methoxypropionitrile-based cobalt electrolyte has higher efficiency (18.91%) than the cell using the acetonitrile-based electrolyte (17.82%) under 200 lx illumination due to the higher charge recombination resistance at the photoelectrode/electrolyte interface for the 3-methoxypropionitrile system. Poly(vinylidene fluoride-co-hexafluoropropylene) is utilized as the gelator of the liquid electrolytes to prepare polymer gel electrolytes. Furthermore, to improve the performance of the QS-DSSCs, different metal oxide nanoparticles are introduced as nanofillers of the polymer gel electrolytes. It shows that the zinc oxide nanofillers have a superior performance in increasing the cell efficiency and the energy conversion efficiencies of the QS-DSSCs are higher than those of the corresponding liquid cells. By regulating the concentration of the zinc oxide nanofillers, the efficiency of the 3-methoxypropionitrile based QS-DSSC can achieve a value of 20.11% under 200 lx illumination. This QS-DSSC has a long-term stability at 35 °C.

Original languageEnglish
Pages (from-to)7403-7411
Number of pages9
JournalACS Sustainable Chemistry and Engineering
Volume7
Issue number7
DOIs
Publication statusPublished - 2019 Apr 1

Fingerprint

power generation
electrolyte
Electrolytes
Power generation
dye
Zinc Oxide
Gels
gel
Liquids
Zinc oxide
Energy conversion
Conversion efficiency
liquid
Polymers
polymer
Lighting
zinc
oxide
Cobalt
solid state

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment

Cite this

Venkatesan, Shanmuganathan ; Liu, I. Ping ; Li, Chiao Wei ; Tseng-Shan, Chih Mei ; Lee, Yuh-Lang. / Quasi-Solid-State Dye-Sensitized Solar Cells for Efficient and Stable Power Generation under Room Light Conditions. In: ACS Sustainable Chemistry and Engineering. 2019 ; Vol. 7, No. 7. pp. 7403-7411.
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Quasi-Solid-State Dye-Sensitized Solar Cells for Efficient and Stable Power Generation under Room Light Conditions. / Venkatesan, Shanmuganathan; Liu, I. Ping; Li, Chiao Wei; Tseng-Shan, Chih Mei; Lee, Yuh-Lang.

In: ACS Sustainable Chemistry and Engineering, Vol. 7, No. 7, 01.04.2019, p. 7403-7411.

Research output: Contribution to journalArticle

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