The dye sensitized solar cell stability and performance study using different electrolytes

Sailaja Radhakrishnan, Lakshmi V. Munukutla, Aung Htun, Arunachala Mada Kannan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The overarching goal of Dye Sensitized Solar Cells (DSSCs) is to improve photovoltaic performance and their long-term stability for use in practical applications because of their simple fabrication technology at a reasonable cost. The focus of this paper is to achieve cell stability and also to improve solar energy conversion efficiency experimenting with different electrolytes. The electrolyte's role is critical to sustain the DSS cell performance over time to instill cell stability. Four different electrolytes, Iodolyte R-150, AN-50, PN-50 and MPN-100, are experimented in this work for fabricating the dye-sensitized solar cells for studying both the stability and efficiency of the DSSCs. The electrolyte selection was made using the following key electrolyte parameters; lower viscosity for easier injection into the cell, lower vapor pressure and higher boiling point to minimize electrolyte evaporation, wide redox window to generate sufficient donating electrons to the dye, lower cost and non-toxicity. Electrolytes with higher concentration of Iodolyte were chosen for this study to widen redox potential window. These are Iodide based redox electrolytes and are made with 100 mM of tri-iodide in 3-methoxypropionitrile. The results of this investigation revealed that the cell with Iodolyte R-150 electrolyte achieved improved performance having an efficiency of 10.2% when compared to the reference cell efficiency of 8.4% with Iodolyte R-50. These cells were stabilized over a time of 4 weeks. The fill factor of the cell changed about 10% and the internal resistance decreased from 6.7 to 4.3 Ω. The results of this experiment demonstrated reduced internal resistance, and improved fill factor contributed to higher cell efficiency and stability. The results of the work presented in this paper support the argument that electrolytes with higher Iodolyte concentration can enhance the cell efficiency and stability along with scaling down of the cell size.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium Proceedings
Pages119-125
Number of pages7
Volume1322
DOIs
StatePublished - 2011
Event2011 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 25 2011Apr 29 2011

Other

Other2011 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/25/114/29/11

Fingerprint

Electrolytes
solar cells
dyes
electrolytes
cells
Iodides
iodides
Dye-sensitized solar cells
solar energy conversion
Boiling point
energy conversion efficiency
Vapor pressure
Energy conversion
Solar energy
Conversion efficiency
Costs
boiling
vapor pressure
Evaporation
Coloring Agents

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Radhakrishnan, S., Munukutla, L. V., Htun, A., & Mada Kannan, A. (2011). The dye sensitized solar cell stability and performance study using different electrolytes. In Materials Research Society Symposium Proceedings (Vol. 1322, pp. 119-125) https://doi.org/10.1557/opl.2011.1300

The dye sensitized solar cell stability and performance study using different electrolytes. / Radhakrishnan, Sailaja; Munukutla, Lakshmi V.; Htun, Aung; Mada Kannan, Arunachala.

Materials Research Society Symposium Proceedings. Vol. 1322 2011. p. 119-125.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Radhakrishnan, S, Munukutla, LV, Htun, A & Mada Kannan, A 2011, The dye sensitized solar cell stability and performance study using different electrolytes. in Materials Research Society Symposium Proceedings. vol. 1322, pp. 119-125, 2011 MRS Spring Meeting, San Francisco, CA, United States, 4/25/11. https://doi.org/10.1557/opl.2011.1300
Radhakrishnan S, Munukutla LV, Htun A, Mada Kannan A. The dye sensitized solar cell stability and performance study using different electrolytes. In Materials Research Society Symposium Proceedings. Vol. 1322. 2011. p. 119-125 https://doi.org/10.1557/opl.2011.1300
Radhakrishnan, Sailaja ; Munukutla, Lakshmi V. ; Htun, Aung ; Mada Kannan, Arunachala. / The dye sensitized solar cell stability and performance study using different electrolytes. Materials Research Society Symposium Proceedings. Vol. 1322 2011. pp. 119-125
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