Polyiodide solid-state dye-sensitized solar cell produced from a standard liquid I−/I3− electrolyte

Solid-state dye-sensitized solar cells were obtained by drying a standard I−/I3− liquid-electrolyte cell in ambient conditions. Slow evaporation of the organic solvent allows the formation of a polyiodide (In−, n ≥ 3) network that bridges the counter electrode and dye/TiO2 layer. The unsealed polyio...

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Bibliographic Details
Published inJournal of materials chemistry. A, Materials for energy and sustainability Vol. 8; no. 38; pp. 19991 - 19999
Main Authors Tanaka, Ellie, Robertson, Neil
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 01.01.2020
Subjects
Bridges
Drying
Dye-sensitized solar cells
Dyes
Electrolytes
Electrolytic cells
Energy conversion efficiency
Evaporation
Fabrication
Photovoltaic cells
Precursors
Solar cells
Solid state
Titanium dioxide
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Summary:Solid-state dye-sensitized solar cells were obtained by drying a standard I−/I3− liquid-electrolyte cell in ambient conditions. Slow evaporation of the organic solvent allows the formation of a polyiodide (In−, n ≥ 3) network that bridges the counter electrode and dye/TiO2 layer. The unsealed polyiodide solar cell (Ply-I DSSC) with 5T dye reaches a maximum of 5.2% peak power conversion efficiency (peak PCE), similar to the precursor liquid-state solar cell (Liq-I DSSC) of maximum PCE = 5.7%. Once the performance of the Ply-I DSSCs reaches a stabilization (stb.) point (maximum stb. PCE 5.0%), no loss in performance is displayed under dark storage in ambient air without any encapsulation for a period of around 10 months.
ISSN:2050-7488
2050-7496
DOI:10.1039/d0ta07377f