Optimization of Pt loading on the counter electrode for efficient and bifacial dye-sensitized solar cells with polymer gel electrolyte

We examined the optimized conditions for preparing Pt/FTO glass counter electrodes (CEs) for the fabrication of highly efficient, bifacial, and quasi-solid-state dye-sensitized solar cells (QSS-DSSCs). The Pt/FTO glass CEs were prepared via thermal decomposition, and the molar concentration of the e...

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Bibliographic Details
Published inThe Korean journal of chemical engineering Vol. 39; no. 10; pp. 2817 - 2825
Main Authors Seo, Joo-Won, Jung, Sung-Mok, Kim, Yun-Jae, Kim, Jae-Yup
Format Journal Article
LanguageEnglish
Published New York Springer US 01.10.2022
Springer Nature B.V
한국화학공학회
Subjects
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Dye-sensitized solar cells
Dyes
Electrode polarization
Electrodes
Electrolytes
Electrolytic cells
Electronic
Energy conversion efficiency
Illumination
Incident light
Industrial Chemistry/Chemical Engineering
Inorganic
Materials (Organic
Materials Science
Optimization
Photovoltaic cells
Polymer gels
Polymers
Precursors
Thermal decomposition
Thin Films
화학공학
Bifacial Dye-sensitized Solar Cells
Pt Counter Electrode
Electrocatalytic Activity
Quasi-solid-state
Polymer Gel Electrolyte
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Summary:We examined the optimized conditions for preparing Pt/FTO glass counter electrodes (CEs) for the fabrication of highly efficient, bifacial, and quasi-solid-state dye-sensitized solar cells (QSS-DSSCs). The Pt/FTO glass CEs were prepared via thermal decomposition, and the molar concentration of the employed Pt precursor solution was controlled in the range of 5–40 mM. Impedance analysis and Tafel polarization curves revealed that electrocatalytic activity was optimized at 20 mM, whereas specular transmittance gradually decreased with increasing concentration of the precursor solution. When the CEs were applied to bifacial QSS-DSSCs employing a polymer gel electrolyte, the power conversion efficiency (PCE) was maximized at 20 mM under front illumination because the condition resulted in the highest electrocatalytic activity. Meanwhile, PCE under back illumination was optimized at 10 mM because of the larger incident light loss by the CEs at higher concentrations. Because the influence of the inferior performance under back illumination was more dominant in bifacial operations, the average PCE under front and back illumination was optimized at 10 mM.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-022-1170-8