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Copper-based dye-sensitized solar cells with quasi-solid nano cellulose composite electrolytes
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology.
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2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 61, 56571-56579 p.Article in journal (Refereed) PublishedText
Abstract [en]

The study presented describes the preparation of solvent-free nano composite gel electrolytes in combination with copper(I)-based dye-sensitized solar cells (DSSCs). The electrolytes comprise poly(ethylene oxide) (PEO) and cellulose nano crystals (CNCs) and an I-3(-)/I- redox shuttle. The quasi-solid-state DSSCs show increased photoconversion performance with increased amount of CNC in the electrolyte. DSSC performances measured on the day that the devices are fabricated show that when the electrolyte is composed of 80% CNC, a cell efficiency of 1.09% is reached compared to 1.16% using a standard liquid I-3(-)/I- electrolyte. DSSCs containing the nano composites and the copper(I)-based dye show robust stability over time, and after 60 days, DSSCs with the PEO/CNC/I-3(-)/I- electrolyte outperform those containing the liquid electrolyte.

Place, publisher, year, edition, pages
2016. Vol. 6, no 61, 56571-56579 p.
Keyword [en]
Cellulose, Cellulose derivatives, Copper, Electrolytes, Ethylene, Nanocomposites, Polyethylene oxides, Solar cells, Solid electrolytes, Cell efficiency, Cellulose nano-crystals, Liquid electrolytes, Photoconversion, Poly (ethylene oxide) (PEO), Quasi-solid state, Robust stability, Standard liquids
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-189837DOI: 10.1039/c6ra06546eISI: 000378275400107ScopusID: 2-s2.0-84975089471OAI: diva2:949266
EU, European Research Council, 267816 LiLo

QC 20160718

Available from: 2016-07-18 Created: 2016-07-15 Last updated: 2016-07-18Bibliographically approved

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Boujemaoui, AssyaMalmström, Eva
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