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Novel chemically cross-linked solid state electrolyte for dye-sensitized solar cells
- Source :
-
Electrochimica Acta . Aug2010, Vol. 55 Issue 20, p5803-5807. 5p. - Publication Year :
- 2010
-
Abstract
- Abstract: Poly(vinylpyridine-co-ethylene glycol methyl ether methacrylate) (P(VP-co-MEOMA)) and α,ω-diiodo poly(ethylene oxide-co-propylene oxide) (I[(EO)0.8-co-(PO)0.2] y I) were synthesized and used as chemically cross-linked precursors of the electrolyte for dye-sensitized solar cells. Meanwhile, α-iodo poly(ethylene oxide-co-propylene oxide) methyl ether (CH3O[(EO)0.8-co-(PO)0.2] x I) was synthesized and added into the electrolyte as an internal plasticizer. Novel polymer electrolyte resulting from chemically cross-linked precursors was obtained by the quaterisation at 90°C for 30min. The characteristics for this kind of electrolyte were investigated by means of ionic conductivity, thermogravimetric and photocurrent–voltage. The ambient ionic conductivity was significantly enhanced to 2.3×10−4 Scm−1 after introducing plasticizer, modified-ionic liquid. The weight loss of the solid state electrolyte at 200°C was 1.8%, and its decomposition temperature was 287°C. Solid state dye-sensitized solar cell based on chemically cross-linked electrolyte presented an overall conversion efficiency of 2.35% under AM1.5 irradiation (100mWcm−2). The as-fabricated device maintained 88% of its initial performance at room temperature even without sealing for 30 days, showing a good stability. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 55
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 51922027
- Full Text :
- https://doi.org/10.1016/j.electacta.2010.05.026