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Trialkylsulfonium and tetraalkylammonium cations-based ionicliquid electrolytes for quasi-solid-state dye-sensitized solar cells

IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi


Field	Value

Title	Trialkylsulfonium and tetraalkylammonium cations-based ionicliquid electrolytes for quasi-solid-state dye-sensitized solar cells

Creator	Lee, Chuan-Pei Peng, Jia-De Velayutham, D. Chang, Jeffrey Chen, Ping-Wei Suryanarayanan, V. Ho, Kuo-Chuan

Subject	Electrodics and Electrocatalysis Electroorganic

Description	Seven ionic liquids (ILs) based on asymmetric trialkyl sulfonium and tetraalkylammonium cations withbis(trifluoromethanesulfonyl)imide anion were prepared and characterized. Physico-chemical and elec-trochemical properties of these ionic liquids including density, decomposition temperature, viscosity andconductivity were determined. The photovoltaic parameters of dye-sensitized solar cells (DSSCs) con-taining these sulfonium and ammonium ion-based ILs were compared. Among these two groups of ILs,the DSSCs with sulfonium cation-based ILs show higher cell efficiencies than that of ammonium coun-terpart due to lower charge transfer resistance exhibited by the former when compared to the latter,as confirmed by electrochemical impedance spectroscopy (EIS). The best cell efficiency achieved in thiswork was 4.61%. Moreover, long-term durability of the quasi-solid-state DSSCs at 50◦C was investigated.

Publisher	Elsevier

Date	2013

Type	Article PeerReviewed

Format	application/pdf

Identifier	http://cecri.csircentral.net/3059/1/053-2013.pdf Lee, Chuan-Pei and Peng, Jia-De and Velayutham, D. and Chang, Jeffrey and Chen, Ping-Wei and Suryanarayanan, V. and Ho, Kuo-Chuan (2013) Trialkylsulfonium and tetraalkylammonium cations-based ionicliquid electrolytes for quasi-solid-state dye-sensitized solar cells. Electrochimica Acta, 114. pp. 303-308. ISSN 0013-4686

Relation	http://www.elsevier.com/locate/electacta http://cecri.csircentral.net/3059/