Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 1, Issue 4, Pages 944-950Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am9000375
Keywords
quasi-solid-state; dye-sensitized solar cell; electrolyte; triphenylamine; impedance; conductivity
Funding
- Programs of National 973 [2005CB623607]
- Tianjin HighTech [07ZCGHHZ00700]
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We report on the application of a poly(methyl acrylate)/poly(ethylene glycol)-based polymer gel electrolyte and triphenylamine-based metal-free organic dyes in quasi-solid-state dye-sensitized solar cells. The poly(methyl acrylate)/poly(ethylene glycol) hybrid is beneficial to the entrapment of a large volume of liquid electrolyte. At 25 degrees C, the ionic conductivity and the triiodide ionic diffusion constant of the as-prepared polymer gel electrolyte are 2.1 mS cm(-1) and 2.3 x 10(-6) cm(2) s(-1), respectively. The quasi-solid-state solar cell sensitized by triphenylamine-based dyes attains an overall energy conversion efficiency of 5.76% at a light intensity of 30 MW cm(-2). The presence of poly(ethylene glycol) in the electrolyte obviously increases the conductivity and energy conversion efficiency compared to that without poly(ethylene glycol).
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