کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1674491 1008964 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performance of dye-sensitized solar cells based on Ionic liquids: Effect of temperature and iodine concentration
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Performance of dye-sensitized solar cells based on Ionic liquids: Effect of temperature and iodine concentration
چکیده انگلیسی

The performance of dye-sensitized solar cells, based on pure and binary ionic liquid electrolyte with different iodine concentrations, have been evaluated under 1 sun illumination and different cells temperature between 5 and 55 °C. At lower temperatures a short-circuit current (JSC) may be limited by the diffusion of tri-iodide. In this situation JSC increases with increasing temperature, while at higher temperatures the JSC decreases due to more pronounced recombinations. We find a maximum for JSC at intermediate temperatures. This maximum shifts to lower temperatures by increasing iodine concentration. At a certain temperature different iodine concentration is optimal for different ionic liquids employed in the electrolyte. The open circuit voltage monotonically decreases with temperature while the conversion efficiency is basically dominated by temperature dependence of JSC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 516, Issue 20, 30 August 2008, Pages 7155–7159
نویسندگان
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