کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7908668 | 1510776 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance characteristics of guanine incorporated PVDF-HFP/PEO polymer blend electrolytes with binary iodide salts for dye-sensitized solar cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, we have investigated the influence of guanine as an organic dopant in dye-sensitized solar cell (DSSC) based on poly(vinylidinefluoride-co-hexafluoropropylene) (PVDF-HFP)/polyethylene oxide (PEO) polymer blend electrolyte along with binary iodide salts (potassium iodide (KI) and tetrabutylammonium iodide (TBAI)) and iodine (I2). The PVDF-HFP/KIÂ +Â TBAI/I2, PVDF-HFP/PEO/KIÂ +Â TBAI/I2 and guanine incorporated PVDF-HFP/PEO/KIÂ +Â TBAI/I2 electrolytes were prepared by solution casting technique using DMF as solvent. The PVDF-HFP/KIÂ +Â TBAI/I2 electrolyte showed an ionic conductivity value of 9.99Â ÃÂ 10â5Â Scmâ1, whereas, it was found to be increased to 4.53Â ÃÂ 10â5 Scmâ1 when PEO was blended with PVDF-HFP/KIÂ +Â TBAI/I2 electrolyte. However, a maximum ionic conductivity value of 3.67Â ÃÂ 10â4Â Scmâ1 was obtained for guanine incorporated PVDF-HFP/PEO/KIÂ +Â TBAI/I2 blend electrolyte. The photovoltaic properties of all these polymer electrolytes in DSSCs were characterized. As a consequence, the power conversion efficiency of the guanine incorporated PVDF-HFP/PEO/KIÂ +Â TBAI/I2 electrolyte based DSSC was significantly improved to 4.98% compared with PVDF-HFP/PEO/KIÂ +Â TBAI/I2 electrolyte based DSSC (2.46%). These results revealed that the guanine can be an effective organic dopant to enhance the performance of DSSCs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 58, August 2016, Pages 357-364
Journal: Optical Materials - Volume 58, August 2016, Pages 357-364
نویسندگان
R.A. Senthil, J. Theerthagiri, J. Madhavan, A.K. Arof,