کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1309244 975199 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In situ micro- and macro-Raman investigation of the redox couple behavior in DSSCS
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
In situ micro- and macro-Raman investigation of the redox couple behavior in DSSCS
چکیده انگلیسی

Solar cells based on nanocrystalline TiO2 sensitized by dyes that contain poly-pyridyne rings have been examined by in situ micro- and macro-Raman spectroscopy under positive and negative bias. Four modes in the low frequency range appear for nearly short-circuit conditions and are attributed to the vibrations of triiodide, bound on the oxidized form of the dye. The intensity and frequency of these modes depend on the applied potential and their behavior is correlated with characteristic regions of the current–potential curves. Our results are supported by polarized Raman experiments and basic theoretical simulations.

Solar cells based on nanocrystalline TiO2 sensitized by dyes that contain pyridine rings have been examined by in situ micro- and macro-Raman spectroscopy under positive and negative bias. Four modes appear for nearly short-circuit conditions and are attributed to the vibrations of triiodide, strongly bound on the oxidized form of the dye. Results are supported by theoretical calculations.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 361, Issue 3, 15 February 2008, Pages 761–768
نویسندگان
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