کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1529419 995754 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of the polymer matrix on the efficiency of hybrid solar cells based on silicon nanowires
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Influence of the polymer matrix on the efficiency of hybrid solar cells based on silicon nanowires
چکیده انگلیسی

Poly (N-vinylcarbazole) (PVK):SiNWs and poly (2-methoxy, 5-(2-ethyl-hexyloxy)-p-phenyl vinylene) (MEH-PPV):SiNWs bulk-heterojunctions (BHJ) have been elaborated from blends of SiNWs and the polymer in solution from a common solvent. Optical properties of these nanocomposites have been investigated by UV–vis absorption and photoluminescence (PL) spectral measurements. We have studied the charge transfer between SiNWs and the two polymers using the photoluminescence quenching of PVK and MEH-PPV which is a convenient signature of the reduced radiative recombination of the generated charge pairs upon exciton dissociation. We found that PVK and SiNWs constitutes the better donor–acceptor system. In order to understand the difference between PVK:SiNWs or MEH-PPV:SiNWs behaviours, photoluminescence responses were correlated with the topography (SEM) of the thin films. The photovoltaic effect of ITO/PEDOT:PSS/SiNWs:PVK/Al and ITO/PEDOT:PSS/SiNWs:MEH-PPV/Al structures was studied by current–voltage (I–V) measurements in dark and under illumination and interpreted on the basis of the charge transfer differences resulting from the morphologies.

Figure optionsDownload as PowerPoint slideHighlights
► Hybrid solar cells based on silicon nanowires have been fabricated.
► The relation between the morphology of the composite thin films and the charge transfer between the polymer matrices and SiNWs has been examined.
► We have investigated the effect of the polymer matrix on the photovoltaic characteristics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 177, Issue 2, 15 February 2012, Pages 173–179
نویسندگان
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