کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7907694 | 1510759 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Increasing the optical absorption in a-Si thin films by embedding gold nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
The light conversion efficiency of traditional a-Si thin-film solar cells is limited by their low optical thicknesses, especially in the NIR. A possible approach to increase the light-trapping efficiency over the entire solar spectral range is to design solar-cell architectures which rely on the optical properties of plasmonic nanocomposite materials. We demonstrate that it is possible to have a controlled Gold nanoparticle optical absorption by varying the thickness of a covering a-Si thin-film. For thick a-Si films the Gold nanoparticle plasmon resonance vanishes likely due to the formation of a silicide. Optical absorption measurements as well as finite difference time-domain (FDTD) simulations were employed to determine the a-Si thickness-dependent optical absorption properties, which demonstrated a significantly increased optical absorption in a-Si.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 75, January 2018, Pages 204-210
Journal: Optical Materials - Volume 75, January 2018, Pages 204-210
نویسندگان
Gabriele Faraone, Ritika Modi, Sarita Marom, Alessandro Podestà , Marcel Di Vece,