کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6765765 | 512443 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A monolithic all-silicon multi-junction solar device for direct water splitting
ترجمه فارسی عنوان
یک دستگاه خورشیدی چند منظوره تمام سیلیکون یکپارچه برای تقسیم آب مستقیم
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
We present a silicon-based, monolithic multi-junction solar device that is suitable for the sustainable and reliable production of hydrogen. It is based on an interdigitated back-contact (IBC) solar cell which is modified, so that the p- and n-regions are connected in a combination of series and parallel connections, which triples the photovoltage compared to a single-junction cell. Thus, it provides a potential larger than the water redox potential of 1.23Â V plus over-potentials at the electrodes. We fabricated a working demonstrator with an open-circuit voltage of 1.81Â V and a short-circuit current density of 12.2Â mA/cm2. The processing can be integrated in an existing IBC cell line with one additional fabrication step and a modified contact layout. Coupled to a 1Â M H2SO4 electrolysis system, with Pt and RuO2 electrodes, our device shows a solar-to-hydrogen conversion efficiency of 8%. In contrast to existing solutions, which are based on external series connections, it does not suffer from ohmic losses and holds the potential to reach 16.6%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 94, August 2016, Pages 90-95
Journal: Renewable Energy - Volume 94, August 2016, Pages 90-95
نویسندگان
S. Nordmann, B. Berghoff, A. Hessel, N. Wilck, B. Osullivan, M. Debucquoy, J. John, S. Starschich, J. Knoch,