کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
80595 | 49390 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Absorption and transport via tunneling in quantum-well solar cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Absorption and tunneling are two major physical processes contributing to photocurrent generation in solar cells. Many new “ultra-high efficiency” PV devices utilize quantum effects to enhance their efficiency. This paper calculates the impact of quantum effects on the absorption and tunneling current as a function of electric fields and light trapping ratios. Results show that increasing electric fields enhance tunneling of photogenerated carriers, which dominates over the opposing effect of reduced absorption. Also, the significant advantage of light enhancement over increasing the number of quantum wells (QWs) has been demonstrated. These calculations allow optimizing the tunneling photocurrents in design of QW solar cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 90, Issues 18–19, 23 November 2006, Pages 3464–3470
Journal: Solar Energy Materials and Solar Cells - Volume 90, Issues 18–19, 23 November 2006, Pages 3464–3470
نویسندگان
Omkar Jani, Christiana Honsberg,