کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6535228 | 49293 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fill factor improvement in PIN type hydrogenated amorphous silicon germanium thin film solar cells: Omnipotent N type μc-SiOx:H layer
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report PIN-type narrow-gap (Eg<1.5 eV) a-SiGe:H single-junction solar cells containing integrated n-type hydrogenated microcrystalline silicon oxide (μc-SiOx:H) layers that exhibit exceptionally high FFs in this paper. In addition to effectively enhancing the long-wavelength response of the a-SiGe:H single-junction solar cells, the integration of an n-type μc-SiOx:H layer with a small oxygen content to fine-tune the leakage current characteristics can enormously improve the FFs. This opens a new way to improve narrow-gap a-SiGe:H solar cells, in addition to traditional optimization strategies such as material quality optimization and band gap profiling. The highest FF of 70.62% achieved with the proposed approach was for PIN-type a-SiGe:H single-junction solar cells with an average band gap of 1.48 eV. The omnipotent properties of μc-SiOx:H layers, including optical enhancement of the long-wavelength response, independent control of longitudinal and lateral conductivity, effective elimination of the leakage current, and so on, make them likely to be extended to other types of solar cells such as microcrystalline silicon (μc-Si:H) or polycrystalline chalcopyrite Cu(In,Ga)Se2 (CIGS) cells, opening up new opportunities for acquiring solar cells with higher performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 140, September 2015, Pages 450-456
Journal: Solar Energy Materials and Solar Cells - Volume 140, September 2015, Pages 450-456
نویسندگان
Bofei Liu, Lisha Bai, Xiaodan Zhang, Changchun Wei, Qian Huang, Jian Sun, Huizhi Ren, Guofu Hou, Ying Zhao,