کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5459193 | 1516179 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Graphene/porous silicon Schottky-junction solar cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Porous silicon (PSi) is highly attractive for the solar cell applications due to its unique properties such as efficient antireflection, band gap widening, broad range of optical absorption/transmission, and surface passivation/texturization effect. We first report PSi Schottky-type heterojunction solar cells by employing graphene transparent conductive electrodes doped with silver nanowires (Ag NWs). The PSi is formed based on metal-assisted chemical etching process, and its porosity is controlled by varying the deposition time (td) of Ag nanoparticles used for the etching. The Ag NWs-doped graphene/PSi solar cells show a maximum power-conversion efficiency (PCE) of 4.03% at td = 3 s/concentration (nA) of Ag NWs = 0.1 wt percent (wt%). As td increases, the diode ideality factor and the light absorption increase. As nA increases, the work function (thus the open circuit voltage) and the transmittance decrease whilst the light absorption increases/the sheet resistance decreases. These trade-offs explain why the PCE is maximized at td = 3 s/nA = 0.1 wt%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 715, 25 August 2017, Pages 291-296
Journal: Journal of Alloys and Compounds - Volume 715, 25 August 2017, Pages 291-296
نویسندگان
Dong Hee Shin, Ju Hwan Kim, Jung Hyun Kim, Chan Wook Jang, Sang Woo Seo, Ha Seung Lee, Sung Kim, Suk-Ho Choi,