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
![عکس صفحه اول مقاله: Graphene/porous silicon Schottky-junction solar cells Graphene/porous silicon Schottky-junction solar cells](/preview/png/5459193.png)
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,