期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 715, 期 -, 页码 291-296出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.05.001
关键词
Porous Si; Graphene; Solar cell; Schottky junction; Doping; Ag nanowire
资金
- National Research Foundation of Korea (NRF) grant - Ministry of Science, ICT and Future Planning [NRF-2017R1A2B3006054]
- National Research Foundation of Korea [22A20130000025, 2017R1A2B3006054] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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 (t(d)) 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 t(d) = 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 t(d) = 3 s/nA = 0.1 wt%. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据