Incorporation of a self-aligned selective emitter to realize highly efficient (12.8%) Si nanowire solar cells
作者： Han-Don Um , Kwang-Tae Park , Jin-Young Jung , Xiaopeng Li , Keya Zhou
DOI: 10.1039/C4NR00455H
关键词:
摘要: Formation of a selective emitter in crystalline silicon solar cells improves photovoltaic conversion efficiency by decoupling regions for light absorption (moderately doped) and metallization (degenerately doped). However, use nanowire (Si NW) is technologically challenging because difficulties forming robust Ohmic contacts that interface directly with the top-ends nanowires. Here we describe self-aligned successfully integrated into an antireflective Si NW cell. By one-step metal-assisted chemical etching, arrays formed only at light-absorbing areas between top-metal grids while selectively retaining contact underneath metal grids. We observed remarkable ∼40% enhancement blue responses internal quantum efficiency, corresponding to 12.8% comparison 8.05% conventional
rsc.org
harvard.edu
sci-hub.se 参考文章(32)
Dinesh Kumar, Sanjay K Srivastava, PK Singh, M Husain, Vikram Kumar, None, Fabrication of silicon nanowire arrays based solar cell with improved performance Solar Energy Materials and Solar Cells. ,vol. 95, pp. 215- 218 ,(2011) , 10.1016/J.SOLMAT.2010.04.024
Jianhua Zhao, Aihua Wang, Martin A. Green, Francesca Ferrazza, 19.8% efficient “honeycomb” textured multicrystalline and 24.4% monocrystalline silicon solar cells Applied Physics Letters. ,vol. 73, pp. 1991- 1993 ,(1998) , 10.1063/1.122345
K. Misiakos, F.A. Lindholm, Toward a systematic design theory for silicon solar cells using optimization techniques Solar Cells. ,vol. 17, pp. 29- 52 ,(1986) , 10.1016/0379-6787(86)90057-8
Han-Don Um, Jin-Young Jung, Hong-Seok Seo, Kwang-Tae Park, Sang-Won Jee, SA Moiz, Jung-Ho Lee, None, Silicon Nanowire Array Solar Cell Prepared by Metal-Induced Electroless Etching with a Novel Processing Technology Japanese Journal of Applied Physics. ,vol. 49, pp. 04DN02- ,(2010) , 10.1143/JJAP.49.04DN02
Erik Garnett, Peidong Yang, Light Trapping in Silicon Nanowire Solar Cells Nano Letters. ,vol. 10, pp. 1082- 1087 ,(2010) , 10.1021/NL100161Z
S. Jana, S. Mondal, S. R. Bhattacharyya, Wetting and surface energy of vertically aligned silicon nanowires. Journal of Nanoscience and Nanotechnology. ,vol. 13, pp. 3983- 3989 ,(2013) , 10.1166/JNN.2013.7210
Dong Rip Kim, Chi Hwan Lee, Pratap Mahesh Rao, In Sun Cho, Xiaolin Zheng, Hybrid Si Microwire and Planar Solar Cells: Passivation and Characterization Nano Letters. ,vol. 11, pp. 2704- 2708 ,(2011) , 10.1021/NL2009636
Yuerui Lu, Amit Lal, High-Efficiency Ordered Silicon Nano-Conical-Frustum Array Solar Cells by Self-Powered Parallel Electron Lithography Nano Letters. ,vol. 10, pp. 4651- 4656 ,(2010) , 10.1021/NL102867A
Bozhi Tian, Xiaolin Zheng, Thomas J. Kempa, Ying Fang, Nanfang Yu, Guihua Yu, Jinlin Huang, Charles M. Lieber, Coaxial silicon nanowires as solar cells and nanoelectronic power sources Nature. ,vol. 449, pp. 885- 889 ,(2007) , 10.1038/NATURE06181
Oki Gunawan, Supratik Guha, Characteristics of vapor–liquid–solid grown silicon nanowire solar cells Solar Energy Materials and Solar Cells. ,vol. 93, pp. 1388- 1393 ,(2009) , 10.1016/J.SOLMAT.2009.02.024