The 18.3% Silicon Solar Cells with Nano-Structured Surface and Rear Emitter
Jun-Na Zhang, Lei Wang** , Zhun Dai, Xun Tang, You-Bo Liu, De-Ren Yang**
State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027
Abstract ：A nano-structured surface is formed on the pyramid structure of n-type silicon solar cells by size-controlled silver nano-particle assisted etching. Such a nano-structure creates a front average weighted reflectance of less than 2.5% in the 300–1200 nm range due to the broadband reflection suppression. The sodium hydroxide is used to obtain the low-area surface by post-etching the nano-structure, thus the severe carrier recombination associated with the nano-structured surface could be reduced. After emitter forming, screen printing and firing by means of the industrial fabrication protocol, an 18.3%-efficient nano-structured silicon solar cell with rear emitter is fabricated. The process of fabricating the solar cells matches well with industrial manufacture and shows promising prospects.
收稿日期: 2016-11-09
出版日期: 2017-01-25
:
88.40.jj
(Silicon solar cells)
81.65.Cf
(Surface cleaning, etching, patterning)
82.45.Yz
(Nanostructured materials in electrochemistry)
84.60.Jt
(Photoelectric conversion)
[1] Cheng H H, Chang Y Y, Chu J Y et al 2012 Appl. Phys. Lett. 101 141113 [2] Singh P K, Kumar R, Lal M et al 2001 Sol. Energy Mater. Sol. Cells 70 103 [3] Dimitrov D Z and Du C H 2013 Appl. Surf. Sci. 266 1 [4] Khuat V, Ma Y C, Si J H et al 2014 Chin. Phys. Lett. 31 037901 [5] Li T, Zhou C L, Wang W J 2016 Chin. Phys. Lett. 33 038801 [6] Otto M, Kroll M, Käsebier T et al 2010 Adv. Mater. 22 5035 [7] Marrero N, Guerrero L R, González D B et al 2009 Thin Solid Films 517 2648 [8] Ge J, Yin W J, Long Y F et al 2007 Chin. Phys. Lett. 24 1361 [9] Li X and Bohn P W 2000 Appl. Phys. Lett. 77 2572 [10] Peng K and Zhu J 2004 Electrochim. Acta 49 2563 [11] Gu X, Yu X G, Liu T et al 2011 Nanotechnology 22 025703 [12] Chartier C, Bastide S and Lévy-Clément C 2008 Electrochim. Acta 53 5509 [13] Srivastava S K, Kumar D, Vandana et al 2012 Sol. Energy Mater. Sol. Cells 100 33 [14] Xiao J F, Wang L, Li X et al 2010 Appl. Surf. Sci. 257 472 [15] Li D, Wang L, Li D S et al 2013 Appl. Surf. Sci. 264 621 [16] Oh J, Yuan H C and Branz H M 2012 Nat. Nanotechnol. 7 743 [17] Zheng X, Yu X G and Yang D R 2013 Acta Phys. Sin. 62 198801 (in Chinese) [18] Cuevas A, Kerr M J, Samundsett C et al 2002 Appl. Phys. Lett. 81 4952 [19] Schmidt J, Bothe K, Bock R et al 2007 22nd European Photovoltaic Solar Energy Conference (Milan, Italy 3–7 September 2007) p 998 [20] Fertig F, Wöhrle N, Greulich J et al 2016 Prog. Photovoltaics 24 818 [21] Liu T, Li D, Yang D et al 2011 Mater. Lett. 65 628 [22] Branz H M, Yost V E, Ward S et al 2009 Appl. Phys. Lett. 94 231121
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
KIM Un-Chol, JIANG Xiao-Qing. Numerical Analysis of Efficiency Enhancement in Plasmonic Thin-Film Solar Cells by Using the SILVACO TCAD Simulator
[9]
MA Xun;LIU Zu-Ming;QU Sheng;WANG Shu-Rong;HAO Rui-Ting;LIAO Hua
. A New Method to Measure Trap Characteristics of Silicon Solar Cells
2017, Vol. 34 
