
SEMICONDUCTOR DEVICES
Tang Yehua, Zhou Chunlan, Wang Wenjing, Zhou Su, Zhao Yan, Zhao Lei, Li Hailing, Yan Baojun, Chen Jingwei, Fei Jianming and Cao Hongbin
Abstract: A silicon (Si) surface with a nanosized porous structure was formed via simple wet chemical etching catalyzed by gold (Au) nanoparticles on p-type Cz-Si (100). The average reflectivity from 300 to 1200 nm was less than 1.5%. Black Si solar cells were then fabricated using a conventional production process. The results reflected the output characteristics of the cells fabricated using different etching depths and emitter dopant profiles. Heavier dopants and shallower etching depths should be adopted to optimize the black Si solar cell output characteristics. The efficiency at the optimized etching time and dopant profile was 12.17%. However, surface passivation and electrode contact due to the nanosized porous surface structure are still obstacles to obtaining high conversion efficiency for the black Si solar cells.
Key words: black silicon, noble metal nanoparticles, catalysis, nanosized porous, solar cells
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Article views: 3564 Times PDF downloads: 2167 Times Cited by: 0 Times
Received: 20 August 2015 Revised: 27 December 2011 Online: Published: 01 June 2012
Citation: |
Tang Yehua, Zhou Chunlan, Wang Wenjing, Zhou Su, Zhao Yan, Zhao Lei, Li Hailing, Yan Baojun, Chen Jingwei, Fei Jianming, Cao Hongbin. Characterization of the nanosized porous structure of black Si solar cells fabricated via a screen printing process[J]. Journal of Semiconductors, 2012, 33(6): 064007. doi: 10.1088/1674-4926/33/6/064007
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Tang Y H, Zhou C L, Wang W J, Zhou S, Zhao Y, Zhao L, Li H L, Yan B J, Chen J W, Fei J M, Cao H B. Characterization of the nanosized porous structure of black Si solar cells fabricated via a screen printing process[J]. J. Semicond., 2012, 33(6): 064007. doi: 10.1088/1674-4926/33/6/064007.
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