Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99618
Title: Morphology-tunable assembly of periodically aligned Si nanowire and radial pn junction arrays for solar cell applications
Authors: Li, Xiaocheng
Liang, Kun
Tay, Beng Kang
Teo, Edwin Hang Tong
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Li, X., Liang, K., Tay, B. K., & Teo, E. H. T. (2012). Morphology-tunable assembly of periodically aligned Si nanowire and radial pn junction arrays for solar cell applications. Applied Surface Science, 258(17), 6169–6176.
Series/Report no.: Applied surface science
Abstract: Large-area periodically aligned Si nanowire (PASiNW) arrays have been fabricated on Si substrates via a templated catalytic chemical etching process. The diameter, length, packing density, and even the shape of Si nanowires (SiNWs) could be precisely controlled and tuned. A local coupling redox mechanism involving the reduction of H2O2 on silver particles and the dissolution of Si is responsible for formation of SiNWs. With the as-prepared SiNWs as templates, three kinds of PASiNW radial pn junction structures were fabricated on Si substrates via a solid-state phosphorous diffusion strategy and their applications in solar cells were also explored. The PASiNW radial pn junction-based solar cell with big diameter and interspace shows the highest power conversion efficiency (PCE) of 4.10% among the three kinds of devices. Further optimization, including surface passivation and electrode contact, is still needed for the higher efficiency PASiNW radial pn junction-based solar cells in the future.
URI: https://hdl.handle.net/10356/99618
http://hdl.handle.net/10220/11025
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2012.02.091
Rights: © 2012 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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