Please use this identifier to cite or link to this item: https://doi.org/10.1002/pssc.201200030
Title: Hierarchical nano/microstructures on silicon surface with ultra low reflectance for photovoltaic applications
Authors: Tan, L.T.
Lim, A.H.
Chee, Z.Y.
Wong, Y.L.
Huang, Y.C.
Ong, H.W.
Wee, Q.X.
Ho, J.W.
Steeman, R.
Chua, S.J. 
Keywords: Electroless etching
Nanowire
Photovoltaic
Silicon
Issue Date: Oct-2012
Source: Tan, L.T., Lim, A.H., Chee, Z.Y., Wong, Y.L., Huang, Y.C., Ong, H.W., Wee, Q.X., Ho, J.W., Steeman, R., Chua, S.J. (2012-10). Hierarchical nano/microstructures on silicon surface with ultra low reflectance for photovoltaic applications. Physica Status Solidi (C) Current Topics in Solid State Physics 9 (10-11) : 1873-1877. ScholarBank@NUS Repository. https://doi.org/10.1002/pssc.201200030
Abstract: Silicon nanowires (SiNWs) arrays prepared by silver-assisted chemical etching show ultra-low reflectance over the wide spectral bandwidth from 300 to 1000 nm. In this work, SiNWs arrays were prepared by using solar-grade multi-crystalline (mc-Si-pn) and single crystalline (sc-Si-pn) silicon(100) wafers. Reflectance is significantly decreased over the visible-light spectral range with increase in the length of nanowires by almost 5 and 3 times for multi-crystalline and single crystalline Si samples, respectively. However it is noted that there is no further reduction in the reflectance when the length of nanowires is beyond 400 nm for mc-Si-pn and 300 nm for sc-Si-pn samples. Also, the reflectance data and scanning electron microscope (SEM) images indicate that the density of nanowires network does not play a dominant role in improving the light absorption as compared to the length of nanowires. Since electroless etching can enable simple, wafer-scale fabrication of SiNWs without the need of doping, SiNWs arrays show great promise for solar cells in addressing its efficiency and cost issue. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Physica Status Solidi (C) Current Topics in Solid State Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/56183
ISSN: 18626351
DOI: 10.1002/pssc.201200030
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

33
checked on Dec 11, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.