Optical characteristics of silicon nanowires grown from tin catalyst layers on silicon coated glass

Handle URI:
http://hdl.handle.net/10754/599081
Title:
Optical characteristics of silicon nanowires grown from tin catalyst layers on silicon coated glass
Authors:
Ball, Jeremy; Centeno, Anthony; Mendis, Budhika G.; Reehal, H. S.; Alford, Neil
Abstract:
The optical characteristics of silicon nanowires grown on Si layers on glass have been modeled using the FDTD (Finite Difference Time Domain) technique and compared with experimental results. The wires were grown by the VLS (vapour-liquid-solid) method using Sn catalyst layers and exhibit a conical shape. The resulting measured and modeled absorption, reflectance and transmittance spectra have been investigated as a function of the thickness of the underlying Si layer and the initial catalyst layer, the latter having a strong influence on wire density. High levels of absorption (>90% in the visible wavelength range) and good agreement between the modeling and experiment have been observed when the nanowires have a relatively high density of ∼4 wires/μ m2. The experimental and modeled results diverge for samples with a lower density of wire growth. The results are discussed along with some implications for solar cell fabrication. © 2012 Optical Society of America.
Citation:
Ball J, Centeno A, Mendis BG, Reehal HS, Alford N (2012) Optical characteristics of silicon nanowires grown from tin catalyst layers on silicon coated glass. Optics Express 20: 20266. Available: http://dx.doi.org/10.1364/OE.20.020266.
Publisher:
The Optical Society
Journal:
Optics Express
Issue Date:
20-Aug-2012
DOI:
10.1364/OE.20.020266
PubMed ID:
23037078
Type:
Article
ISSN:
1094-4087
Sponsors:
J. Ball and H. S. Reehal thank the EPSRC and PV21 SUPERGEN consortium for support of this work. A Centeno and N Alford acknowledge the partial funding of this work by EPSRC and the King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorBall, Jeremyen
dc.contributor.authorCenteno, Anthonyen
dc.contributor.authorMendis, Budhika G.en
dc.contributor.authorReehal, H. S.en
dc.contributor.authorAlford, Neilen
dc.date.accessioned2016-02-25T13:52:31Zen
dc.date.available2016-02-25T13:52:31Zen
dc.date.issued2012-08-20en
dc.identifier.citationBall J, Centeno A, Mendis BG, Reehal HS, Alford N (2012) Optical characteristics of silicon nanowires grown from tin catalyst layers on silicon coated glass. Optics Express 20: 20266. Available: http://dx.doi.org/10.1364/OE.20.020266.en
dc.identifier.issn1094-4087en
dc.identifier.pmid23037078en
dc.identifier.doi10.1364/OE.20.020266en
dc.identifier.urihttp://hdl.handle.net/10754/599081en
dc.description.abstractThe optical characteristics of silicon nanowires grown on Si layers on glass have been modeled using the FDTD (Finite Difference Time Domain) technique and compared with experimental results. The wires were grown by the VLS (vapour-liquid-solid) method using Sn catalyst layers and exhibit a conical shape. The resulting measured and modeled absorption, reflectance and transmittance spectra have been investigated as a function of the thickness of the underlying Si layer and the initial catalyst layer, the latter having a strong influence on wire density. High levels of absorption (>90% in the visible wavelength range) and good agreement between the modeling and experiment have been observed when the nanowires have a relatively high density of ∼4 wires/μ m2. The experimental and modeled results diverge for samples with a lower density of wire growth. The results are discussed along with some implications for solar cell fabrication. © 2012 Optical Society of America.en
dc.description.sponsorshipJ. Ball and H. S. Reehal thank the EPSRC and PV21 SUPERGEN consortium for support of this work. A Centeno and N Alford acknowledge the partial funding of this work by EPSRC and the King Abdullah University of Science and Technology (KAUST).en
dc.publisherThe Optical Societyen
dc.titleOptical characteristics of silicon nanowires grown from tin catalyst layers on silicon coated glassen
dc.typeArticleen
dc.identifier.journalOptics Expressen
dc.contributor.institutionLondon South Bank University, London, United Kingdomen
dc.contributor.institutionMalaysia-Japan International Institute of Technology, Kuala Lumpur, Malaysiaen
dc.contributor.institutionUniversity of Durham, Durham, United Kingdomen
dc.contributor.institutionImperial College London, London, United Kingdomen
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