Strongly enhanced light trapping in a two-dimensional silicon nanowire random fractal array

Barbara Fazio; Pietro Artoni; Maria Antonia Iatì; Cristiano D'Andrea; Maria Josè Lo Faro; Salvatore Del Sorbo; Stefano Pirotta; Pietro Giuseppe Gucciardi; Paolo Musumeci; Cirino Salvatore Vasi; Rosalba Saija; Matteo Galli; Francesco Priolo; Alessia Irrera

doi:10.1038/lsa.2016.62

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Strongly enhanced light trapping in a two-dimensional silicon nanowire random fractal array

Original Articles

- Strongly enhanced light trapping in a two-dimensional silicon nanowire random fractal array
- Light: Science & Applications Vol. 5, Issue 2, (2016)
- Affiliations：
  
  1.CNR-IPCF, Istituto per i Processi Chimico Fisici, 98158 Messina, Italy
  2.Dipartimento di Fisica e Astronomia, Università di Catania, 95123 Catania, Italy
  3.CNR-MATIS IMM, Istituto per la Microelettronica e Microsistemi, 95123 Catania, Italy
  4.Dipartimento di Fisica, Università degli Studi di Pavia, 27100 Pavia, Italy
  5.Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università di Messina, 98166 Messina, Italy
  6.Scuola Superiore di Catania, Università di Catania, via Valdisavoia, 9, 95123 Catania, Italy
- Author bio：
  
  B Fazio, Email: fazio@ipcf.cnr.it
  A Irrera, Email: irrera@ipcf.cnr.it
- Funds：
- DOI：10.1038/lsa.2016.62
  CLC：
- Published：2016-06，
  
  Published Online：07 January 2016，
  
  Received：02 August 2015，
  
  Revised：07 December 2015，
  
  Accepted：03 January 2016
- Accepted：
Scan QR Code
Fazio, B. et al. Strongly enhanced light trapping in a two-dimensional silicon nanowire random fractal array. Light: Science & Applications, 5, e16062 (2016).
DOI：

Fazio, B. et al. Strongly enhanced light trapping in a two-dimensional silicon nanowire random fractal array. Light: Science & Applications, 5, e16062 (2016). DOI： 10.1038/lsa.2016.62.

摘要

Abstract

We report on the unconventional optical properties exhibited by a two-dimensional array of thin Si nanowires arranged in a random fractal geometry and fabricated using an inexpensive

fast and maskless process compatible with Si technology. The structure allows for a high light-trapping efficiency across the entire visible range

attaining total reflectance values as low as 0.1% when the wavelength in the medium matches the length scale of maximum heterogeneity in the system. We show that the random fractal structure of our nanowire array is responsible for a strong in-plane multiple scattering

which is related to the material refractive index fluctuations and leads to a greatly enhanced Raman scattering and a bright photoluminescence. These strong emissions are correlated on all length scales according to the refractive index fluctuations. The relevance and the perspectives of the reported results are discussed as promising for Si-based photovoltaic and photonic applications.

关键词

Keywords

light trappingmultiple scatteringRaman enhancementrandom fractalsilicon nanowires

references

Wiersma DS. Disordered photonics.Nat Photon2013;7: 188–196..

Brongersma ML, Cui Y, Fan SH. Light management for photovoltaics using high-index nanostructures.Nat Mater2014;13: 451–460..

Polman A, Atwater HA. Photonic design principles for ultrahigh-efficiency photovoltaics.Nat Mater2012;11: 174–177..

Atwater HA, Polman A. Plasmonics for improved photovoltaic devices.Nat Mater2010;9: 205–213..

Huang YF, Chattopadhyay S, Jen YJ, Peng CY, Liu TA,et al. Improved broadband and quasi-omnidirectional anti-reflection properties with biomimetic silicon nanostructures.Nat Nanotechnol2007;2: 770–774..

Vynck K, Burresi M, Riboli F, Wiersma DS. Photon management in two-dimensional disordered media.Nat Mater2012;11: 1017–1022..

Riboli F, Caselli N, Vignolini S, Intonti F, Vynck K,et al. Engineering of light confinement in strongly scattering disordered media.Nat Mater2014;13: 720–725..

Yablonovitch E. Statistical ray optics.J Opt Soc Am1982;72: 899–907..

Callahan DM, Munday JN, Atwater HA. Solar cell light trapping beyond the ray optic limit.Nano Lett2012;12: 214–218..

Yu ZF, Raman A, Fan SH. Fundamental limit of nanophotonic light trapping in solar cells.Proc Natl Acad Sci USA2010;12: 17491–17496..

Svensson T, Vynck K, Grisi M, Savo R, Burresi Met al. Holey random walks: optics of heterogeneous turbid composites.Phys Rev E2013;87: 022120..

Shalaev VM, Moskovits M, Golubentsev AA, John S. Scattering and localization of light on fractals.Physica A1992;191: 352–357..

Podolskiy VA, Shalaev VM. Giant optical responses in microcavity-fractal composites.Laser Phys2001;11: 26–30..

Krachmalnicoff V, Castanié E, De Wilde Y, Carminati R. Fluctuations of the local density of states probe localized surface plasmons on disordered metal films.Phys Rev Lett2010;105: 183901..

Zhu LH, Shao MR, Peng RW, Fan RH, Huang XRet al. Broadband absorption and efficiency enhancement of an ultra-thin silicon solar cell with a plasmonic fractal.Opt Express2013;21: A313–A323..

Albella P, Poyli MA, Schmidt MK, Maier SA, Moreno Fet al. Low-loss electric and magnetic field-enhanced spectroscopy with subwavelength silicon dimers.J Phys Chem C2013;117: 13573–13584..

Muskens OL, Rivas JG, Algra RE, Bakkers EPAM, Lagendijk A. Design of light scattering in nanowire materials for photovoltaic applications.Nano Lett2008;8: 2638–2642..

Diedenhofen SL, Janssen OTA, Grzela G, Bakkers EPAM, Rivas JG. Strong geometrical dependence of the absorption of light in arrays of semiconductor nanowires.ACS Nano2011;5: 2316–2323..

Strudley T, Zehender T, Blejean C, Bakkers EPAM, Muskens OL. Mesoscopic light transport by very strong collective multiple scattering in nanowire mats.Nat Photon2013;7: 413–418..

Zou Y, Sheng X, Xia K, Fu HY, Hu JJ. Parasitic loss suppression in photonic and plasmonic photovoltaic light trapping structures.Opt Express2014;22: A1197–A1202..

Liu XG, Coxon PR, Peters M, Hoex B, Cole JMet al. Black silicon: fabrication methods, properties and solar energy applications.Energy Environ Sci2014;7: 3223–3263..

Garnett E, Yang PD. Light trapping in silicon nanowire solar cells.Nano Lett2010;10: 1082–1087..

Garnett E, Brongersma ML, Cui Y, McGehee MD. Nanowire solar cells.Annu Rev Mater Res2011;41: 269–295..

Burresi M, Pratesi F, Riboli F, Wiersma DS. Complex photonic structures for light harvesting.Adv Opt Mater2015;3: 722–743..

Tsakalakos L, Balch J, Fronheiser J, Korevaar BA, Sulima Oet al. Silicon nanowire solar cells.Appl Phys Lett2007;91: 233117..

Irrera A, Artoni P, Iacona F, Pecora EF, Franzò G,et al. Quantum confinement and electroluminescence in ultrathin silicon nanowires fabricated by a maskless etching technique.Nanotechnology2012;23: 075204..

Bunde A, Havlin S.Fractals and Disordered Systems. 2nd ed. Berlin Heidelberg: Springer-Verlag; 1996.

Rammal R, Toulouse G. Random walks on fractals structures and percolation clusters.J Phys Lett1983;44: L13–L22..

Cazé A, Pierrat R, Carminati R. Spatial coherence in complex photonic and plasmonic systems.Phys Rev Lett2013;110: 063903..

Karperien A.FracLac Is for Digital Image Analysis1999–2013. Available athttp://rsb.info.nih.gov/ij/plugins/fraclac/FLHelp/Introduction.htmhttp://rsb.info.nih.gov/ij/plugins/fraclac/FLHelp/Introduction.htm..

Voss RF, Laibowitz RB, Alessandrini EI. Percolation and fractal properties of thin gold films. In: Hughes BD, Ninham BW, editors.The Mathematics and Physics of Disordered Media: Percolation, Random Walk, Modeling and Simulation. Lecture Notes in Mathematics, vol. 1035. Berlin Heidelberg: Springer; 1983; 153–168.

Plotnick RE, Gardner RH, Hargrove WW, Prestegaard K, Perlmutter M. Lacunarity analysis: a general technique for the analysis of spatial patterns.Phys Rev E1996;53: 5461–5468..

Andersson TG. The initial growth of vapour deposited gold films.Gold Bull1982;15: 7–18..

Holmberg VC, Bogart TD, Chockla AM, Hessel CM, Korgel BA. Optical properties of silicon and germanium nanowire fabric.J Phys Chem C2012;116: 22486–22491..

Bruggemann DAG. Berechnung verschiedener physikalischer Konstanten von heterogen substanzen.Ann Phys1935;24: 636–679..

Aspnes DE, Studna AA. Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV.Phys Rev B1983;27: 985–1009..

Waterman PC. Symmetry, unitarity, and geometry in electromagnetic scattering.Phys Rev D1971;3: 825–839..

Borghese F, Denti P, Saija R, Toscano G, Sindoni OI. Multiple electromagnetic scattering from a cluster of spheres. I Theory.Aerosol Sci Technol1984;3: 227–235..

Borghese F, Denti P, Saija R.Scattering from Model Nonspherical Particles. 2nd ed. Berlin Heidelberg: Springer-Verlag; 2007.

Mishchenko MI, Travis LD, Lacis AA.Scattering, Absorption, and Emission of Light by Small Particles. Cambridge: Cambridge University Press; 2002.

Kuga Y, Ishimaru A. Retroreflectance from a dense distribution of spherical particles.J Opt Soc Am A1984;8: 831–835..

Van Albada MP, Lagendijk A. Observation of weak localization of light in a random medium.Phys Rev Lett1985;55: 2692–2695..

Wolf PE, Maret G. Weak localization and coherent backscattering of photons in disordered media.Phys Rev Lett1985;55: 2696–2698..

Muskens OL, Diedenhofen SL, Kaas BC, Algra RE, Bakkers EPAMet al. Large photonic strength of highly tunable resonant nanowire materials.Nano Lett2009;9: 930–934..

Stockman MI. Inhomogeneous eigenmode localization, chaos, and correlations in large disordered clusters.Phys Rev E1997;56: 6494–6507..

Priolo F, Gregorkiewicz T, Galli M, Krauss TF. Silicon nanostructures for photonics and photovoltaics.Nat Nanotech2014;9: 19–32..

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