Abstract
Plasmonic interfaces consisting of silver nanoparticles of different sizes (50–100 nm) have been processed by the self-assembled dewetting technique and integrated to hydrogenated amorphous silicon (a-Si:H) using SiNx spacer layers to investigate the dependence of optical trapping enhancement on spacer layer thickness through the enhancements in photocurrent. Samples illuminated from the a-Si:H side exhibit a localized surface plasmon resonance (LSPR) that is red-shifted with the increasing particle size and broadened into the red with the increasing spacer layer thickness. The photocurrent measured in a-Si:H is not only consistent with the red-shift and broadening of the LSPR, but exhibits critical dependence on the spacer layer thickness also. The samples with plasmonic interfaces and a SiNx spacer layer exhibit appreciable enhancement of photocurrent compared with flat a-Si:H reference depending on the size of the Ag nanoparticle. Simulations conducted on one-dimensional square structures exhibit electric fields that are localized near the plasmonic structures but extend appreciably into the higher refractive index a-Si:H. These simulations produce a clear red-shift and broadening of extinction spectra for all spacer layer thicknesses and predict an enhancement in photocurrent in agreement with experimental results. The spectral dependence of photocurrent for six plasmonic interfaces with different Ag nanoparticle sizes and spacer layer thicknesses are correlated with the optical spectra and compared with the simulations to predict an optimal spacer layer thickness.
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References
Aberle AG (2001) Overview on SiN surface passivation of crystalline silicon solar cells. Sol Energy Mater Sol Cells 65:239–248
Atrel AC, García-Etxarri A, Alaeian H, Dionne JA (2012) Toward high-efficiency solar upconversion with plasmonic nanostructures. J Opt 14:024008
Atwater HA, Polman A (2010) Plasmonics for improved photovoltaic devices. Nat Mater 9:205–213
Beltran-Huarac J, Wang J, Tanaka H, Jadwisienczak WM, Weiner BR, Morell G (2013) Stability of the Mn photoluminescence in bifunctional ZnS:0.05 Mn nanoparticles. J Appl Phys 114:053106
Catchpole KR, Polman A (2008a) Design principles for particle plasmon enhanced solar cells. Appl Phys Lett 93:191113
Catchpole KR, Polman A (2008b) Plasmonic solar cells. Opt Express 16:21799
Cho EC (2007) Silicon quantum dots in a dielectric matrix for all-Si tandem solar cells. Adv Optoelectron 2007:69578
Eminian C, Haug FJ, Cubero O, Niquille X, Ballif C (2011) Photocurrent enhancement in thin film amorphous silicon solar cells with silver nanoparticles. Progr Photovolt 19:260
Gangopadhyay U, Kim K, Mangalaraj D, Yi J (2004) Low cost CBD ZnS antireflection coating on large area commercial mono-crystalline silicon solar cells. Appl Surf Sci 230:364–370
Ghannam MY, Abouelsaood AA, Alomar AS, Poortmans J (2010) Analysis of thin-film silicon solar cells with plasma textured front surface and multi-layer porous silicon back reflector. Sol Energy Mater Sol Cells 94:850–856
Granet G, Guizal B (1996) Efficient implementation of the coupled wave method for metallic lamellar gratings in TM polarization. J Opt Soc Am A 13:1019–1023
Guler U, Turan R (2010) Effect of particle properties and light polarization on the plasmonic resonances in metallic nanoparticles. Opt Express 18:17322–17338
Ho C, Yeh D, Su V, Yang C, Yang P, Pu M, Kuan C, Cheng I, Lee S (2012) Plasmonic multilayer nanoparticles enhanced photocurrent in thin film hydrogenated amorphous silicon solar cells. J Appl Phys 112:023113
Johnson PB, Christy RW (1972) Optical Constants of the Noble Metals. Phys Rev B 6:4370
Lahoz F, Perez-Rodriguez C, Hernandez SE, Martin IR, Lavin V, Rodriguez-Mendoza UR (2011) Upconversion mechanisms in rare-earth doped glasses to improve the efficiency of silicon solar cells. Sol Energy Mater Sol Cells 95:1671–1677
Lalanne P, Jurek MP (1998) Computation of the near-field pattern with the coupled-wave method for TM polarization. J Mod Opt 45:1357–1374
Lalanne P, Morris GM (1996) Highly improved convergence of the coupled-wave method for TM polarization. J Opt Soc Am A 13:779–789
Lim SH, Mar W, Matheu P, Derkacs D, Yu ET (2007) Photocurrent spectroscopy of optical absorption enhancement in silicon photodiodes via scattering from surface plasmon polaritons in gold nanoparticles. J Appl Phys 101:104309
Lükermanna B, Heinzmanna U, Stiebig U (2012) Plasmon induced NIR response of thin-film a-Si: H solar cells. Proc SPIE 8471:84710S-1
Mirin NA, Halas NJ (2009) Light-bending nanoparticles. Nano Lett 9:1255–1259
Moulin E, Sukmanowski J, Luo P, Carius R, Royer FX, Stiebig H (2008) Improved light absorption in thin-film silicon solar cells by integration of silver nanoparticles. J Non-Cryst Solids 354:2488–2491
Nasser H, Saleh ZM, Ozkol E, Günoven M, Bek A, Turan R (2013) fabrication of Ag nanoparticles embedded in Al:ZnO as potential light-trapping plasmonic interface for thin film solar cells. Plasmonics 8:1485–1492
Pillai S, Green MA (2010) Plasmonics for photovoltaic applications. Sol Energy Mater Sol Cells 94:1481–1486
Pillai S, Catchpole KR, Trupke T, Green MA (2007) Surface plasmon enhanced silicon solar cells. J Appl Phys 101:093105
Saleh ZM, Nasser H, Özkol E, Günöven M, Canli S, Bek A, Turan R (2013) Enhanced optical absorption and spectral photocurrent in a-Si: H by single- and double-layer silver plasmonic interfaces. Plasmonics 9:357–365
Schaadt DM, Feng B, Yu ET (2005) Enhanced semiconductor optical absorption via surface plasmon excitation in metal nanoparticles. Appl Phys Lett 86:063106
Soderstromn K, Haug FJ, Escarre J, Pahud C, Biron R, Ballif C (2011) Highly reflective nanotextured sputtered silver back reflector for flexible high-efficiency n–i–p thin-film silicon solar cells. Sol Energy Mater Sol Cells 95:3585–3591
Stuart HR, Hall DG (1998) Island size effects in nanoparticles enhanced photodetectors. Appl Phys Lett 73:3815–3817
Temple TL, Mahanama GDK, Reehal HS, Bagnall DM (2009) Influence of localized surface Plasmon excitation in silver nanoparticles on the performance of silicon solar cells. Sol Energy Mater Sol Cells 93:1978–1985
Trupke T, Green MA, Wurfel P (2002) Improving solar cell efficiencies by up-conversion of sub-band-gap light. J Appl Phys 92:4117
Yu ET, Derkacs D, Lim SH, Matheu B, Schaadt M (2008) Plasmonic nanoparticle scattering for enhanced performance of photovoltaic and photodetector devices. Proc. SPIE 7033: V-9
Acknowledgments
R. T. acknowledges the support by the Scientific and Technological Research Council of Turkey (TUBITAK) under joint project with BMBF and Rainbow Energy, per the contract number 109R037. A. B. is grateful to The Scientific and Technological Research Council of Turkey (TUBITAK) for their support under Grant numbers 113F239, 113F375, and 113M931. Z.M. Saleh acknowledges the support from the Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB-2221 program. H. Nasser acknowledges the support from the Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB-2215 program.
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Saleh, Z.M., Nasser, H., Özkol, E. et al. Optimized spacer layer thickness for plasmonic-induced enhancement of photocurrent in a-Si:H. J Nanopart Res 17, 419 (2015). https://doi.org/10.1007/s11051-015-3225-9
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DOI: https://doi.org/10.1007/s11051-015-3225-9