Nanosecond pulsed laser ablated sub-10 nm silicon nanoparticles for improving photovoltaic conversion efficiency of commercial solar cells
buir.contributor.author | Okyay, Ali Kemal | |
dc.citation.issueNumber | 10 | en_US |
dc.citation.volumeNumber | 19 | en_US |
dc.contributor.author | Rasouli, H. R. | en_US |
dc.contributor.author | Ghobadi, A. | en_US |
dc.contributor.author | Ghobadi, T. G. U. | en_US |
dc.contributor.author | Ates, H. | en_US |
dc.contributor.author | Topalli, K. | en_US |
dc.contributor.author | Okyay, Ali Kemal | en_US |
dc.date.accessioned | 2018-04-12T11:04:45Z | |
dc.date.available | 2018-04-12T11:04:45Z | |
dc.date.issued | 2017 | en_US |
dc.department | Institute of Materials Science and Nanotechnology (UNAM) | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.description.abstract | In this paper, we demonstrate the enhancement of photovoltaic (PV) solar cell efficiency using luminescent silicon nanoparticles (Si-NPs). Sub-10 nm Si-NPs are synthesized via pulsed laser ablation technique. These ultra-small Si nanoparticles exhibit photoluminescence (PL) character tics at 425 and 517 nm upon excitation by ultra-violet (UV) light. Therefore, they can act as secondary light sources that convert high energetic photons to ones at visible range. This down-shifting property can be a promising approach to enhance PV performance of the solar cell, regardless of its type. As proof-of-concept, polycrystalline commercial solar cells with an efficiency of ca 10% are coated with these luminescent Si-NPs. The nanoparticle-decorated solar cells exhibit up to 1.64% increase in the external quantum efficiency with respect to the uncoated reference cells. According to spectral photo-responsivity characterizations, the efficiency enhancement is stronger in wavelengths below 550 nm. As expected, this is attributed to down-shifting via Si-NPs, which is verified by their PL characteristics. The results presented here can serve as a beacon for future performance enhanced devices in a wide range of applications based on Si-NPs including PVs and LED applications. | en_US |
dc.description.provenance | Made available in DSpace on 2018-04-12T11:04:45Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2017 | en |
dc.identifier.doi | 10.1088/2040-8986/aa84dd | en_US |
dc.identifier.eissn | 2040-8986 | en_US |
dc.identifier.issn | 2040-8978 | |
dc.identifier.uri | http://hdl.handle.net/11693/37166 | |
dc.language.iso | English | en_US |
dc.publisher | Institute of Physics Publishing Ltd. | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1088/2040-8986/aa84dd | en_US |
dc.source.title | Journal of Optics (United Kingdom) | en_US |
dc.subject | Efficiency enhancement | en_US |
dc.subject | Laser ablation | en_US |
dc.subject | Silicon nanoparticle | en_US |
dc.subject | Solar cell | en_US |
dc.subject | Ablation | en_US |
dc.subject | Efficiency | en_US |
dc.subject | Image enhancement | en_US |
dc.subject | Laser ablation | en_US |
dc.subject | Light | en_US |
dc.subject | Light emitting diodes | en_US |
dc.subject | Light sources | en_US |
dc.subject | Luminescence | en_US |
dc.subject | Nanoparticles | en_US |
dc.subject | Pulsed lasers | en_US |
dc.subject | Silicon | en_US |
dc.subject | Solar cells | en_US |
dc.subject | Solar power generation | en_US |
dc.subject | Ultrafast lasers | en_US |
dc.subject | Efficiency enhancement | en_US |
dc.subject | External quantum efficiency | en_US |
dc.subject | Future performance | en_US |
dc.subject | Nanosecond pulsed laser | en_US |
dc.subject | Photoresponsivity | en_US |
dc.subject | Photovoltaic conversion | en_US |
dc.subject | Silicon nanoparticles | en_US |
dc.subject | Solar cell efficiencies | en_US |
dc.subject | Silicon solar cells | en_US |
dc.title | Nanosecond pulsed laser ablated sub-10 nm silicon nanoparticles for improving photovoltaic conversion efficiency of commercial solar cells | en_US |
dc.type | Article | en_US |
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