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Fiona Beck Small Particles, Big Hopes: Absorption Enhancement in Silicon using Metallic Nanoparticles
Centre for Super Earth-saving Science
Regular Superhero Solar Energy Superheros
Rubbish absorption above 1000nm Absorption Spectra of Silicon % Absorption Wavelength (nm)
Texturing to trap light in bulk silicon cells light SEM image of textured silicon taken by Luke Johnson
Localised Surface Plasmons in Metal Nanoparticles -e + + + - - - - - - - -e + + + - - - - - - - E-field Incident Light Time t Time t + /2c
Interface effects Incident light Induced surface plasmon Light coupled into silicon in trapped modes Silver Nanoparticle Dielectric layer
1) Silicon wafer, thin and shiny 2) Dielectric film deposition ~30nm Oxidation for SiO2 APCVD TiO2 Sample Fabrication: 3) Silver film evaporation ~10nm 4) Low temperature anneal ~260 degree C Nanoparticles !
Resonance peaks Smallest particles Biggest particles
Optical measurements Particles on front Particles on rear SiO2 CoatingTiO2 Coating Light source
Absorption Spectra for Particles on Silicon
16 fold increase in light absorption for particles on TiO2 at 1150nm 5.6 times more absorption of light at 1150nm for particles on the rear of a silicon-SiO2 sample
Particles on TiO2Particles on SiO2 SEM Images
My supervisors Klaus Weber and Kylie Catchpole, currently at the Institute of Atomic and Molecular Physics in the Netherlands. Luke Johnson for the TiO2 deposition and the nice SEM image and everyone who has helped me out in the labs.
T HIN FILM SOLAR CELLS Presented by Yao Sun. F UTURE ENERGY SOURCE Clean energy Most reasonable price for the future Available anywhere in the world 1.52*10^21.
Λ1λ1 λ2λ2 2λ22λ2 λ1λ1 λ2λ2 2λ22λ2 Enhancement of Second-Harmonic Generation through Plasmon Resonances in Silver Nanorods Nicholas Wang 1, Patrick McAvoy.
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Gothic Cathedrals and Solar Cells (and maybe a Grail?) A short introduction to the phenomenon of Surface Plasmons and their role in the scattering of light.
Boris N. Chichkov Leibniz University Hannover
Chapter 7b Fabrication of Solar Cell. Different kind of methods for growth of silicon crystal.
Surface Enhanced Infrared Absorption (SEIRA) Spectroscopy
Spectrum from a Prism. Example of a Spectrum Kirchoff’s Laws.
Hydrothermal Processing of Ba X Sr (1-X) TiO 3 Presented By: Adam Chamberlain Advisors: Elliot Slamovich Mark McCormick.
Plasmon enhanced thin-film solar cells: Advanced theoretical analysis and ellipsometric characterization Supervisor: Jesper Jung Postdoc
Photons of Light The smallest unit of light is a photon A photon is often called a particle of light The Energy of an individual photon depends on its.
Nucleation of gold nanoparticles on graphene from Au 144 molecular precursors Andrei Venter 1, Mahdi Hesari 2, M. Shafiq Ahmed 1, Reg Bauld 1, Mark S.
REMOVING SURFACE CONTAMINATES FROM SILICON WAFERS Jed Johnson Brigham Young University.
ARC 11/02/10 Recent Advances in Surface Plasmon Resonance: From Biosensor to Space/astronomical Interest Hololab and CSL S. Habraken, C. Lenaerts, and.
Department of Electrical Engineering, National Taiwan University NOVEL WAFER BONDING TECHNOLOGY SURVEY Po-Wen Chen Department of Electrical Engineering.
Optical Properties of Metal Nanoparticles
Energy of the Future: Solar Cells Rade Kuljic 1, Hyeson Jung 1, Ayan Kar 1, Michael A. Stroscio 1,2 and Mitra Dutta 1,3 1 Department of Electrical and.
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