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RESEARCH PRODUCT
Theoretical and experimental analysis of photonic structures for fluorescent concentrators with increased efficiencies
Stefan W. GlunzAndreas GombertUwe RauGerhard WillekeMarius PetersBenedikt BläsiRudolf ZentelJan Christoph GoldschmidtLorenz SteidlLiv Prönnekesubject
Total internal reflectionPhotonChemistrybusiness.industryPhotovoltaic systemSurfaces and InterfacesCondensed Matter PhysicsConcentratorFluorescenceSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsOpticsFluoreszenzkonzentratorenMaterials ChemistryReflection (physics)Ray tracing (graphics)Electrical and Electronic EngineeringPhotonicsbusinessdescription
In this study we present a theoretical and experimental analy- sis of the application of photonic band stop filters on top of photovoltaic fluorescent concentrators in order to increase the photon collection efficiency. The light guiding effect of the fluorescent concentrator relies on total internal reflection. The escape cone of total internal reflection is their major loss mechanism. Our ray tracing simulation allows to calculate the beneficial effect of photonic band stop reflection filters, which reduce these losses, and to simulate the angular distribu- tion of the light trapped in the concentrator. We present simula- tions of the optical properties of 1D and 3D photonic structures and how 3D structures are realized with colloidal opals. We also show that the application of a 1D photonic structure in- creases the efficiency of a real system by 20% relative.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-12-01 | physica status solidi (a) |