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dc.contributor.authorAyala P., Silvana
dc.contributor.authorVorndran, Shelby
dc.contributor.authorWu, Yuechen
dc.contributor.authorChrysler, Benjamin
dc.contributor.authorKostuk, Raymond K.
dc.date.accessioned2017-03-02T19:52:55Z
dc.date.available2017-03-02T19:52:55Z
dc.date.issued2016-09-23
dc.identifier.citationSilvana Ayala P. ; Shelby Vorndran ; Yuechen Wu ; Benjamin Chrysler and Raymond K. Kostuk " Segmented holographic spectrum splitting concentrator ", Proc. SPIE 9937, Next Generation Technologies for Solar Energy Conversion VII, 99370L (September 23, 2016); doi:10.1117/12.2236699; http://dx.doi.org/10.1117/12.2236699en
dc.identifier.issn0277-786X
dc.identifier.doi10.1117/12.2236699
dc.identifier.urihttp://hdl.handle.net/10150/622711
dc.description.abstractThis paper presents a segmented parabolic concentrator employing holographic spectral filters that provide focusing and spectral bandwidth separation capability to the system. Strips of low band gap silicon photovoltaic (PV) cells are formed into a parabolic surface as shown by Holman et. al. [1]. The surface of the PV segments is covered with holographic elements formed in dichromated gelatin. The holographic elements are designed to transmit longer wavelengths to silicon cells, and to reflect short wavelength light towards a secondary collector where high-bandgap PV cells are mounted. The system can be optimized for different combinations of diffuse and direct solar illumination conditions for particular geographical locations by controlling the concentration ratio and filtering properties of the holographic elements. In addition, the reflectivity of the back contact of the silicon cells is used to increase the optical path length and light trapping. This potentially allows the use of thin film silicon for the low bandgap PV cell material. The optical design combines the focusing properties of the parabolic concentrator and the holographic element to control the concentration ratio and uniformity of the spectral distribution at the high bandgap cell location. The presentation concludes with a comparison of different spectrum splitting holographic filter materials for this application.
dc.language.isoenen
dc.publisherSPIE-INT SOC OPTICAL ENGINEERINGen
dc.relation.urlhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2236699en
dc.rights© 2016 SPIEen
dc.subjectSolar energyen
dc.subjectSpectrum Splittingen
dc.subjectconcentrating photovoltaicsen
dc.titleSegmented holographic spectrum splitting concentratoren
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Dept Elect & Comp Engnen
dc.contributor.departmentUniv Arizona, Coll Opt Scien
dc.identifier.journalNEXT GENERATION TECHNOLOGIES FOR SOLAR ENERGY CONVERSION VIIen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
dc.contributor.institutionThe Univ. of Arizona (United States)
dc.contributor.institutionCollege of Optical Sciences, The Univ. of Arizona (United States)
dc.contributor.institutionThe Univ. of Arizona (United States)
dc.contributor.institutionThe Univ. of Arizona (United States)
dc.contributor.institutionThe Univ. of Arizona (United States)
refterms.dateFOA2018-09-11T17:49:08Z
html.description.abstractThis paper presents a segmented parabolic concentrator employing holographic spectral filters that provide focusing and spectral bandwidth separation capability to the system. Strips of low band gap silicon photovoltaic (PV) cells are formed into a parabolic surface as shown by Holman et. al. [1]. The surface of the PV segments is covered with holographic elements formed in dichromated gelatin. The holographic elements are designed to transmit longer wavelengths to silicon cells, and to reflect short wavelength light towards a secondary collector where high-bandgap PV cells are mounted. The system can be optimized for different combinations of diffuse and direct solar illumination conditions for particular geographical locations by controlling the concentration ratio and filtering properties of the holographic elements. In addition, the reflectivity of the back contact of the silicon cells is used to increase the optical path length and light trapping. This potentially allows the use of thin film silicon for the low bandgap PV cell material. The optical design combines the focusing properties of the parabolic concentrator and the holographic element to control the concentration ratio and uniformity of the spectral distribution at the high bandgap cell location. The presentation concludes with a comparison of different spectrum splitting holographic filter materials for this application.


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