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dc.contributor.authorAllen, Thomas G.
dc.contributor.authorBullock, James
dc.contributor.authorJeangros, Quentin
dc.contributor.authorSamundsett, Christian
dc.contributor.authorWan, Yimao
dc.contributor.authorCui, Jie
dc.contributor.authorHessler-Wyser, Aïcha
dc.contributor.authorDe Wolf, Stefaan
dc.contributor.authorJavey, Ali
dc.contributor.authorCuevas, Andres
dc.date.accessioned2017-05-31T11:23:04Z
dc.date.available2017-05-31T11:23:04Z
dc.date.issued2017-02-03
dc.identifier.citationAllen TG, Bullock J, Jeangros Q, Samundsett C, Wan Y, et al. (2017) A Low Resistance Calcium/Reduced Titania Passivated Contact for High Efficiency Crystalline Silicon Solar Cells. Advanced Energy Materials: 1602606. Available: http://dx.doi.org/10.1002/aenm.201602606.
dc.identifier.issn1614-6832
dc.identifier.doi10.1002/aenm.201602606
dc.identifier.urihttp://hdl.handle.net/10754/623780
dc.description.abstractRecent advances in the efficiency of crystalline silicon (c-Si) solar cells have come through the implementation of passivated contacts that simultaneously reduce recombination and resistive losses within the contact structure. In this contribution, low resistivity passivated contacts are demonstrated based on reduced titania (TiOx) contacted with the low work function metal, calcium (Ca). By using Ca as the overlying metal in the contact structure we are able to achieve a reduction in the contact resistivity of TiOx passivated contacts of up to two orders of magnitude compared to previously reported data on Al/TiOx contacts, allowing for the application of the Ca/TiOx contact to n-type c-Si solar cells with partial rear contacts. Implementing this contact structure on the cell level results in a power conversion efficiency of 21.8% where the Ca/TiOx contact comprises only ≈6% of the rear surface of the solar cell, an increase of 1.5% absolute compared to a similar device fabricated without the TiOx interlayer.
dc.description.sponsorshipThis work was supported by the Australian government through the Australian Renewable Energy Agency (ARENA). Work at the University of California, Berkeley was supported by the Bay Area Photovoltaic Consortium (BAPVC). The authors would like to acknowledge Sorin Lazar for his help with monochromated EELS experiments and the Interdisciplinary Centre For Electron Microscopy of EPFL for the use of their microscope.
dc.publisherWiley
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/aenm.201602606/full
dc.titleA Low Resistance Calcium/Reduced Titania Passivated Contact for High Efficiency Crystalline Silicon Solar Cells
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAdvanced Energy Materials
dc.contributor.institutionResearch School of Engineering; Australian National University; Canberra 0200 Australia
dc.contributor.institutionDepartment of Electrical Engineering and Computer Sciences; University of California; Berkeley CA 94720 USA
dc.contributor.institutionMaterials Sciences Division; Lawrence Berkeley National Laboratory; Berkeley CA 94720 USA
dc.contributor.institutionDepartment of Physics; University of Basel; Klingelbergstrasse 82 Basel CH-4056 Switzerland
dc.contributor.institutionInstitute of Micro Engineering; Photovoltaics and Thin-Film Electronic Laboratory; École Polytechnique Fédérale de Lausanne; Maladière 71b CH-200 Neuchatel Switzerland
kaust.personDe Wolf, Stefaan
dc.date.published-online2017-02-03
dc.date.published-print2017-06


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