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dc.contributor.authorHilali, Mohamed M.
dc.contributor.authorJeong, Ji-Weon
dc.contributor.authorRohatgi, Ajeet
dc.contributor.authorMeier, D. L.
dc.contributor.authorCarroll, A. F.
dc.date.accessioned2008-12-15T18:00:02Z
dc.date.available2008-12-15T18:00:02Z
dc.date.issued2002-05
dc.identifier.urihttp://hdl.handle.net/1853/26160
dc.descriptionPresented at the 29th IEEE Photovoltaic Specialists Conference; New Orleans, Louisiana; May 17-24, 2002. ©2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en
dc.description.abstractSelf-aligned selective-emitter cells have been fabricated using a self-doping paste by co-firing the front and back contacts. Good ohmic contacts with ~0.774 fill factor were obtained on 100 Ω/sq. emitters after alloying the self-doping Ag grid by a 900°C spike firing in a belt furnace. Screen-printed selective emitter Fz Si cells gave an efficiency of 16.4%. Selective-emitter cells with effective front-surface passivation produced almost 0.4% higher absolute efficiency than the conventional 45 Ω/sq. homogeneous-emitter cell co-fired at 850°C. IQE data showed a 23% higher spectral response at 400 mm wavelength for the passivated selective-emitter cell over the conventional 40-45 Ω/sq. emitter cell. This is due to lower front-surface recombination velocity and reduced heavy doping effects. Long-wavelength response of the selective-emitter cell was also slightly superior due to the improved back-surface field. As a result, the selective-emitter cell shows a much higher J(sc) and V(oc) than a cofired conventional-emitter cell. Rapid firing of the self-doping paste was found to be more effective than the slow firing process.en
dc.language.isoen_USen
dc.publisherGeorgia Institute of Technologyen
dc.subjectSolar cellsen
dc.subjectSilicon solar cellsen
dc.titleOptimization of Self-Doping Ag Paste Firing to Achieve High Fill Factors on Screen- Printed Silicon Solar Cells with a 100 Ω/sq. Emitteren
dc.typeProceedingsen
dc.contributor.corporatenameGeorgia Institute of Technology. University Center of Excellence for Photovoltaic Research and Education
dc.contributor.corporatenameEBARA Solar, Inc.
dc.contributor.corporatenameE.I. du Pont de Nemours & Company. Microcircuit Materials


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