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A Novel Low-Cost, High Efficiency Micromachined Silicon Solar Cell

Weber, Klaus; Stocks, Matthew; Babaei, Jafar; Everett, Vernie; Neuendorf, Annette; Verlinden, P; Blakers, Andrew

Description

This letter presents a new process for the fabrication of solar cells and modules from single crystal silicon wafers with substantially reduced silicon consumption and processing effort compared to conventional wafer-based cells. The technique of narrow trench etching in an alkaline solution is used to create a series of thin silicon strips extending vertically through the wafer. By turning the silicon strips on their side, a large increase in surface area is achieved. Individual cells...[Show more]

dc.contributor.authorWeber, Klaus
dc.contributor.authorStocks, Matthew
dc.contributor.authorBabaei, Jafar
dc.contributor.authorEverett, Vernie
dc.contributor.authorNeuendorf, Annette
dc.contributor.authorVerlinden, P
dc.contributor.authorBlakers, Andrew
dc.date.accessioned2015-12-13T22:36:53Z
dc.date.available2015-12-13T22:36:53Z
dc.identifier.issn0741-3106
dc.identifier.urihttp://hdl.handle.net/1885/76990
dc.description.abstractThis letter presents a new process for the fabrication of solar cells and modules from single crystal silicon wafers with substantially reduced silicon consumption and processing effort compared to conventional wafer-based cells. The technique of narrow trench etching in an alkaline solution is used to create a series of thin silicon strips extending vertically through the wafer. By turning the silicon strips on their side, a large increase in surface area is achieved. Individual cells fabricated using the new process have reached efficiencies up to 18.5% while a 575 cm2 module incorporating a rear reflector and a cell surface coverage of 50% has displayed an efficiency of 12.3% under standard rating conditions. The technique has the potential to reduce silicon consumption by a factor of 10 compared to standard wafer-based silicon solar cells and, therefore, to dramatically reduce the dependence to the expensive silicon feedstock.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.sourceIEEE Electron Device Letters
dc.subjectKeywords: Anisotropy; Cost effectiveness; Energy efficiency; Etching; Light reflection; Micromachining; Single crystals; Surface area; Wet anisotropic etching; Silicon solar cells Micromachining; Photovoltaic cells; Silicon
dc.titleA Novel Low-Cost, High Efficiency Micromachined Silicon Solar Cell
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume25
dc.date.issued2004
local.identifier.absfor090699 - Electrical and Electronic Engineering not elsewhere classified
local.identifier.absfor091299 - Materials Engineering not elsewhere classified
local.identifier.ariespublicationMigratedxPub5831
local.type.statusPublished Version
local.contributor.affiliationWeber, Klaus, College of Engineering and Computer Science, ANU
local.contributor.affiliationBlakers, Andrew, College of Engineering and Computer Science, ANU
local.contributor.affiliationStocks, Matthew, College of Engineering and Computer Science, ANU
local.contributor.affiliationBabaei, Jafar, College of Engineering and Computer Science, ANU
local.contributor.affiliationEverett, Vernie, College of Engineering and Computer Science, ANU
local.contributor.affiliationNeuendorf, Annette, College of Engineering and Computer Science, ANU
local.contributor.affiliationVerlinden, P, College of Engineering and Computer Science, ANU
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage37
local.bibliographicCitation.lastpage39
local.identifier.doi10.1109/LED.2003.821600
dc.date.updated2015-12-11T09:34:12Z
local.identifier.scopusID2-s2.0-0346076625
CollectionsANU Research Publications

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