Transmission Electron Microscopy Studies of Electron-Selective Titanium Oxide Contacts in Silicon Solar Cells

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dc.contributor.authorAli, Haider
dc.contributor.authorYang, Xinbo
dc.contributor.authorWeber, Klaus
dc.contributor.authorSchoenfeld, Winston V.
dc.contributor.authorDavis, Kristopher
dc.date.accessioned2020-12-20T20:58:20Z
dc.date.available2020-12-20T20:58:20Z
dc.date.issued2017
dc.date.updated2020-11-23T11:23:36Z
dc.description.abstractIn this study, the cross-section of electron-selective titanium oxide (TiO2) contacts for n-type crystalline silicon solar cells were investigated by transmission electron microscopy. It was revealed that the excellent cell efficiency of 21.6% obtained on n-type cells, featuring SiO2/TiO2/Al rear contacts and after forming gas annealing (FGA) at 350°C, is due to strong surface passivation of SiO2/TiO2 stack as well as low contact resistivity at the Si/SiO2/TiO2 heterojunction. This can be attributed to the transformation of amorphous TiO2 to a conducting TiO2−x phase. Conversely, the low efficiency (9.8%) obtained on cells featuring an a-Si:H/TiO2/Al rear contact is due to severe degradation of passivation of the a-Si:H upon FGA.
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn1431-9276
dc.identifier.urihttp://hdl.handle.net/1885/218565
dc.language.isoen_AUen_AU
dc.publisherCambridge University Press
dc.sourceMicroscopy and Microanalysis
dc.titleTransmission Electron Microscopy Studies of Electron-Selective Titanium Oxide Contacts in Silicon Solar Cells
dc.typeJournal article
local.bibliographicCitation.issue5
local.bibliographicCitation.lastpage904
local.bibliographicCitation.startpage900
local.contributor.affiliationAli, Haider, University of Central Florida
local.contributor.affiliationYang, Xinbo, College of Engineering and Computer Science, ANU
local.contributor.affiliationWeber, Klaus, College of Engineering and Computer Science, ANU
local.contributor.affiliationSchoenfeld, Winston V., University of Central Florida
local.contributor.affiliationDavis, Kristopher, University of Central Florida
local.contributor.authoruidYang, Xinbo, u5096110
local.contributor.authoruidWeber, Klaus, u9116880
local.description.notesImported from ARIES
local.identifier.absfor090605 - Photodetectors, Optical Sensors and Solar Cells
local.identifier.ariespublicationu4351680xPUB458
local.identifier.citationvolume23
local.identifier.doi10.1017/S1431927617012417
local.identifier.scopusID2-s2.0-85032579530
local.type.statusPublished Version

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