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AuthorSalomon, Oliverdc.contributor.author
AuthorHempel, Wolframdc.contributor.author
AuthorKiowski, Oliverdc.contributor.author
AuthorLotter, Erwindc.contributor.author
AuthorWitte, Wolframdc.contributor.author
AuthorFerati, Artandc.contributor.author
AuthorSchneikart, Anjadc.contributor.author
AuthorKaune, Gunardc.contributor.author
AuthorSchäffler, Raymunddc.contributor.author
AuthorBecker, Maximiliandc.contributor.author
AuthorSchröppel, Birgitdc.contributor.author
AuthorVidal Lorbada, Ricardodc.contributor.author
AuthorMücke, Dennisdc.contributor.author
AuthorWalter, Thomasdc.contributor.author
Date of accession2020-12-07T15:12:08Zdc.date.accessioned
Available in OPARU since2020-12-07T15:12:08Zdc.date.available
Date of first publication2019-11-26dc.date.issued
AbstractThe authors investigated the effect of an applied high voltage (1 kV) across the thickness of a soda-lime glass substrate of Cu(In,Ga)Se2 (CIGS) thin-film solar cells. Two types of CIGS cells were tested, differing only in the deposition process of the molybdenum (Mo) back contact. Whilst one cell type was susceptible to potential induced degradation (PID), the other exhibited highly increased stability against PID. PID occurs for PID-susceptible cells after the transfer of a certain amount of charge through the soda-lime glass substrate when the Mo back contact of the cell operates as a cathode (negatively biased versus backside of the substrate). Capacitance–voltage and electron-beam-induced current measurements showed an enlarged space charge region expanding to the Mo back contact and a lowered doping density by a negative potential for PID-susceptible cells. Glow discharge optical emission spectroscopy (GDOES) revealed an accumulation of sodium (Na) in the solution-grown CdS buffer layer and a segregation on the surface of the ZnO:Al window layer for higher charges for PID-susceptible cells. Cells with increased PID immunity did not show an increase of Na for charges up to around 9 mC/cm². We demonstrate that it is possible to improve the PID stability of CIGS solar cells by modification of the molybdenum back contact.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseCC BY 4.0 Internationaldc.rights
Link to license texthttps://creativecommons.org/licenses/by/4.0/dc.rights.uri
KeywordPIDdc.subject
KeywordGDOESdc.subject
KeywordCVdc.subject
Keywordstability PVdc.subject
Dewey Decimal GroupDDC 620 / Engineering & allied operationsdc.subject.ddc
LCSHSodiumdc.subject.lcsh
LCSHPhotovoltaic power generationdc.subject.lcsh
LCSHPhotovoltaic power systemsdc.subject.lcsh
TitleInfluence of molybdenum back contact on the PID effect for Cu(In,Ga)Se2 solar cellsdc.title
Resource typeWissenschaftlicher Artikeldc.type
SWORD Date2019-12-19T17:48:24Zdc.date.updated
VersionpublishedVersiondc.description.version
DOIhttp://dx.doi.org/10.18725/OPARU-33969dc.identifier.doi
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-oparu-34031-9dc.identifier.urn
GNDCIGS-Solarzelledc.subject.gnd
GNDNatriumdc.subject.gnd
GNDEBIC-Verfahrendc.subject.gnd
GNDFotovoltaikdc.subject.gnd
Peer reviewjauulm.peerReview
DCMI TypeTextuulm.typeDCMI
CategoryPublikationenuulm.category
In cooperation withZentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW)uulm.cooperation
In cooperation withuulm.cooperation
In cooperation withuulm.cooperation
In cooperation withuulm.cooperation
In cooperation withTechnische Hochschule Ulmuulm.cooperation
DOI of original publication10.3390/coatings9120794dc.relation1.doi
Source - Title of sourceCoatingssource.title
Source - Place of publicationMDPIsource.publisher
Source - Volume9source.volume
Source - Issue12source.issue
Source - Year2019source.year
Source - Article number794source.articleNumber
Source - eISSN2079-6412source.identifier.eissn
BibliographyTHUuulm.bibliographie


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