Charge carrier transport mechanisms of passivating contacts studied by temperature-dependent J-V measurements
Abstract: The charge carrier transport mechanism of passivating contacts which feature an ultra-thin oxide layer is investigated by studying temperature-dependent current-voltage characteristics. 4-Terminal dark J-V measurements at low temperatures reveal non-linear J-V characteristics of passivating contacts with a homogeneously grown silicon oxide, which result in an exponential increase in contact resistance towards lower temperature. The attempt to describe the R(T) characteristic solely by thermionic emission of charge carriers across an energy barrier leads to a significant underestimation of the resistance by several orders of magnitude. However, the data can be described properly with the metal-insulator-semiconductor (MIS) theory if tunneling of charge carriers through the silicon oxide layer is taken into account. Furthermore, temperature-dependent light J-V characteristics of solar cells featuring passivating contacts at the rear revealed a FF drop at T < 205 K, which is near the onset temperature of the exponential increase in contact resistivity
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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Solar energy materials & solar cells. - 178 (2018) , 15-19, ISSN: 1879-3398
- Klassifikation
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Elektrotechnik, Elektronik
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2019
- Urheber
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Feldmann, Frank
Nogay, Gizem
Löper, Philipp
Young, David L.
Lee, Benjamin G.
Stradins, Paul
Hermle, Martin
Glunz, Stefan
- DOI
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10.1016/j.solmat.2018.01.008
- URN
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urn:nbn:de:bsz:25-freidok-1457080
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:50 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Feldmann, Frank
- Nogay, Gizem
- Löper, Philipp
- Young, David L.
- Lee, Benjamin G.
- Stradins, Paul
- Hermle, Martin
- Glunz, Stefan
- Universität
Entstanden
- 2019
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