Injection-level dependent surface recombination velocities at the silicon-plasma silicon nitride interface

verfasst von
Armin G. Aberle, Thomas Lauinger, Jan Schmidt, Rudolf Hezel
Abstract

Experimental evidence is presented that the effective surface recombination velocity (Seff) at p-silicon surfaces passivated by silicon nitride films (fabricated in a plasma-enhanced chemical vapor deposition system) shows an injection-level dependence similar to the behavior of thermally oxidized silicon surfaces. Using the microwave-detected photoconductance decay method, injection-level dependent Seff measurements were taken on nitride-passivated p-silicon wafers of different resistivities (1.5-3000 Ω cm). The obtained Seff values also show that for low-resistivity substrates (≤2 Ω cm), nitride passivation is as effective as conventional oxide passivation (and even superior at low injection levels) and furthermore offers the advantage of a less pronounced injection-level dependence.

Externe Organisation(en)
Institut für Solarenergieforschung GmbH (ISFH)
Typ
Artikel
Journal
Applied physics letters
Band
66
Seiten
2828
Anzahl der Seiten
1
ISSN
0003-6951
Publikationsdatum
22.05.1995
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Physik und Astronomie (sonstige)
Elektronische Version(en)
https://doi.org/10.1063/1.113443 (Zugang: Geschlossen)