Single and double side textured black silicon require different annealing conditions for optimal passivation with ALD Al2O3

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedings – Annual report year: 2018Researchpeer-review

View graph of relations

Black silicon is an attractive surface for solar cells thanks to its intrinsic antireflective properties, however progress in surface passivation is required to exploit its full potential. Here, we present effective minority carrier lifetime measurements on single side textured, double side textured, and flat reference Si surfaces, passivated by AI2O3 with subsequent thermal activation. Effective lifetime measurements revealed that the annealing time resulting in highest effective lifetime, and therefore in the lowest surface recombination velocity of the textured surface, is depending on whether the wafers are single or double side textured. It follows that optimization of passivation of black silicon lifetime samples needs to be carried out on samples with texturing on one or both sides, depending on the solar cell architecture of interest.
Original languageEnglish
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (wcpec) (a Joint Conference of 45th Ieee Pvsc, 28th Pvsec and 34th Eu Pvsec)
Publication date2018
ISBN (Electronic)978-1-5386-8529-7
Publication statusPublished - 2018
Event7th World Conference on Photovoltaic Energy Conversion - Hilton Waikoloa Village Resort, Waikoloa, United States
Duration: 10 Jun 201815 Jun 2018
Conference number: WCPEC-7


Conference7th World Conference on Photovoltaic Energy Conversion
LocationHilton Waikoloa Village Resort
CountryUnited States
CitationsWeb of Science® Times Cited: No match on DOI

ID: 164878447