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Optical Lithography Patterning of SiO2 Layers for Interface Passivation of Thin Film Solar Cells
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. INL, Int Iberian Nanotechnol Lab, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal.ORCID iD: 0000-0002-6449-3321
INL, Int Iberian Nanotechnol Lab, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal;Univ Aveiro, Dept Fis, Campus Univ Santiago, P-3810193 Aveiro, Portugal.
Univ Hasselt, Partner Solliance, B-3590 Diepenbeek, Belgium;IMEC, Partner Solliance, B-3001 Leuven, Belgium;IMOMEC, Partner Solliance, B-3590 Diepenbeek, Belgium.
Univ Hasselt, Partner Solliance, B-3590 Diepenbeek, Belgium;IMEC, Partner Solliance, B-3001 Leuven, Belgium;IMOMEC, Partner Solliance, B-3590 Diepenbeek, Belgium.
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2018 (English)In: SOLAR RRL, ISSN 2367-198X, Vol. 2, no 12, article id 1800212Article in journal (Refereed) Published
Abstract [en]

Ultrathin Cu(In,Ga)Se-2 solar cells are a promising way to reduce costs and to increase the electrical performance of thin film solar cells. An optical lithography process that can produce sub-micrometer contacts in a SiO2 passivation layer at the CIGS rear contact is developed in this work. Furthermore, an optimization of the patterning dimensions reveals constrains over the features sizes. High passivation areas of the rear contact are needed to passivate the CIGS interface so that high performing solar cells can be obtained. However, these dimensions should not be achieved by using long distances between the contacts as they lead to poor electrical performance due to poor carrier extraction. This study expands the choice of passivation materials already known for ultrathin solar cells and its fabrication techniques.

Place, publisher, year, edition, pages
2018. Vol. 2, no 12, article id 1800212
Keywords [en]
Cu(In, Ga)Se-2 (CIGS), defects passivation, optoelectronics, semiconductors, thin film solar cells
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-372770DOI: 10.1002/solr.201800212ISI: 000452302800015OAI: oai:DiVA.org:uu-372770DiVA, id: diva2:1278256
Part of project
ARCIGS-M
Funder
EU, Horizon 2020, 715027EU, Horizon 2020, 720887Available from: 2019-01-14 Created: 2019-01-14 Last updated: 2019-03-11Bibliographically approved

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The full text will be freely available from 2019-09-16 00:00
Available from 2019-09-16 00:00

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Bose, Sourav

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