Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/33598
Title: | High-Performance and Industrially Viable Nanostructured SiOx Layers for Interface Passivation in Thin Film Solar Cells | Authors: | Cunha, Jose M. V. Oliveira, Kevin Lontchi, Jackson LOPES, Tomas Curado, Marco A. Barbosa, Joao R. S. Vinhais, Carlos Chen, Wei-Chao Borme, Jerome Fonseca, Helder Gaspar, Joao Flandre, Denis Edoff, Marika Silva, Ana G. Teixeira, Jennifer P. Fernandes, Paulo A. Salome, Pedro M. P. |
Issue Date: | 2021 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | Solar RRL, 5 (3) (Art N° 2000534) | Abstract: | Herein, it is demonstrated, by using industrial techniques, that a passivation layer with nanocontacts based on silicon oxide (SiOx) leads to significant improvements in the optoelectronical performance of ultrathin Cu(In,Ga)Se-2 (CIGS) solar cells. Two approaches are applied for contact patterning of the passivation layer: point contacts and line contacts. For two CIGS growth conditions, 550 and 500 degrees C, the SiOx passivation layer demonstrates positive passivation properties, which are supported by electrical simulations. Such positive effects lead to an increase in the light to power conversion efficiency value of 2.6% (absolute value) for passivated devices compared with a nonpassivated reference device. Strikingly, both passivation architectures present similar efficiency values. However, there is a trade-off between passivation effect and charge extraction, as demonstrated by the trade-off between open-circuit voltage (V-oc) and short-circuit current density (J(sc)) compared with fill factor (FF). For the first time, a fully industrial upscalable process combining SiOx as rear passivation layer deposited by chemical vapor deposition, with photolithography for line contacts, yields promising results toward high-performance and low-cost ultrathin CIGS solar cells with champion devices reaching efficiency values of 12%, demonstrating the potential of SiOx as a passivation material for energy conversion devices. | Notes: | Cunha, JMV (corresponding author), INL Int Iberian Nanotechnol Lab, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal.; Cunha, JMV (corresponding author), Univ Aveiro, Dept Fis, Campus Univ Santiago, P-3810193 Aveiro, Portugal.; Cunha, JMV (corresponding author), Univ Aveiro, I3N, Campus Univ Santiago, P-3810193 Aveiro, Portugal. jose.cunha@inl.int |
Other: | Cunha, JMV (corresponding author), 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 Aveiro, I3N, Campus Univ Santiago, P-3810193 Aveiro, Portugal. jose.cunha@inl.int | Keywords: | Cu(In;Ga)Se-2;passivation;photolithography;silicon oxide;ultrathin | Document URI: | http://hdl.handle.net/1942/33598 | ISSN: | 2367-198X | e-ISSN: | 2367-198X | DOI: | 10.1002/solr.202000534 | ISI #: | WOS:000612038400001 | Rights: | 2021 Wiley-VCH GmbH | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Cunha-2021-Highperformance-and-industrially-vi.pdf Restricted Access | Published version | 1.89 MB | Adobe PDF | View/Open Request a copy |
High-Performance_and_Industrially_Viable_Nanostructured_SiOx_Layers_for_Interface_Passivation_in_Thin_Film_Solar_Cells.pdf | Peer-reviewed author version | 1.51 MB | Adobe PDF | View/Open |
WEB OF SCIENCETM
Citations
16
checked on Sep 27, 2024
Page view(s)
28
checked on Sep 5, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.