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Improved Metal Oxide Electrode for CIGS Solar Cells: The Application of an AgOX Wetting Layer

Neugebohrn, Nils and Osterthun, Norbert and Götz, Maximilian and Gehrke, Kai and Agert, Carsten (2021) Improved Metal Oxide Electrode for CIGS Solar Cells: The Application of an AgOX Wetting Layer. Nanoscale Research Letters, 16 (1). Springer Nature. doi: 10.1186/s11671-021-03506-1. ISSN 1931-7573.

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Official URL: http://dx.doi.org/10.1186/s11671-021-03506-1

Abstract

Oxide/metal/oxide (OMO) layer stacks are used to replace transparent conductive oxides as front contact of thin-film solar cells. These multilayer structures not only reduce the overall thickness of the contact, but can be used for colouring of the cells utilizing interference effects. However, sheet resistance and parasitic absorption, both of which depend heavily on the metal layer, should be further reduced to reach higher efficiencies in the solar cells. In this publication, AgOX wetting layers were applied to OMO electrodes to improve the performance of Cu(In,Ga)Se2 (CIGS) thin-film solar cells. We show that an AgOX wetting layer is an effective measure to increase transmission and conductivity of the multilayer electrode. With the presented approach, we were able to improve the short-circuit current density by 18% from 28.8 to 33.9 mA/cm2 with a metal (Ag) film thickness as low as 6 nm. Our results highlight that OMO electrodes can be an effective replacement for conventional transparent conductive oxides like aluminium-doped zinc oxide on thin-film solar cells.

Item URL in elib:https://elib.dlr.de/141480/
Document Type:Article
Title:Improved Metal Oxide Electrode for CIGS Solar Cells: The Application of an AgOX Wetting Layer
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Neugebohrn, NilsNils.Neugebohrn (at) dlr.dehttps://orcid.org/0000-0002-3335-7861
Osterthun, Norbertnorbert.osterthun (at) dlr.dehttps://orcid.org/0000-0003-2668-6605
Götz, MaximilianMaximilian.Goetz (at) dlr.dehttps://orcid.org/0000-0002-6078-4359
Gehrke, KaiKai.Gehrke (at) dlr.dehttps://orcid.org/0000-0002-0591-8289
Agert, Carstencarsten.agert (at) dlr.dehttps://orcid.org/0000-0003-4733-5257
Date:20 March 2021
Journal or Publication Title:Nanoscale Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:16
DOI :10.1186/s11671-021-03506-1
Publisher:Springer Nature
ISSN:1931-7573
Status:Published
Keywords:OMO, Oxide/metal/oxide, CIGS, transparent electrode, wetting layer
HGF - Research field:Energy
HGF - Program:Energy System Design
HGF - Program Themes:Digitalization and System Technology
DLR - Research area:Energy
DLR - Program:E SY - Energy System Technology and Analysis
DLR - Research theme (Project):E - Energy System Technology
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Urban and Residential Technologies
Deposited By: Neugebohrn, Nils
Deposited On:30 Mar 2021 16:00
Last Modified:30 Mar 2021 16:00

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