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Effects of additives on the improved growth rate and morphology of Chemical Bath Deposited Zn(S,O,OH) buffer layer for Cu(In,Ga)Se2- based solar cells

Published online by Cambridge University Press:  19 August 2013

Thibaud Hildebrandt ,
Nicolas Loones ,
Nathanaelle Schneider ,
Muriel Bouttemy ,
Jackie Vigneron ,
Arnaud Etcheberry ,
Daniel Lincot  and
Negar Naghavi
Thibaud Hildebrandt
Affiliation:
Institute of Research & Development on Photovoltaic Energy (IRDEP), EDF/CNRS/Chimie-ParisTech, UMR 7174, 6 quai Watier, 78400 Chatou, France
Nicolas Loones
Affiliation:
Institute of Research & Development on Photovoltaic Energy (IRDEP), EDF/CNRS/Chimie-ParisTech, UMR 7174, 6 quai Watier, 78400 Chatou, France
Nathanaelle Schneider
Affiliation:
Institute of Research & Development on Photovoltaic Energy (IRDEP), EDF/CNRS/Chimie-ParisTech, UMR 7174, 6 quai Watier, 78400 Chatou, France
Muriel Bouttemy
Affiliation:
Institute Lavoisier of Versailles (ILV), CNRS/UVSQ, UMR 8180, 45 av. des Etats-Unis, 78035 Versailles, France
Jackie Vigneron
Affiliation:
Institute Lavoisier of Versailles (ILV), CNRS/UVSQ, UMR 8180, 45 av. des Etats-Unis, 78035 Versailles, France
Arnaud Etcheberry
Affiliation:
Institute Lavoisier of Versailles (ILV), CNRS/UVSQ, UMR 8180, 45 av. des Etats-Unis, 78035 Versailles, France
Daniel Lincot
Affiliation:
Institute of Research & Development on Photovoltaic Energy (IRDEP), EDF/CNRS/Chimie-ParisTech, UMR 7174, 6 quai Watier, 78400 Chatou, France
Negar Naghavi
Affiliation:
Institute of Research & Development on Photovoltaic Energy (IRDEP), EDF/CNRS/Chimie-ParisTech, UMR 7174, 6 quai Watier, 78400 Chatou, France
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Abstract

Zn(S,O,OH) Chemical Bath Deposited (CBD) remains one of the most studied Cd-free buffer layer for replacing the CBD-CdS buffer layer in a Cu(In,Ga)Se2-based (CIGSe) solar cells and has already demonstrated its potential to lead to high-efficiencies. However, in order to further increase the deposition rate of the Zn(S,O,OH) layer during the CBD, the inclusion of additives can be a reasonable strategy, as long as the efficiencies of solar cells are maintained. The aim of this work is to understand the effect of the introduction of additives such as hydrogen peroxide (H2O2), H2O2+ethanolamine (C2H7NO) and H2O2+tri-sodium citrate (Na3C6H5O7) during CBD on the deposition mechanism, the growth rate and the quality of the buffer layer. It has been shown that the combined use of H2O2 and citrate in the bath formulation allows the deposition of Zn(S,O,OH) via a mix of “ion-by-ion” and “cluster-by-cluster” mechanisms that have good properties as buffer layers leading to high efficiency solar cells.

Keywords

thin filmphotovoltaicchemical synthesis
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1538: Symposium C – Compound Semiconductors: Thin-Film Photovoltaics, LEDs and Smart Energy Controls , 2013 , pp. 39 - 44
Copyright
Copyright © Materials Research Society 2013 

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References

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