The Role of CdS Buffer Layer in CuInS2

based thin Film Solar Cells


R. Naciri1, H. Bihri2, A. Rahioui1, A. Mzerd3,  C. Messaoudi1*, M. Abd-Lefdil3

1a) Groupe d’Optoélectronique et Techniques Energétiques Appliquées,

Faculté des Sciences et Techniques,  BP 509 Errachidia, Maroc.

2b) Département de Physique, Faculté des Sciences et Techniques de Tanger,B.P 416 Tanger, Maroc

3c) Laboratoire de Physique des Matériaux, Faculté des Sciences de Rabat,B.P 1014 Rabat, Maroc.

* Corresponding author. E-mail:

Received: 22 October 2007; revised version accepted:13 June 2008



     In this work we report p-CuInS2 based solar cells prepared entirely by spray pyrolysis in combination

with chemical bath deposition (CBD) technique. The effects of the single and multiple dips deposition

process of the CBD CdS thin on the thickness of the as-deposited thin layers are investigated. The obtained results are used to study the influence of the CdS buffer layer thickness on the performance of ZnO/CdS/CuInS2 solar cells. A significant influence on device parameters such as open circuit voltage current circuit and fill factor was observed. The best efficiency of our solar cells obtained under AM1.5 solar spectrum was 3.24 %.


Keywords: Spray; chemical bath deposition; thin films; characterization; solar cells.


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