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Han, J., Fu, G., Krishnakumar, V., Liao, C., Jaegermann, W. & Besland, M. P. (2013) Preparation and characterization of ZnS/CdS bi-layer for CdTe solar cell application. J. Phys. Chem. Solids, 74 1879–1883. 
Added by: Laurent Cournède (2016-03-10 21:23:29)
Type de référence: Article
DOI: 10.1016/j.jpcs.2013.08.004
Numéro d'identification (ISBN etc.): 0022-3697
Clé BibTeX: Han2013
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Catégories: CESES
Mots-clés: buffer layer, Chalcogenides, Chemical bath deposition, Chemical synthesis, growth, Multilayers, Photoelectron spectroscopy, thin films, zns thin-films
Créateurs: Besland, Fu, Han, Jaegermann, Krishnakumar, Liao
Collection: J. Phys. Chem. Solids
Consultations : 9/516
Indice de consultation : 3%
Indice de popularité : 0.75%
Résumé     
In this work, bilayer ZnS/CdS film was prepared as an improved window layer of CdTe solar cell. TEM was used to observe the cross section of the bilayer structure. The total thickness of ZnS/CdS film was about 60 nm, which could allow more photons to pass through it and contribute to the photocurrent. Optical properties of the bilayers were investigated using UV-vis spectroscopy. Compared with poor transmission of standard CdS film in the short wavelength range of 350-550 nm, the transmission of ZnS/CdS was improved and reached above 50\%. The ZnS/CdS was annealed with CdCl2. X-ray photoelectron spectroscopy (XPS) was used to investigate its chemical properties. A possible diffusion between CdS and ZnS was observed after annealing. The efficiency of standard CdS/CdTe solar cell was 9.53\%. The device based on ZnS/CdS window layer had a poor 6\% efficiency. With annealing treatment on ZnS/CdS layer, the performance was improved and reached 10.3\%. In addition, the homogeneity of solar cell performance was improved using ZnS/CdS window layer. A thin ZnS layer was quite effective to reduce the possible shunt paths and short parts of window layer and consequently contributed to fabrication of a homogeneous CdTe solar cell. (C) 2013 Elsevier Ltd. All rights reserved.
Added by: Laurent Cournède  
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