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Stacked thin films composed of In 2 (Se,S) 3 and CuIn(Se,S) 2 layers were grown on a fluorine-doped tin oxide (FTO)-coated glass substrate using electrodeposition of the corresponding selenide (In 2 Se 3 and CuInSe 2 ) precursors followed by annealing in H 2 S flow (5% in Ar). Structural...
The possibility to reach up to 14.7% efficiency with Cu(In,Ga)Se 2 (CIGS) solar cell, using a cadmium free buffer layer (indium sulphide:In 2 S 3 ) and an electrodeposited front contact (chloride doped ZnO:ZnO:Cl) is demonstrated in this article. This is the first time that costly gas phase...
In this study, we engineer and investigate the interface structure and chemistry at the indium tin oxide (ITO) anode (front-side electrode) as well as at the Mg−Ag cathode (back-side electrode) in metal phthalocyanine (MePc)/C 60 organic solar cells (OSCs). For the front-side electrode,...
The present work gives an overview of how electron microscopy and its related techniques are used to analyze individual layers and their interfaces in Cu(In,Ga)(S,Se) 2 thin-film solar cells. Imaging of samples can be performed at scales of down to the (sub)angstroms range. At similar spatial...
The development of inorganic solid-state nanostructured solar cells over the last years has been reviewed with respect to concepts and materials. Major attention has been paid to solar cells with extremely thin absorber, solar cells with ultra-thin nano-composite absorber and solar cells with...
In this work we investigate the electronic surface properties of polycrystalline Cu(In,Ga)Se 2 thin films by locally resolved scanning tunneling spectroscopy (STS). From current imaging tunneling spectroscopy (CITS) maps of an area of ( 2 × 2 ) μ m 2 we observe distinct granular...
The spray Ion Layer Gas Reaction (ILGAR) process starts with ultrasonic nebulisation of the precursor solution, e.g. InCl 3 /ethanol for our successful buffer material In 2 S 3 . In an aerosol assisted chemical vapour deposition (AACVD) type reaction an In(O,OH,Cl) film is deposited on a heated...
The atomic structure of the potential photovoltaic materials Cu 2 ZnSnS 4 (CZTS) and Cu 2 ZnSnSe 4 (CZTSe) is discussed on the basis of a structural analysis of neutron powder diffraction data refined by the Rietveld analysis. Both compounds were found to crystallize in the kesterite type...
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