%0 Journal Article %A Núñez-Cascajero, Arántzazu %A Naranjo, Fernando B. %A Mata Fernández, María de la %A Molina Rubio, Sergio Ignacio %T Structural Characterization of Al0.37In0.63N/AlN/p-Si (111) Heterojunctions Grown by RF Sputtering for Solar Cell Applications %D 2021 %@ 1996-1944 %U http://hdl.handle.net/10498/24997 %X Compact Al0.37In0.63N layers were grown by radiofrequency sputtering on bare and 15 nm-thick AlN-buffered Si (111) substrates. The crystalline quality of the AlInN layers was studied by high-resolution X-ray diffraction measurements and transmission electron microscopy. Both techniques show an improvement of the structural properties when the AlInN layer is grown on a 15 nm-thick AlN buffer. The layer grown on bare silicon exhibits a thin amorphous interfacial layer between the substrate and the AlInN, which is not present in the layer grown on the AlN buffer layer. A reduction of the density of defects is also observed in the layer grown on the AlN buffer. %K III-nitrides %K AlInN %K AlN buffer %K RF sputtering %K TEM %~ Universidad de Cádiz