Fabrication of Densely Distributed Silver Indium Selenide Nanorods by Using Ag+ Ion Irradiation

We prepared polycrystalline silver indium selenide thin films by vacuum evaporation on Si (100) substrates at a high temperature using a stochiometric powder. The films were characterized by X-ray diffraction (XRD) and UV-VIS-NIR. spectroscopy. For the fabrication of densely distributed one-dimensional nanostructures of silver indium selenide on Si substrates, thermally evaporated films of AIS on Si (100) substrates were irradiated by incident 200-MeV Ag+ ions at a fluence of 5 x 10(11) ion/cm(2). At elevated substrate temperatures, silver indium selenide (AIS) exhibited a nanorod -like structure. The optical and the structural properties of the irradiated films were studied using UV-VIS-NIR Reflection spectroscopy, atomic force microscopy (AFM), field emission scanning electron microscopy (FESEM), and XRD. The controlled fabrication of such densely distributed one-dimensional nanorods on a Si substrate by using the ion beam technique, we believe, will open a variety of applications, such as nanoelectronics and optoelectronics devices.