The effect of surface functionalization and doping on nanowire devices performances

Abstract

The paper deals with an important scientific problem of enhancement performances of nanowire-based devices. Zinc oxide nanowires and nanorods were grown by electrochemical deposition and hydrothermal techniques. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, sensing characterization, photoluminescence and electroluminescence demonstrates that the obtained nanowires/nanorods represent crystalline zinc oxide. Nanowire-based nanosensors were fabricated by using FIB/SEM and it is demonstrated that the doped nanorod/nanowire-based sensors have higher sensitivity and faster response. Electroluminescence studies of nanowire-based LEDs showed that the emission wavelength of the light can be tuned.